Intel core i7 6850k


Процессор Intel® Core™ i7-6850K (15 МБ кэш-памяти, тактовая частота до 3,80 ГГц) Спецификации продукции

Вся информация, приведенная в данном документе, может быть изменена в любое время без предварительного уведомления. Корпорация Intel сохраняет за собой право вносить изменения в цикл производства, спецификации и описания продукции в любое время без уведомления. Информация в данном документе предоставлена «как есть». Корпорация Intel не делает никаких заявлений и гарантий в отношении точности данной информации, а также в отношении характеристик, доступности, функциональных возможностей или совместимости перечисленной продукции. За дополнительной информацией о конкретных продуктах или системах обратитесь к поставщику таких систем.

Классификации Intel приведены исключительно в информационных целях и состоят из номеров классификации экспортного контроля (ECCN) и номеров Гармонизированных таможенных тарифов США (HTS). Классификации Intel должны использоваться без отсылки на корпорацию Intel и не должны трактоваться как заявления или гарантии в отношении правильности ECCN или HTS. В качестве импортера и/или экспортера ваша компания несет ответственность за определение правильной классификации вашей транзакции.

Формальные определения свойств и характеристик продукции представлены в техническом описании.

‡ Эта функция может присутствовать не во всех вычислительных системах. Свяжитесь с поставщиком, чтобы получить информацию о поддержке этой функции вашей системой или уточнить спецификацию системы (материнской платы, процессора, набора микросхем, источника питания, жестких дисков, графического контроллера, памяти, BIOS, драйверов, монитора виртуальных машин (VMM), платформенного ПО и/или операционной системы) для проверки совместимости с этой функцией. Функциональные возможности, производительность и другие преимущества этой функции могут в значительной степени зависеть от конфигурации системы.

Для технологии Intel® Smart Response требуются подходящий процессор Intel® Core™, набор микросхем с поддержкой данной технологии, программное обеспечение технологии хранения Intel® Rapid и надлежащая гибридная конфигурация накопителей (жесткий диск и твердотельный накопитель меньшей емкости). Результаты могут различаться в зависимости от конфигурации системы. Для получения дополнительной информации свяжитесь с производителем своей системы.

Максимальная тактовая частота с технологией Turbo Boost — это максимальная тактовая частота одноядерного процессора, которую можно достичь с помощью технологии Intel® Turbo Boost. Более подробную информацию можно найти по адресу www.intel.com/content/www/ru/ru/architecture-and-technology/turbo-boost/turbo-boost-technology.html.

Некоторые продукты могут поддерживать новые наборы инструкций AES с обновлением конфигурации процессоров, в частности, i7-2630QM/i7-2635QM, i7-2670QM/i7-2675QM, i5-2430M/i5-2435M, i5-2410M/i5-2415M. Свяжитесь с OEM-поставщиком для получения BIOS, включающего последнее обновление конфигурации процессора.

Для процессоров с поддержкой 64-разрядных архитектур Intel® требуется поддержка технологии Intel® 64 в BIOS.

Номера процессоров Intel® не служат мерой измерения производительности. Номера процессоров указывают на различия характеристик процессоров в пределах семейства, а не на различия между семействами процессоров. Дополнительную информацию смотрите на сайте http://www.intel.com/content/www/ru/ru/processors/processor-numbers.html.

Для получения дополнительной информации, в том числе о процессорах, поддерживающих технологию Intel® HT, посетите сайт http://www.intel.com/content/www/ru/ru/architecture-and-technology/hyper-threading/hyper-threading-technology.html?wapkw=hyper+threading .

Расчетная мощность системы и максимальная расчетная мощность рассчитаны для максимально возможных показателей. Реальная расчетная мощность может быть ниже, если используются не все каналы ввода/вывода набора микросхем.

