Ati radeon hd 6870

AMD Radeon HD 6870

Общая информация
Год выхода2010
Категория видеокартыДесктопная
Тип видеокартыДискретная
ИнтерфейсPCIe 2.0
Максимальное разрешение2560 x 1600
Графический процессор
АрхитектураTeraScale 2
Количество чипов1
Техпроцесс40 nm
Количество транзисторов1700 млн
Площадь255 мм²
Частота ядра900 MHz
Универсальных шейдерных блоков 1120
Блоков растеризации (ROP)32
Текстурных блоков (TMU)56
Пиксельная скорость заполнения (pixel fillrate)28.8 GPixel/s
Текстурная скорость заполнения (texel fillrate)50.4 GTexel/s
Объем1024 Mb
Частота4200 MHz
Ширина шины256 bit
Пропускная способность134.4 GB/s
Макс. потребляемая энергия (TDP)151 W
Мин. требования к блоку питания500 W
Разъемы дополнительного питания6-pin + 6-pin
Поддерживаемые API и технологии
Shader Model5.0
SLI / CrossFireXCrossFireX
Другие технологии• ATI Eyefinity• HDCP• AMD HD3D

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Radeon HD 6870

older Released December, 2010

6.1 Out of 10 GPUBoss Score

MSI Radeon HD 6870 Hawk 930 MHz 1 GBAMD Radeon HD 6870 900 MHz 1 GBXFX Radeon HD 6870 XXX Edition 925 MHz 1 GBSapphire Radeon HD 6870 FleX 900 MHz 1 GBASUS Radeon HD 6870 DirectCU 915 MHz 1 GBGIGABYTE Radeon HD 6870 SOC 950 MHz 1 GBHIS Radeon HD 6870 IceQ X Turbo 920 MHz 1 GBVTX3D Radeon HD 6870 V2 900 MHz 1 GBSapphire Radeon HD 6870 Dirt3 Edition 920 MHz 1 GBXFX Radeon HD 6870 2 GB 900 MHz 2 GBSapphire Radeon HD 6870 Vapor-X 900 MHz 1 GBMSI Radeon HD 6870 Twin Frozr II OC 920 MHz 1 GBSapphire Radeon HD 6870 Toxic 970 MHz 1 GBMSI Radeon HD 6870 OC 2 GB 920 MHz 2 GBRadeon HD 6870HIS Radeon HD 6870 IceQ X Turbo X 975 MHz 1 GBHIS Radeon HD 6870 Fan Turbo 920 MHz 1 GBGIGABYTE Radeon HD 6870 OC 915 MHz 1 GB

GPU brand GPU name Market Clock speed Is dual GPU Reference card
Barts XT
930 MHz
AMD Radeon HD 6870 900 MHz 1 GB
Shading units Texture mapping units Render output processors Compute units Pixel rate Texture rate Floating-point performance
29.76 GPixel/s
52.08 GTexel/s
2,083 GFLOPS
Memory clock speed Effective memory clock speed Memory bus Memory Memory type Memory bandwidth
1,050 MHz
4,200 MHz
256 bit
1,024 MB
134.4 GB/s
TDP Idle noise level Load noise level Idle power consumption Load power consumption
39.3 dB
50.6 dB

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ATI Radeon HD 6870 Review

1 - ATI Radeon HD 6870 1GB Review 2 - Radeon HD 6870 1GB Specifications 3 - Radeon HD 6870 1GB New Features, Improvements and 3D 4 - Radeon HD 6870 Test Setup 5 - Radeon HD 6870 Dirt 2 Performance 6 - Radeon HD 6870 Arma II: Operation Arrowhead Performance 7 - Radeon HD 6870 Just Cause 2 Performance 8 - Radeon HD 6870 Bad Company 2 Performance 9 - Radeon HD 6870 Power Consumption and Thermals 10 - Radeon HD 6870 Performance Analysis 11 - Radeon HD 6870 Value and Conclusion Next Manufacturer ATI UK price (as reviewed) Around £200 (inc VAT) US price (as reviewed) Around $250 (exc tax)

ATI HD 6870 1GB Specifications

It’s been 11 months since ATI last launched a new range of GPUs, and since then the graphics worlds has a distinctly red tinge to it rather than the green we’ve been so used to seeing. With Nvidia late to deliver a DX11 GPU, ATI had the market to itself and shipped 25 million DX11-compatible GPUs to gain first place in the discreet GPU market share. ATI has made considerable inroads in both the number of people using Radeon graphics cards and the number of game development houses using its hardware to optimise and tune their games.

