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GeForce GTX 275 vs Radeon HD 4870 X2
Intro
The GeForce GTX 275 comes with core speeds of 633 MHz on the GPU, and 1134 MHz on the 896 MB of GDDR3 memory. It features 240 SPUs along with 80 Texture Address Units and 28 ROPs.Compare that to the Radeon HD 4870 X2, which comes with core speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 RAM. It features 800(160x5) SPUs along with 40 TAUs and 16 ROPs.
Avatar
| Settings: | Ultra High Quality |
| AA: | 8x |
| AF: | none |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 4870 X2 |
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64 FPS |
| GeForce GTX 275 |
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38 FPS |
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Battlefield Bad Company 2
| Settings: | High Quality |
| AA: | 4x |
| AF: | 8x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 4870 X2 |
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60 FPS |
| GeForce GTX 275 |
|
39 FPS |
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Left4Dead 2
| Settings: | Very High |
| AA: | 8x |
| AF: | 16x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 4870 X2 |
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134 FPS |
| GeForce GTX 275 |
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85 FPS |
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Supreme Commander 2
| Settings: | High |
| AA: | 8x |
| AF: | 16x |
| Resolution: | 1920x1200 |
| Test Machine: | Tom's Hardware Test Machine (Source) |
| Radeon HD 4870 X2 |
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99 FPS |
| GeForce GTX 275 |
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38 FPS |
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Radeon HD 4870 X2 wins
(Based entirely on the benchmarks listed above)
When combining all game benchmark scores on this page together, the Radeon HD 4870 X2 wins overall, by 157 FPS. Please note that we do not have the results of every benchmark ever done for these cards, so the results may differ wildly in different games.
| Radeon HD 4870 X2 |
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357 FPS |
| GeForce GTX 275 |
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200 FPS |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 275 |
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219 Watts |
| Radeon HD 4870 X2 |
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350 Watts |
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Memory Bandwidth
Performance-wise, the Radeon HD 4870 X2 should in theory be much superior to the GeForce GTX 275 overall. (explain)
| Radeon HD 4870 X2 |
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230400 MB/sec |
| GeForce GTX 275 |
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127008 MB/sec |
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Texel Rate
The Radeon HD 4870 X2 should be a little bit (approximately 18%) more effective at AF than the GeForce GTX 275. (explain)| Radeon HD 4870 X2 |
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60000 Mtexels/sec |
| GeForce GTX 275 |
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50640 Mtexels/sec |
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Pixel Rate
If running with lots of anti-aliasing is important to you, then the Radeon HD 4870 X2 is the winner, by a large margin. (explain)| Radeon HD 4870 X2 |
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24000 Mpixels/sec |
| GeForce GTX 275 |
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17724 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
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 275Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 4870 X2Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 275 | Radeon HD 4870 X2 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | April 9, 2009 | Aug 12, 2008 |
| Code Name | G200b | R700 |
| Fab Process | 55 nm | 55 nm |
| Bus | PCIe x16 2.0 | PCIe 2.0 x16 (PCIe bridge) |
| Memory | 896 MB | 1024 MB (x2) |
| Core Speed | 633 MHz | 750 MHz (x2) |
| Shader Speed | 1404 MHz | (N/A) MHz (x2) |
| Memory Speed | 1134 MHz | 900 MHz (x2) |
| Unified Shaders | 240 | 800(160x5) (x2) |
| Texture Mapping Units | 80 | 40 (x2) |
| Render Output Units | 28 | 16 (x2) |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 448-bit | 256-bit (x2) |
| DirectX Version | DirectX 10 | DirectX 10.1 |
| OpenGL Version | OpenGL 3.1 | OpenGL 3.0 |
| Power (Max TDP) | 219 watts | 350 watts |
| Shader Model | 4.0 | 4.1 |
| Bandwidth | 127008 MB/sec | 230400 MB/sec |
| Texel Rate | 50640 Mtexels/sec | 60000 Mtexels/sec |
| Pixel Rate | 17724 Mpixels/sec | 24000 Mpixels/sec |
Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total 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 in a second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.
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