Анонсированные артикулы (SKUs) на данный момент недоступны. Обратитесь к графе «Дата выпуска» для получения информации о доступности продукции на рынке.

ark.intel.com

Intel Core i7-6850K

Intel Core i7-6850K - 6-ядерный процессор с тактовой частотой 3600 MHz и кэшем 3-го уровня 15360 KB. Процессор предназначен для настольных компьютеров, разъем - LGA2011-3. Имеет встроенный контроллер оперативной памяти (4 канала, DDR4-2133, DDR4-2400) и контроллер PCI Express 3.0 (количество линий - 40).

Основная информация:
Год выхода2016
Сегментдля настольных компьютеров
SocketLGA2011-3
Шина5 GT/s DMI2
Количество ядер6
Количество потоков12
Базовая частота3600 MHz
Turbo Boost3800 MHz
Разблокированный множительда
Архитектура (ядро)Broadwell-E
Техпроцесс14 nm
Транзисторов, млн3200
TDP140 W
Макс. температура72° C
Официальные спецификацииперейти >
Внутренняя память
Кэш L1, КБ32+32x6
Кэш L2, КБ256x6
Кэш L3, КБ15360
Встроенные модули
Графический процессорнет
Контроллер оперативной памяти4-канальный(DDR4-2133, DDR4-2400)
Контроллер PCIePCI Express 3.0 (40 линий)
Другие модули / перифериянет
Инструкции, технологии
• MMX• SSE• SSE2• SSE3• SSSE3• SSE4 (SSE4.1 + SSE4.2)• AES (Advanced Encryption Standard inst.)• AVX (Advanced Vector Extensions)• AVX 2.0 (Advanced Vector Extensions 2.0)• BMI1, BMI2 (Bit Manipulation inst.) • F16C (16-bit Floating-Point conversion)• FMA3 (3-operand Fused Multiply-Add inst.)• EM64T (Intel 64)• NX (XD, Execute disable bit)• VT-x (Virtualization technology)• VT-d (Virtualization for directed I/O)• Hyper-Threading• Turbo Boost 2.0• Enhanced SpeedStep tech.

Сравнить Core i7-6850K с другим процессором

( ~ 2 600 моделей )

Рейтинг процессоров

( + спецификации )

Сервис сравнения видеокарт

( ~ 600 моделей )

Рейтинг видеокарт

( + спецификации )

www.chaynikam.info

Intel® Core™ i7-6850K Processor

This feature may not be available on all computing systems. Please check with the system vendor to determine if your system delivers this feature, or reference the system specifications (motherboard, processor, chipset, power supply, HDD, graphics controller, memory, BIOS, drivers, virtual machine monitor-VMM, platform software, and/or operating system) for feature compatibility. Functionality, performance, and other benefits of this feature may vary depending on system configuration.

1

CINEBENCH* R11.5 and R15 is a benchmark from MAXON Computer that measures the performance of desktop OpenGL* 3D modeling applications.

2

Optimization Notice: Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel® microprocessors. These optimizations include Intel® Streaming SIMD Extensions 2 (Intel® SSE2), Intel® SSE3, and Supplemental Streaming SIMD Extensions 3 (SSSE3) instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel® microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. Notice Revision #20110804.

4

As measured with SPECint_base2006. SPECint*_base2000/2006 measures how fast a device completes a single integer compute task.  SPECint*_rate_base2000/2006 measures throughput, or how many integer compute tasks a device can accomplish in a given amount of time. Comparison made using an Intel® Core™ i7-6950x processor versus an Intel® Core™ i7-5960x processor with otherwise identical system hardware.