The latter is a considerable victory for ATI, as the more games studios you work with, the more they’ll implement great ways of using your GPU’s features and architecture and the more stable your drivers should be. The HD 6000-series can therefore be seen as ATI’s tricky follow-up – there’s a lot at stake, meaning that ATI could either be really dominant in six months’ time, or drop the ball for Nvidia to pick up. Unlike previous launches, the HD 6000-series opens with the mid-range Barts Pro and Barts XT GPU pairing, despite the historically high-end name. While the HD 5800 was a high-end GPU, and HD 5900 denoted a dual-GPU card, the HD 6850 1GB and HD 6870 1GB are pitched at around £150 and £200 respectively. There will be a HD 6900 card in a month’s time, based around a faster GPU, with a dual-GPU HD 6900 also planned. Click to enlarge Hopefully you’ve stayed with us, and not headed straight off to the forums to flame ATI’s marketing team – we say this because the new naming scheme does make sense, once you accept the situation that ATI was in. The crux of the problem was that TSMC, ATI’s fabrication partner, couldn’t deliver the 32nm manufacturing process that ATI had been betting on. As the smaller process would have allowed ATI to decrease the cost per GPU die (while also potentially allowing higher clock speeds and lower power consumption), it couldn’t deliver a Barts GPU at the £100 to £130 price point it would have wanted. Rather than leave this hotly contested and highly profitable section of the market barren of ATI choice, ATI has chosen to continue making and selling the Radeon HD 5700. However, ATI won’t rename this range as the HD 6700 series – we suspect that some of the stories on the internet about this proposed move were leaked by ATI and used to judge whether such a re-branding move would be received badly or not. Whatever the reason, ATI was in the position that it didn’t have a new GPU that would hit the £100-150 sweet spot and would have to continue selling a part called a Radeon HD 5700. Calling the new GPUs the HD 6700 series would have killed HD 5700 sales, so Barts therefore had to be called a HD 6800 GPU – it was the most logically choice and we think the best option given the awkward situation. Sapphire (left) and HIS (right) will join XFX (above) and other manufacturers to launch the ATI Radeon HD 6870 This could mean that we'll see some surprises in the HD 6900 range – will the single-GPU parts be called HD 6930 and HD 6950 with the dual-GPU card a HD 6990? ATI has said previously that it worried that the difference in name between a single-GPU HD 3870 and a dual-GPU HD 3890 wasn’t enough to justify the large price difference, the amount of hardware you were buying or the vast potential performance on offer. We have no indication as to how the HD 6900 will be branded – this is just conjecture.

We’re as interested as ATI is in what your thoughts are on the matter of the naming change – head over to the forums, unless you want to get into the HD 6800-series specifications first.

HIS Radeon HD 6870 Turbo 1 GB Review

19 Packaging & Contents » Last week, AMD, which pioneered DirectX 11 compliant PC consumer graphics, released its second-generation Radeon HD 6800 DirectX 11 architecture, codenamed Northern Islands. The company has enjoyed a 6 month head-start into the race for DirectX 11 graphics hardware market dominance, which also reflected in both growth of market-share, and domination in sales. The time passed by also allowed AMD to refine and fine-tune its architecture to better suit the existing 40 nm silicon fabrication process, by promising to churn out higher performance per Watt and performance per mm² of die-area (plays an important role in product pricing), compared to the previous-generation Evergreen architecture. The HIS Radeon HD 6870 Turbo that we are reviewing today is an overclocked version of the regular HD 6870 reference design. At this time add-in-board partners are not allowed to make any changes to the PCB, components or thermal design of the HD 6870 so the possible changes are quite limited. In the case of the HIS HD 6870 Turbo, the core clock has been increased from 900 MHz to 920 MHz and the memory clock from 1050 MHz to 1120 MHz.

