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GeForce GTX 295 vs Radeon HD 6950
Intro
The GeForce GTX 295 uses a 55 nm design. nVidia has clocked the core speed at 576 MHz. The GDDR3 RAM works at a frequency of 999 MHz on this particular card. It features 240 SPUs as well as 80 Texture Address Units and 28 Rasterization Operator Units.Compare that to the Radeon HD 6950, which comes with core 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 Texture Address Units and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6950 |
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200 Watts |
| GeForce GTX 295 |
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289 Watts |
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Memory Bandwidth
The GeForce GTX 295, in theory, should perform much faster than the Radeon HD 6950 overall. (explain)
| GeForce GTX 295 |
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223776 MB/sec |
| Radeon HD 6950 |
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160000 MB/sec |
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Texel Rate
The GeForce GTX 295 will be quite a bit (more or less 31%) more effective at anisotropic filtering than the Radeon HD 6950. (explain)| GeForce GTX 295 |
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92160 Mtexels/sec |
| Radeon HD 6950 |
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70400 Mtexels/sec |
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Pixel Rate
If using a high resolution is important to you, then the GeForce GTX 295 is a better choice, and very much so. (explain)| GeForce GTX 295 |
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32256 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.
One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.
Price Comparison
GeForce GTX 295Amazon.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 | GeForce GTX 295 | Radeon HD 6950 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | January 8, 2009 | December 2010 |
| Code Name | G200b | Cayman Pro |
| Memory | 896 MB (x2) | 1024 MB |
| Core Speed | 576 MHz (x2) | 800 MHz |
| Memory Speed | 1998 MHz (x2) | 5000 MHz |
| Power (Max TDP) | 289 watts | 200 watts |
| Bandwidth | 223776 MB/sec | 160000 MB/sec |
| Texel Rate | 92160 Mtexels/sec | 70400 Mtexels/sec |
| Pixel Rate | 32256 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 240 (x2) | 1408 |
| Texture Mapping Units | 80 (x2) | 88 |
| Render Output Units | 28 (x2) | 32 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 448-bit (x2) | 256-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 1400 million | 2640 million |
| Bus | PCIe x16 2.0 | PCIe x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs 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 is also dependant 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.
GeForce GTX 295Amazon.com
Check prices at:
|
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.
|
Comments
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