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Radeon HD 5670 vs Radeon HD 7850
Intro
The Radeon HD 5670 has a GPU core clock speed of 775 MHz, and the 1024 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also is comprised of 400(80x5) SPUs, 20 TAUs, and 8 ROPs.Compare that to the Radeon HD 7850, which uses a 28 nm design. AMD has clocked the core speed at 860 MHz. The GDDR5 RAM runs at a speed of 1200 MHz on this specific model. It features 1024 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5670 |
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61 Watts |
| Radeon HD 7850 |
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130 Watts |
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Memory Bandwidth
The Radeon HD 7850, in theory, should perform a lot faster than the Radeon HD 5670 in general. (explain)
| Radeon HD 7850 |
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153600 MB/sec |
| Radeon HD 5670 |
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64000 MB/sec |
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Texel Rate
The Radeon HD 7850 is much (approximately 255%) faster with regards to anisotropic filtering than the Radeon HD 5670. (explain)| Radeon HD 7850 |
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55040 Mtexels/sec |
| Radeon HD 5670 |
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15500 Mtexels/sec |
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Pixel Rate
The Radeon HD 7850 is much (about 344%) faster with regards to anti-aliasing than the Radeon HD 5670, and able to handle higher resolutions more effectively. (explain)| Radeon HD 7850 |
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27520 Mpixels/sec |
| Radeon HD 5670 |
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6200 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
Radeon HD 5670Amazon.com
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Radeon HD 7850Amazon.com
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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 | Radeon HD 5670 | Radeon HD 7850 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | January 14, 2010 | March 2012 |
| Code Name | Redwood XT | Pitcairn Pro |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 775 MHz | 860 MHz |
| Memory Speed | 4000 MHz | 4800 MHz |
| Power (Max TDP) | 61 watts | 130 watts |
| Bandwidth | 64000 MB/sec | 153600 MB/sec |
| Texel Rate | 15500 Mtexels/sec | 55040 Mtexels/sec |
| Pixel Rate | 6200 Mpixels/sec | 27520 Mpixels/sec |
| Unified Shaders | 400(80x5) | 1024 |
| Texture Mapping Units | 20 | 64 |
| Render Output Units | 8 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 627 million | 2800 million |
| Bus | PCIe 2.1 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.2 |
Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, 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 graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs 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 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 maximum fill rate.
Radeon HD 5670Amazon.com
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Radeon HD 7850Amazon.com
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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.
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