Shader units ROPsGPUTransistorsMemory SizeMemory Bus Width Core ClockMemory ClockPrice
Radeon HD 5770GeForce GTX 460GeForce GTX 460Radeon HD 6850Radeon HD 5850GeForce GTX 470Radeon HD 6870HIS HD 6870 TurboRadeon HD 5870GeForce GTX 480Radeon HD 5970
80033633696014404481120112016004802x 1600
162432323240323232482x 32
JuniperGF104GF104BartsCypressGF100BartsBartsCypressGF1002x Cypress
1040M1950M1950M1700M2154M3200M1700M1700M2154M3200M2x 2154M
1024 MB 768 MB1024 MB1024 MB1024 MB1280 MB1024 MB1024 MB1024 MB1536 MB2x 1024 MB
128 bit 192 bit 256 bit 256 bit 256 bit 320 bit 256 bit 256 bit 256 bit 384 bit 2x 256 bit
850 MHz 675 MHz 675 MHz 775 MHz 725 MHz 607 MHz 900 MHz 920 MHz 850 MHz 700 MHz 725 MHz
1200 MHz 900 MHz 900 MHz 1000 MHz 1000 MHz 837 MHz 1050 MHz 1120 MHz 1200 MHz 924 MHz 1000 MHz
Next Page »Packaging & Contents Page: 1- Introduction & Specifications 2- Packaging & Contents 3- The Card 4- A Closer Look 5- Test Setup 6- Aliens vs. Predator 7- Battlefield: Bad Company 2 8- BattleForge 9- Call of Duty 4 10- Call of Juarez 2 11- Crysis 12- Dawn of War 2 13- DiRT 2 14- Far Cry 2 15- HAWX 16- Metro 2033 17- Riddick: Dark Athena 18- STALKER - Clear Sky 19- Supreme Commander 2 20- Unreal Tournament 3 21- World of Warcraft 22- 3DMark03 23- 3DMark05 24- 3DMark06 25- Unigine Heaven 2.0 26- Power Consumption 27- Fan Noise 28- Performance Summary 29- Performance per Watt 30- Performance per Dollar 31- Overclocking & Voltage Tuning 32- Value & Conclusion 33- (19 User Comments)

ATI Radeon HD 6870 Review

Prev 1 - ATI Radeon HD 6870 1GB Review 2 - Radeon HD 6870 1GB Specifications 3 - Radeon HD 6870 1GB New Features, Improvements and 3D 4 - Radeon HD 6870 Test Setup 5 - Radeon HD 6870 Dirt 2 Performance 6 - Radeon HD 6870 Arma II: Operation Arrowhead Performance 7 - Radeon HD 6870 Just Cause 2 Performance 8 - Radeon HD 6870 Bad Company 2 Performance 9 - Radeon HD 6870 Power Consumption and Thermals 10 - Radeon HD 6870 Performance Analysis 11 - Radeon HD 6870 Value and Conclusion Next

