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GeForce GTX 470 vs Radeon HD 6850
Intro
The GeForce GTX 470 has core speeds of 607 MHz on the GPU, and 837 MHz on the 1280 MB of GDDR5 RAM. It features 448 SPUs as well as 56 TAUs and 40 Rasterization Operator Units.Compare all of that to the Radeon HD 6850, which uses a 40 nm design. ATi has set the core frequency at 775 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this particular model. It features 960 SPUs as well as 48 Texture Address Units and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6850 |
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127 Watts |
| GeForce GTX 470 |
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215 Watts |
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Memory Bandwidth
Performance-wise, the GeForce GTX 470 should theoretically be a little bit better than the Radeon HD 6850 in general. (explain)
| GeForce GTX 470 |
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133920 MB/sec |
| Radeon HD 6850 |
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128000 MB/sec |
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Texel Rate
The Radeon HD 6850 will be just a bit (more or less 9%) more effective at AF than the GeForce GTX 470. (explain)| Radeon HD 6850 |
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37200 Mtexels/sec |
| GeForce GTX 470 |
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33992 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the Radeon HD 6850 is a better choice, though not by far. (explain)| Radeon HD 6850 |
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24800 Mpixels/sec |
| GeForce GTX 470 |
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24280 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 470Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Radeon HD 6850Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 470 | Radeon HD 6850 |
|---|---|---|
| Manufacturer | nVidia | ATi |
| Year | March 2010 | October 2010 |
| Code Name | GF100 | Barts Pro |
| Fab Process | 40 nm | 40 nm |
| Bus | PCIe x16 | PCIe x16 |
| Memory | 1280 MB | 1024 MB |
| Core Speed | 607 MHz | 775 MHz |
| Shader Speed | 1215 MHz | (N/A) MHz |
| Memory Speed | 837 MHz | 1000 MHz |
| Unified Shaders | 448 | 960 |
| Texture Mapping Units | 56 | 48 |
| Render Output Units | 40 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 320-bit | 256-bit |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
| Power (Max TDP) | 215 watts | 127 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 133920 MB/sec | 128000 MB/sec |
| Texel Rate | 33992 Mtexels/sec | 37200 Mtexels/sec |
| Pixel Rate | 24280 Mpixels/sec | 24800 Mpixels/sec |
Memory Bandwidth: Bandwidth is the max amount of information (in units of MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If 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 number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the 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 that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.
Comments
2 Responses to “GeForce GTX 470 vs Radeon HD 6850”[...] [...]
Radeon HD 6850 is better