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Radeon HD 6950 2GB vs Radeon HD 7850
Intro
The Radeon HD 6950 2GB comes with a clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit memory bus, and uses a 40 nm design. It features 1408 SPUs, 88 Texture Address Units, and 32 ROPs.Compare all that to the Radeon HD 7850, which features a core clock speed of 860 MHz and a GDDR5 memory frequency of 1200 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7850 |
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130 Watts |
| Radeon HD 6950 2GB |
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200 Watts |
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Memory Bandwidth
The Radeon HD 6950 2GB should theoretically be a bit faster than the Radeon HD 7850 overall. (explain)
| Radeon HD 6950 2GB |
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160000 MB/sec |
| Radeon HD 7850 |
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153600 MB/sec |
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Texel Rate
The Radeon HD 6950 2GB should be much (more or less 28%) better at anisotropic filtering than the Radeon HD 7850. (explain)| Radeon HD 6950 2GB |
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70400 Mtexels/sec |
| Radeon HD 7850 |
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55040 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the Radeon HD 7850 is the winner, but not by far. (explain)| Radeon HD 7850 |
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27520 Mpixels/sec |
| Radeon HD 6950 2GB |
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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 6950 2GBAmazon.com
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Radeon HD 7850Amazon.com
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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 6950 2GB | Radeon HD 7850 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | December 2010 | March 2012 |
| Code Name | Cayman Pro | Pitcairn Pro |
| Memory | 2048 MB | 2048 MB |
| Core Speed | 800 MHz | 860 MHz |
| Memory Speed | 5000 MHz | 4800 MHz |
| Power (Max TDP) | 200 watts | 130 watts |
| Bandwidth | 160000 MB/sec | 153600 MB/sec |
| Texel Rate | 70400 Mtexels/sec | 55040 Mtexels/sec |
| Pixel Rate | 25600 Mpixels/sec | 27520 Mpixels/sec |
| Unified Shaders | 1408 | 1024 |
| Texture Mapping Units | 88 | 64 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 2640 million | 2800 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 6950 2GBAmazon.com
Check prices at:
|
Radeon HD 7850Amazon.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.
|
Comments
One Response to “Radeon HD 6950 2GB vs Radeon HD 7850”[...] modelGigabyte Radeon HD 7850 OC WindForce 2GB DDR5 256-bi (GV-R785OC-2GD)Eu din cate am observat de aici ca este mai slab 7850 fata de 6950 2gb, ce pot face sa-mi dea banii inapoi daca nu poate sa imi dea [...]