5

Warning: Altering PC clock or memory frequency and/or voltage may (i) reduce system stability and use life of the system, memory and processor; (ii) cause the processor and other system components to fail; (iii) cause reductions in system performance; (iv) cause additional heat or other damage; and (v) affect system data integrity. Intel assumes no responsibility that the memory, included if used with altered clock frequencies and/or voltages, will be fit for any particular purpose. Check with memory manufacturer for warranty and additional details. For more information, visit http://www.intel.com/content/www/us/en/gaming/overclocking-intel-processors.html.

www.intel.com

Процессор Intel® Core™ i7-6850K

Эта функция может присутствовать не во всех вычислительных системах. Свяжитесь с поставщиком, чтобы получить информацию о поддержке этой функции вашей системой или уточнить спецификацию системы (материнской платы, процессора, набора микросхем, источника питания, жестких дисков, графического контроллера, памяти, BIOS, драйверов, монитора виртуальных машин (VMM), платформенного ПО и/или операционной системы) для проверки совместимости с этой функцией. Функциональные возможности, производительность и другие преимущества этой функции могут в значительной степени зависеть от конфигурации системы.

1

CINEBENCH* R11.5 и R15 является эталонным тестом компании MAXON Computer, который измеряет производительность во время работы приложений OpenGL* для трехмерного моделирования на настольных ПК.

2

Примечание по оптимизации: компиляторы Intel могут не обеспечивать для процессоров других производителей уровень оптимизации, который не является присущим только процессорам Intel®. Эти оптимизации включают в себя наборы инструкций Intel® Streaming SIMD Extensions 2 (Intel® SSE2), Intel® SSE3 и Supplemental Streaming SIMD Extensions 3 (SSSE3) и другие. Корпорация Intel не гарантирует наличие, функциональность или эффективность оптимизаций микропроцессоров других производителей. Содержащиеся в данной продукции оптимизации, зависящие от микропроцессора, предназначены для использования с микропроцессорами Intel. Некоторые оптимизации, не относящиеся к микроархитектуре Intel®, предназначены для микропроцессоров Intel. Более подробную информацию по конкретным наборам команд, рассматриваемых в настоящем уведомлении, см. руководства пользователя соответствующей продукции. Редакция уведомления № 20110804.

4

Согласно результатам теста SPECint_base2006. Тест SPECint*_base2000/2006 измеряет, насколько быстро устройство выполняет одну задачу с целочисленными вычислениями. Тест SPECint*_rate_base2000/2006 измеряет пропускную способность или количество задач с целочисленными вычислениями, которое может выполнять устройство за заданный период времени. Сравнивался процессор Intel® Core™ i7-6950x с процессором Intel® Core™ i7-5960x в системах с идентичным аппаратным обеспечением.

5

Предупреждение: изменение тактовой частоты и/или напряжения процессора или модулей памяти может (i) привести к ухудшению стабильности системы и сокращению срока службы системы, модулей памяти и процессора; (ii) привести к неисправности процессора и других компонентов системы; (iii) снизить производительность системы; (iv) привести к перегреву или другим повреждениям; (v) повлиять на целостность данных, хранящихся в системе. Корпорация Intel не принимает на себя никакой ответственности за то, что входящая в комплект память при изменении тактовой частоты и/или напряжения будет подходит для тех или иных определенных целей. Уточните информацию о гарантии и подробности у производителя памяти. Подробнее: http://www.intel.ru/content/www/ru/ru/gaming/overclocking-intel-processors.html.

www.intel.ru

Intel Core i7-6850K BX80671I76850K

The number of benchmark samples for this model as a percentage of all 20,781,985 CPUs tested.

CPU
Core i7-6850KIntel  £311Bench 82%, 13,524 samples1,175x
EDIT WITH CUSTOM PC BUILDER Value: 55% - Above average Total price: £1,099
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DescriptionIntel® Core™ i7-6850K Processor (15M Cache, up to 3.80 GHz)
Code NameBroadwell E
Launch DateQ2'16
Processor Numberi7-6850K
# of Cores6
# of Threads12
Cache15 MB
Instruction Set64-bit
Embedded Options AvailableNo
Lithography14 nm
Recommended PriceN/A
Clock Speed3.6 GHz
Max Turbo Frequency4 GHz
Scalability1S Only
Max TDP140 W
Max Memory Size128 GB
Memory TypesDDR4 2400/2133
Memory Channels4
ECC Memory SupportedNo
PCI Express Revision3.0
Max # of PCI Express Lanes40
Turbo Boost 3.0 TechYes
Virtualization Tech (VT-x)Yes
Intel 64Yes
Idle StatesYes
Enhanced Intel SpeedStep® TechYes
Turbo Boost Tech2.0
Hyper-Threading TechYes
Virtualization for Directed I/O (VT-d)Yes
VT-x with Extended Page Tables (EPT)Yes
vPro TechNo
Smart Response TechYes
Max CPU Configuration1
Sockets SupportedLGA2011-v3
Execute Disable BitYes
Trusted Execution TechNo