The Barts design, also known as the Radeon HD 6800

As an upper mid-range GPU, the HD 6870 1GB hasn’t got an eye-watering number of stream processors or a completely bonkers level of tessellation units. In fact, the Barts design of the HD 6800 series (right) is fairly conservative – an effort, no doubt, to deliver the chip on time and to a particular budget. After all, even Intel doesn’t take on the project of designing a whole new architecture as well as proving a new manufacturing process, and yet the GPU world has been doing this for years. This is possibly a sign of GPU design and production maturing and trying to avoid lengthy delays on new products, or perhaps it’s just that we’re getting to the point where manufacturing shrinks are so complicated that we won’t see the rapid shrinking of the mid-Naughties. Or possibly it’s a bit of both. Either way, the bulk of a HD 6870 1GB looks very familiar to anyone who knows their ATI hardware – there’s a huge bank of SIMD (Single Instruction, Multiple Data) engines with 80 stream processors each. These stream processors follow the VLIW5 (Very Long Instruction Word, 5:1 ratio) configuration of having a super stream processor for every five basic units, with this unit capable of double-precision floating point operations and other high-precision maths. The total number of stream processors in the Barts GPU is 1,120, the same as a Radeon HD 5830 1GB, but the Barts design has an upgraded front end to keep those stream processors working. This upgrade is combined with much higher GPU frequencies to deliver more performance – this is despite HD 6800 GPUs using the same 40nm manufacturing process as the HD 5000-series. The HD 6870 1GB has a clock speed of 900MHz and is complemented by 1GB of 1,050MHz (4.2GHz effective) DDR5 memory while the HD 6850 1GB has a frequency of 775MHz and 1GB of 1GHz (4GHz effective) GDDR5 memory.In comparison a HD 5850 1GB has a clock speed of 725MHz and 1GHz (4GHz effective) GDDR5 memory. With tessellation one of the stand-out features of DirectX 11, we were expecting ATI to add more grunt in this department, and our expectations were duly met. However, we expected a little more than the incremental updates of Barts’ tessellation engine, which only offers better thread management and buffering over and beyond the tessellation unit of the HD 5000-series. This means that while Nvidia’s Fermi GPUs have tessellation units galore (one per SM, with three or four SMs per GPC and one to four GPCs per chip), a HD 6800 GPU still only has one. ATI still claims that the HD 6870 has up to twice the tessellation performance of a HD 5870, however. Click to enlarge ATI also claims that the geometry throughput of the HD 6800 series has been improved, but this is merely because of the higher GPU frequency of a HD 6870. A HD 5850 manages to process 725 million polygons per second thanks to its 725MHz frequency while a HD 6870 can process 900 million polygons per second as it’s clocked at 900MHz. While the front end of a HD 6800 GPU has a new design, it’s a fairly small and incremental update from the Evergreen GPU design of the HD 5000-series. The back end of Barts is identical to that of the HD 5800 GPU on paper, with a 256-bit memory interface and 32 ROPs. While we’re used to seeing effective memory frequencies of 4.8GHz from even lower mid-range cards such as the HD 5770 1GB, the HD 6870 1GB only has an effective memory frequency of 4.2GHz while the HD 6850 1GB has the same 4GHz effective frequency as the HS 5850 1GB,
 ATI Radeon HD 5870 1GBATI Radeon HD 6870 1GBATI Radeon HD 5850 1GBATI Radeon HD 6850 1GBATI Radeon HD 5770 1GBNvidia GeForce GTX 470 1,280MBNvidia GeForce GTX 460 1GBNvidia GeForce GTX 460 768MB
CodenameCypress XTBarts XTCypress ProBarts ProJuniper XTGF100GF104GF104
Stream Processors1,600 (850MHz)1,120 (900MHz)1,440 (725MHz)980 (775MHz)800 (850MHz)448 (1,215MHz)336 (1,350MHz)336 (1,350MHz)
Layout20 SIMD engines14 SIMD engines18 SIMD engines12 SIMD engines10 SIMD engines14 SMs, 4 GPCs7 SMs, 2 GPCs7 SMs, 2 GPCs
Tesselation Units111111477
Texture Units80567248405677
Frequency1,050MHz (4.2GHz effective)1,050MHz (4.2GHz effective)1GHz (4GHz effective)1GHz (4GHz effective)1.2GHz (4.8GHz effective)837MHz (3.2GHz effective)900MHz (3.6GHz effective)900MHz (3.6GHz effective)
Bandwidth134.4 GB/sec134.4 GB/sec128 GB/sec128 GB/sec76.8 GB/sec134 GB/sec115 GB/sec86 GB/sec
Card Specifications
Power Connectors2 x 6-pin PCI-E2 x 6-pin PCI-E2 x 6-pin PCI-E1 x 6-pin PCI-E1 x 6-pin PCI-E2 x 6-pin PCI-E1 x 6-pin PCI-E1 x 6-pin PCI-E
Max Power Draw188W151W151W127W108W215W160W150W
Idle Power Draw27W19W27W19WUnknownUnknownUnknownUnknown
Rec PSU500WUnknown500WUnknown450W550W450W450W
Rough Street Price£320£220£200£150£120£200£155£120

