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Radeon HD 5870 vs Radeon HD 6950
Intro
The Radeon HD 5870 features a clock frequency of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It features 1600(320x5) SPUs, 80 TAUs, and 32 ROPs.Compare all of that to the Radeon HD 6950, which comes with clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 RAM. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5870 |
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188 Watts |
| Radeon HD 6950 |
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200 Watts |
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Memory Bandwidth
The Radeon HD 6950 should theoretically perform a bit faster than the Radeon HD 5870 in general. (explain)
| Radeon HD 6950 |
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160000 MB/sec |
| Radeon HD 5870 |
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153600 MB/sec |
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Texel Rate
The Radeon HD 6950 will be just a bit (about 4%) faster with regards to AF than the Radeon HD 5870. (explain)| Radeon HD 6950 |
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70400 Mtexels/sec |
| Radeon HD 5870 |
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68000 Mtexels/sec |
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Pixel Rate
The Radeon HD 5870 will be a small bit (about 6%) faster with regards to FSAA than the Radeon HD 6950, and should be capable of handling higher screen resolutions without losing too much performance. (explain)| Radeon HD 5870 |
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27200 Mpixels/sec |
| Radeon HD 6950 |
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25600 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
Radeon HD 5870Amazon.com
Check prices at:
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Radeon HD 6950Amazon.com
Check prices at:
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Specifications
| Model | Radeon HD 5870 | Radeon HD 6950 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | September 23, 2009 | December 2010 |
| Code Name | Cypress XT | Cayman Pro |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 850 MHz | 800 MHz |
| Memory Speed | 4800 MHz | 5000 MHz |
| Power (Max TDP) | 188 watts | 200 watts |
| Bandwidth | 153600 MB/sec | 160000 MB/sec |
| Texel Rate | 68000 Mtexels/sec | 70400 Mtexels/sec |
| Pixel Rate | 27200 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 1600(320x5) | 1408 |
| Texture Mapping Units | 80 | 88 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 2154 million | 2640 million |
| Bus | PCIe 2.1 x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.
Radeon HD 5870Amazon.com
Check prices at:
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Radeon HD 6950Amazon.com
Check prices at:
|
Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
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Comments
8 Responses to “Radeon HD 5870 vs Radeon HD 6950”muy buena la pagina es exactamente lo que estaba buscando...muy pero muy buena, mas aya de que los resultados no sean exactos, la idea esta...y es exelente, felicitaciones!!
[...] habe dann ist der Unterschied nicht wirklich merkbar. Hier sieht du ganz grob den Unterschied Radeon HD 5870 vs Radeon HD 6950 – Performance Comparison Benchmarks @ Hardware Compare Zitieren + [...]
[...] to be enjoyed? How big difference is there really between HD5870 and HD6950? Please enlight me.. http://www.hwcompare.com/6132/radeon...adeon-hd-6950/ An answer would be appreciated.... Attached Images [...]
No difference at all, Overclock a tad and it faster than the 6950, only thing thats better is more vram.
@mauro .. like Viking says - only, i'd add that the 6950 offers OpenGL 4.1 support. What that means, in rel terms, is it might be slightly better optimized for newer, 3D gaming titles that utilise OpenGL. Other than that? They're very evenly matched cards .. so put it like this: flip a coin - heads for the 5870, tails for the 6950 - to pick one ... i guarantee you won't be disappointed with the outcome ;P
The 2GB 6950 is the way to go! You can flash the 6970 firmware and unlock the locked shader cores and if you use the ASUS firmware you can even add a 20% overclock to blow the 5870 out of the water. Crisis 3 with everything maxed out hits 136 FPS with the ASUS 6970 firmware and 20% boost and runs at 89 degrees C well below the 95C design limit since it is after all the same exact reference hardware only hobbled by a greedy company to dole out performance. I love finding out these cheesy ploys and exploiting them.
@George K ... the 6950 1GB has the same unlock capability ( ..i should know, the rig i'm typing this on has a 6950-1G @ 1536 SPU's ;P ). The 6950-2G's obviously will rule at high res' over the 1GB versions though. I'm getting high 60's, temperature wise (on ref' cooler), with Crysis & idling @ 30-35. Wanna know how to keep these babies running cool - without after-market cooling (... and short of putting the rig in a freezer)?? ... ask me how ;P
Actually, after testing the 5870 vs 6950, on a modest 5.5% bump on the core (to 900), for the 5870, and a 4% bump on the memory clock (to 1250), the 5870 returns, pixel fill: 28.8GP/s, texture fill: 72GT/s and mem' b/w @ 160GB/s. That's slightly better than parity with the 6950. Also consider that the 5870 is known to be able to clock up to core: 1000 & mem:1300 memory: http://www.tweaktown.com/articles/3286/gigabyte_radeon_hd_5870_1gb_super_overclock_video_card_overclocked_higher/index11.html --> Add to the fact 5870's have 1600 shader cores vs just 1408 for 6950's, and all the sudden the 6950, by all rights, looks more like a 'side-grade' rather than an upgrade.