cpu.userbenchmark.com

Broadwell-E: Intel Core i7-6950X, 6900K, 6850K & 6800K Review

Is Broadwell more attractive to enthusiasts without graphics and up to 10 Hyper-Threaded cores? We test against two previous generations, plus Skylake to find out.

Intel launched its sixth-gen Core architecture, code-named Skylake, last August. That design’s predecessor, referred to as Broadwell, surfaced on the desktop two months prior. I can’t remember a time in the company’s history that an entire product family was superseded so quickly.

The Broadwell-based Core i7-577C and Core i5-5675C weren’t inherently flawed or anything. But they also weren’t optimally configured to replace Intel’s popular Devil’s Canyon CPUs, which enthusiasts bought up in hopes of pushing the Haswell architecture to 5GHz. Instead of emphasizing host processing performance, the Broadwell-based chips we reviewed last June put graphics first. Their Iris Pro Graphics 6200 engines served up playable frame rates in many popular games at 1920x1080, decimating AMD’s fastest APUs in the process. But with IA cores running at lower clock rates than the Core i7-4790K and Core i5-4690K, Broadwell often underperformed in our benchmark suite. No wonder Intel wasted little time rolling out Skylake.

Processor Family IntroductionsArchitectureSandy BridgeIvy BridgeHaswellBroadwellSkylake
DesktopEnthusiast/WorkstationDifference in Months
January 2011November 201110
April 2012September 201316
June 2013August 201415
June 2015June 201613
August 2015TBD

We always knew we’d be seeing Broadwell again, though. There’s a fairly predictable lag between when Intel rolls out a new architecture and when the design is adapted for server/workstation use. So, when we got our hands on Xeon E5-2600 v4, based on Broadwell-EP, we knew the single-socket version for enthusiasts and workstations wasn’t far behind.

Today’s Broadwell-E launch sees Intel’s high-end portfolio expand by 33%. Instead of three new models, we’re getting four. The flagship is now a $1723 affair, rather than the ~$1000 we’re accustomed to paying. But we don’t expect that to be the model most power users express interest in. Let’s break Broadwell-E down to determine if it makes sense as an upgrade to Haswell-E in the latest LGA 2011-v3 platforms.

Broadwell-E, Hold the Graphics, Please

As Intel’s mainstream processors evolve, more of their transistors are dedicated to graphics. The impetus is easy to understand. Its IA cores are tuned well. Four of them working in parallel offer a reasonable balance—fewer cores would bottleneck intensive desktop workloads, while more would go underutilized. Graphics, on the other hand, is an inherently parallel problem. Intel could keep dumping execution units into its graphics engine and still trail the fastest discrete GPUs.

Increasingly, the average desktop user can drop a Skylake-based CPU into an affordable motherboard and enjoy great performance in most applications, even games. Those of us who purpose-build our PCs for gaming bypass on-die graphics, though. We need add-in cards designed for high resolutions and fast frame rates. As a result, much of the progress Intel makes from one generation to the next goes to waste. And enthusiasts don’t like waste.

Whereas the desktop Broadwell launch was a showcase of Intel’s 14nm tri-gate transistors and unprecedented graphics capabilities, Broadwell-E puts the emphasis back on host processing. Customers at this end of the spectrum install their own graphics cards, network adapters and storage controllers to maximize performance. They need lots of connectivity, not passable integrated extras. And so Broadwell-E continues a tradition of increasing core count, piling on cache, feeding on-die resources with a beefier memory controller and expanding PCI Express to accommodate more peripherals.