ATI Radeon HD 6870 Review

Prev 1 - ATI Radeon HD 6870 1GB Review 2 - Radeon HD 6870 1GB Specifications 3 - Radeon HD 6870 1GB New Features, Improvements and 3D 4 - Radeon HD 6870 Test Setup 5 - Radeon HD 6870 Dirt 2 Performance 6 - Radeon HD 6870 Arma II: Operation Arrowhead Performance 7 - Radeon HD 6870 Just Cause 2 Performance 8 - Radeon HD 6870 Bad Company 2 Performance 9 - Radeon HD 6870 Power Consumption and Thermals 10 - Radeon HD 6870 Performance Analysis 11 - Radeon HD 6870 Value and Conclusion Next While the Radeon HD 6800 GPU might not be all that new, ATI has added a few more tangible features and enhancements, plus one rather annoying downgrade from the HD 5000-series. The most noticeable of the new technology is the range of outputs available on standard cards, with six ports of varying size and format. Standard HD 6800 cards are due to have two mini-DisplayPort, one HDMI and two DVI outputs, though manufacturers can make adjustments as they like. Those with screens with over 1,920 x 1,200 pixels should warned that only one of the DVI outputs in dual-link, and that it’s not clearly marked on most cards which of the two this is – just bear this in mind if your PC refuses to give you a desktop beyond 1,280 x 800. Why ATI felt the need to skimp on this basic support is beyond us. ATI was keen to extoll the virtues of the new DisplayPort 1.2 spec that the HD 6000-series supports. This enables audio bit-streaming and Multi Stream Transport (MST), both of which are of little value on a gaming-class graphics card at the moment. Audio bit-streaming might be useful for a HTPC (Home Theatre PC), but not so much on a gaming PC, unless you use the built-in speakers of your monitor (hint: don’t). Click to enlarge Multi Stream Transport allows one DisplayPort output to link to up to three DisplayPort displays, either via a daisy-chain or via a forthcoming MST hub (which will actually allow you to connect up to four screens over any display standard). According to AMD, ‘the DisplayPort 1.2 hubs are expected to be available sometime in 2011. No cost has been determined, but we’re confident that they will be affordable, and enable a more cost effective solution for multi-display gaming than current competing solutions that require two cards.’ Rumour has it that the hubs will only be on sale well into next year and will cost around $150. The HDMI port supports HDMI 1.4a, which allows audio and video streaming of Blu-ray 3D. This is pertinent, as AMD introduces 3D support with the HD 6000-series, dubbing its technology the buzzword-tastic HD3D. AMD is using a passive, polarised method for its 3D, unlike Nvidia and it’s 3D Vision shutter glasses. To enable 3D on an ATI system you’ll need a piece of middleware software from a company such as DDD. At the moment there are very few displays that ATI’s version of 3D. Click to enlarge The new 3D support matches up with the new UVD 3 technolgy to enhance video playback (again a slightly pointless feature on a gaming-grade graphics card if you ask us), which adds support for a few MPEG formats that UVD 2 didn’t cater for. As this is the launch of a GPU, there’s a new format of AA that you can use, and it’s called Morphological AA, presumably derived from the meaning ‘the study of differences in shape’. It’s a full-screen AA method with adaptive filtering that was programmed via DirectCompute; MAA detects edges (or at least parts of the scene where there’s a stark difference in pixel colour) and shades accordingly to smooth the jaggies out. You’ll need Catalyst 10.10 to apply MAA, and if you want to use it, you have to force it via the driver. The image on the left has MAA applied, though you'll have to click for big to appreciate the effect. ATI has also updated its AF support, as it suffered a little at certain MIP levels – this has been improved, and the HD 600 maintains the rotational invariancy of its HD 5000 predecessor. This means that textures blend smoothly no matter what angle they appear to the viewpoint.

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