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GeForce GTX 580 vs Radeon HD 7950
Intro
The GeForce GTX 580 uses a 40 nm design. nVidia has clocked the core speed at 772 MHz. The GDDR5 RAM works at a frequency of 1002 MHz on this particular card. It features 512 SPUs as well as 64 Texture Address Units and 48 ROPs.Compare all of that to the Radeon HD 7950, which comes with GPU clock speed of 800 MHz, and 1536 MB of GDDR5 memory running at 1250 MHz through a 384-bit bus. It also is made up of 1792 Stream Processors, 112 Texture Address Units, and 32 Raster Operation Units.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
| Radeon HD 7950 |
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7731 points |
| GeForce GTX 580 |
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4956 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7950 |
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200 Watts |
| GeForce GTX 580 |
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244 Watts |
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Memory Bandwidth
The Radeon HD 7950 should theoretically be much faster than the GeForce GTX 580 in general. (explain)
| Radeon HD 7950 |
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240000 MB/sec |
| GeForce GTX 580 |
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192384 MB/sec |
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Texel Rate
The Radeon HD 7950 is a lot (approximately 81%) faster with regards to anisotropic filtering than the GeForce GTX 580. (explain)| Radeon HD 7950 |
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89600 Mtexels/sec |
| GeForce GTX 580 |
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49408 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the GeForce GTX 580 is the winner, and very much so. (explain)| GeForce GTX 580 |
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37056 Mpixels/sec |
| Radeon HD 7950 |
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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
GeForce GTX 580Amazon.com
Check prices at:
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Radeon HD 7950Amazon.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 580 | Radeon HD 7950 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | November 2010 | January 2012 |
| Code Name | GF110 | Tahiti Pro |
| Memory | 1536 MB | 1536 MB |
| Core Speed | 772 MHz | 800 MHz |
| Memory Speed | 4008 MHz | 5000 MHz |
| Power (Max TDP) | 244 watts | 200 watts |
| Bandwidth | 192384 MB/sec | 240000 MB/sec |
| Texel Rate | 49408 Mtexels/sec | 89600 Mtexels/sec |
| Pixel Rate | 37056 Mpixels/sec | 25600 Mpixels/sec |
| Unified Shaders | 512 | 1792 |
| Texture Mapping Units | 64 | 112 |
| Render Output Units | 48 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 384-bit | 384-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 3000 million | 4313 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 information (measured in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher 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 most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.
GeForce GTX 580Amazon.com
Check prices at:
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Radeon HD 7950Amazon.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
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