All four Broadwell-E-based models—Core i7-6950X, Core i7-6900K, Core i7-6850K and Core i7-6800K—are derived from a single die configuration composed of ~3.2 billion transistors.

Core i7-6950XCore i7-6900KCore i7-6850KCore i7-6800KBase Clock RateMax. Turbo Boost Freq.Cores/ThreadsShared L3 CachePCIe 3.0 LanesMemory SupportTDPInterfacePrice
3.0GHz3.2GHz3.6GHz3.4GHz
3.5GHz3.7GHz3.8GHz3.6GHz
10/208/166/126/12
25MB20MB15MB15MB
40404028
DDR4-2400DDR4-2400DDR4-2400DDR4-2400
140W>140W140W140W
LGA 2011-v3LGA 2011-v3LGA 2011-v3LGA 2011-v3
$1723$1089$617$434

The flagship -6950X features 10 cores, representing the complete LCC die. Each core is associated with 2.5MB of last-level cache, yielding a 25MB pool across the chip. The cores also have their own 32KB L1 instruction and data caches, plus 256KB of L2 cache. Core i7-6950X operates at a base frequency of 3GHz, but ramps up to 3.5GHz through Turbo Boost. From there, Intel adds a familiar 40-lane PCIe 3.0 controller and a quad-channel DDR4 controller, which steps up from 2133 MT/s memory support to data rates as high as 2400 MT/s. Hyper-Threading support up and down the Core i7 family means -6950X works on up to 20 threads concurrently.

Despite the changes, Broadwell-E is still compatible with Intel’s X99 chipset through an LGA 2011-v3 interface. Existing motherboards should receive firmware updates to properly recognize the processor family. Meanwhile, new models like the MSI X99A Gaming Pro Carbon we’re testing with today modernize Intel’s aging platform to give it USB 3.1 Gen 2 support, Type-C port connectivity and a U.2 connector for high-end storage.

It’s notable that -6950X maintains the same base and peak clock rates as its predecessor, -5960X, with an extra two cores and the same 140W TDP. No doubt this is attributable to the shift from 22 to 14nm manufacturing.

Those extra two cores compared to Core i7-5960X cost you dearly, unfortunately. Whereas the top Haswell-E model sold for $1000, Intel wants $1723 for Core i7-6950X.

One step down, Core i7-6900K gives you the same eight cores as Intel’s Core i7-5960X at a marginally higher $1089 price point. Disabling two of the die’s cores also turns off 5MB of shared L3 cache; similar to the -5960X, Intel’s Core i7-6900K includes 20MB total. Beyond the speed-up that comes from Broadwell’s slight IPC advantage over Haswell, -6900K also sports a 200MHz-faster base clock rate of 3.2GHz and a maximum Turbo Boost frequency of 3.7GHz. PCIe connectivity goes unchanged from the -6950X, as does memory support, TDP and X99 compatibility.

We've covered Intel's Broadwell architecture in a number of previous stories, including Introducing Intel's 14nm Node and the Broadwell Processor, Broadwell: Intel Core i7-5775C And i5-5675C Review and most recently Intel Xeon E5-2600 v4 Broadwell-EP Review.

The Core i7-6850K features six Hyper-Threaded cores and 15MB of last-level cache, allowing it to juggle 12 threads at a time. Fewer active cores give Intel the thermal headroom to play with clock rates a bit, and the -6850’s base frequency increases to 3.6GHz (a 100MHz advantage over Core i7-5930K). Turbo Boost takes the CPU to 3.8GHz in lightly-threaded workloads (also a 100MHz increase compared to the previous generation).

This is the third and final Broadwell-E CPU with 40 lanes of PCIe connectivity. DDR4-2400 memory support carries over, as does the 140W TDP and LGA 2011-v3 interface. Not surprisingly, Intel targets a similar price as the -6850K’s predecessor, citing $617 in 1000-unit quantities.

