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GeForce GTX 580 3GB vs Radeon HD 6950
Intro
The GeForce GTX 580 3GB comes with clock speeds of 772 MHz on the GPU, and 1002 MHz on the 3072 MB of GDDR5 memory. It features 512 SPUs along with 64 TAUs and 48 Rasterization Operator Units.Compare those specs to the Radeon HD 6950, which has a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 1408 SPUs, 88 TAUs, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6950 |
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200 Watts |
| GeForce GTX 580 3GB |
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244 Watts |
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Memory Bandwidth
Theoretically speaking, the GeForce GTX 580 3GB should be 20% faster than the Radeon HD 6950 in general, due to its greater bandwidth. (explain)
| GeForce GTX 580 3GB |
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192384 MB/sec |
| Radeon HD 6950 |
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160000 MB/sec |
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Texel Rate
The Radeon HD 6950 should be much (more or less 42%) faster with regards to anisotropic filtering than the GeForce GTX 580 3GB. (explain)| Radeon HD 6950 |
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70400 Mtexels/sec |
| GeForce GTX 580 3GB |
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49408 Mtexels/sec |
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Pixel Rate
The GeForce GTX 580 3GB is quite a bit (about 45%) more effective at FSAA than the Radeon HD 6950, and also should be able to handle higher screen resolutions better. (explain)| GeForce GTX 580 3GB |
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37056 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTX 580 3GBAmazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6950Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 580 3GB | Radeon HD 6950 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | November 2010 | December 2010 |
| Code Name | GF110 | Cayman Pro |
| Fab Process | 40 nm | 40 nm |
| Bus | PCIe x16 | PCIe x16 |
| Memory | 3072 MB | 1024 MB |
| Core Speed | 772 MHz | 800 MHz |
| Shader Speed | 1544 MHz | (N/A) MHz |
| Memory Speed | 1002 MHz | 1250 MHz |
| Unified Shaders | 512 | 1408 |
| Texture Mapping Units | 64 | 88 |
| Render Output Units | 48 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 384-bit | 256-bit |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
| Power (Max TDP) | 244 watts | 200 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 192384 MB/sec | 160000 MB/sec |
| Texel Rate | 49408 Mtexels/sec | 70400 Mtexels/sec |
| Pixel Rate | 37056 Mpixels/sec | 25600 Mpixels/sec |
Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.
Comments
One Response to “GeForce GTX 580 3GB vs Radeon HD 6950”Nice Comparisson but What about Physics, 3D Capabilities are those only from NVidia I would be nice to have the features table including al of these stuffs
Thanks