Also a six-core processor, Core i7-6800K operates at a diminished 3.4GHz base and 3.6GHz maximum Turbo Boost frequency. Its 15MB of shared L3 cache, four channels of DDR4-2400 memory support, 140W TDP and LGA 2011-v3 interface go unchanged from the -6850K. However, its PCI Express controller narrows to 28 lanes.

With the recent revelation that SLI support on Nvidia’s Pascal-based cards is officially limited to dual-GPU configurations, not to mention data showing little performance difference between x8 and x16 links, the loss of 12 lanes compared to Intel’s higher-end Core i7s shouldn’t be a deal-breaker. Twenty-eight lanes are enough for two high-end GPUs, PCIe-based storage and even add-in networking if you need it. The real question is going to be whether you’re better off with six Broadwell cores at 3.4GHz or four Skylake cores at 4GHz (for $100 less, at that).

Turbo Boost 3.0: Broadwell-E’s Innovative Extra

Although it’s hard to fall in love with Broadwell-E’s specifications and downright difficult to forgive an almost doubling in price of the top-end model, today’s launch does introduce one new feature enthusiasts may appreciate (if we're able to get to the bottom of what it does).

Subtle variations in the quality of a silicon die, determined by many different variables in the manufacturing process, affect a CPU’s maximum frequency at any given voltage level. Even within a single CPU, it’s common to find one core that runs cooler or overclocks further than the others when they’re all subject to a similar workload.

According to Intel, its Turbo Boost Max Technology 3.0 gives you the ability to characterize a CPU’s performance via software, identify the strongest core and run single-threaded workloads on it. The idea is to maximize the amount of time you spend at high frequencies, scaling down as core utilization increases. It either requires OS awareness or Intel’s core affinitization driver; we used the latter on our Windows 10-based test benches. Intel doesn’t consider this overclocking, as the CPU continues to operate within its specifications.

This capability is enabled across all four Broadwell-E processors for now. Intel couldn’t tell us whether there’s any hardware on-die needed to support Turbo Boost Max Technology 3.0, but motherboard BIOS support is required. We wouldn't be surprised to see this functionality make its way into the next generation of mainstream processors as well.

Turbo Boost Max does not take the place of Turbo Boost 2.0—that feature continues to increase clock rate up to predetermined limit based on core utilization. Rather, Turbo Boost Max appears to pin affinity to the “fastest” core and actually exceed that ceiling. The trick is it can be difficult to spot. There's a Utilization Threshold percentage that must be crossed during an Evaluation Interval, which assures Turbo Boost Max kicks in to help with demanding work. By default, the threshold is 90% and the interval is 1000ms. Our single-threaded LAME benchmark never hits 90%, so as we were looking for Turbo Boost Max in that real-world test, we never saw frequencies above 3.4GHz (within the -6950X's Turbo Boost 2.0 range). Cinebench's single-core benchmark tops out at 99.5% utilization on one core though, so it stretches all the way up to 4GHz according to ThrottleStop 8.10 Beta 2.

There's naturally a limit to where Turbo Boost Max Technology 3.0 can no longer provide its benefit. In the graph above, we ran Prime95's torture test with one thread active, turned it off, increased to two threads, turned it off and then fired up three threads. The first pass gave us 3.9GHz before dropping back to an EIST-imposed 1.2GHz. Next, we saw 3.8GHz. By the time three threads were active, the Core i7-6950X was pegged at 3.4GHz.

Intel could probably do a better job documenting this feature, but we're not sure if it's guaranteeing up to 4GHz on a -6950X through Turbo Boost Max Technology 3.0 or simply telling enthusiasts they can expect some arbitrary degree of additional performance based on the quality of their CPU.

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Core i7-6950XCore i7-6900KCore i7-6850KCore i7-6800K

Motherboard & Memory

We’re using MSI's X99A Gaming Pro Carbon as the basis for our benchmarks and overclocking attempts. As mentioned previously, this is a refreshed X99-based platform that modernizes Intel's aging chipset a bit with USB 3.1 Gen 2 support, Type-C port connectivity and a U.2 connector for high-end storage.

If you're new to building PCs, MSI's Game Boost is an interesting one-button overclocking feature. Of course, experienced power users are going to tweak their settings manually, but it's still nice to have options.

One of the most important components of a stable overclock is the right memory. We’re using four 8GB modules of G.Skill Trident Z DDR4-3200 for our X99, X79 and Z170 platforms. This should assure our Broadwell-E overclocks aren't limited by memory.

The only difference between our performance benchmark system and the one for overclocking/power consumption testing is cooling. We don't want to risk hitting a thermal ceiling, so the platform we're tuning employs an open-loop water cooling setup that can get rid of as much as 500W of waste heat. These CPUs shouldn't come close to that number, but you never know...

Benchmarks

Ashes of the SingularityBioshock InfiniteF1 20153DMark7-ZipBlenderCinebenchHandBrakeLAMEPCMark 8
2560x1440, Point Lights: High, Glare, High, Terrain Detail Object Level: High, Shading Samples: 16, Terrain Detail Shading Samples: 32, Shadow Quality: High
2560x1440, Ultra quality preset, Light Shafts: On, Ambient Occlusion: Ultra, Object Level of Detail: Ultra
2560x1440, 4x SSAO, 16x anisotropic filtering, Post-processing options enabled, Shadows enabled, Smoke shadows enabled, Vehicle reflections enabled, Weather effects enabled, Ground cover enabled.
Fire Strike version 1.1
Version 16.02, LZMA2 method, Ultra compression, 4.52GB workload, mixed file types
Version 2.75a, Cycles engine, BMW benchmark
Version R15, Single- and multi-threaded CPU benchmark
Version 0.10.2, x264, Constant quality: 20, variable bit-rate
Version 3.99, .wav to .mp3 conversion, 160 Kb/s fixed bitrate
Version 2.7.613, Hardware acceleration enabled, Adobe Creative Cloud and Microsoft Office suites

Overclocking & Stability

Our overclocking methodology includes increasing each CPU's clock rate until we discover the maximum for a fully utilized processor and even faster Turbo Boost settings for each core. We also adjust voltages as-necessary to achieve a balance between stability and waste heat, since this directly affects cooling.

With a configuration that boots successfully, we run different load scenarios to verify stability. After completing Aida64’s integrated stress test (CPU, FPU, cache), the system is faced with workloads created by a Creo 3.0 SPECapc run, 4K video compression using the Adobe CC Media Encoder, a Witcher 3 sequence, Prime95 and AVX.

A clock rate configuration is only considered successful if those workloads finish without any errors and within reasonable voltages. Before we get to the results, here’s a table with our test system’s technical specifications:

Power Consumption Test SetupTest MethodTest EquipmentWater Cooling
Contact-free DC Measurement at External Auxiliary Power Supply Cable Direct Voltage Measurement at Power Supply

Real-Time Infrared Monitoring and Recording

2 x Rohde & Schwarz HMO 3054, 500MHz Digital Multi-Channel Oscilloscope with Storage Function 4 x Rohde & Schwarz HZO50 Current Probe (1mA - 30A, 100kHz, DC) 4 x Rohde & Schwarz HZ355 (10:1 Probes, 500MHz) 1 x Rohde & Schwarz HMC 8012 Digital Multimeter with Storage Function

1 x Optris PI640 80Hz Infrared Camera + PI Connect

Pump: Alphacool VPP655 (Undervolted, 50 percent)CPU Cooler: Lian LiReservoir: Phobya Radiator: Alphacool, 24cm (6cm thickness)Fan: 2x 12cm Noiseblocker eLoop, PWM controlled (up to 1500 RPM)

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