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Radeon HD 5670 vs Radeon HD 7850
Intro
The Radeon HD 5670 has a GPU clock speed of 775 MHz, and the 1024 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also is made up of 400(80x5) Stream Processors, 20 TAUs, and 8 ROPs.Compare those specifications to the Radeon HD 7850, which comes with GPU core speed of 860 MHz, and 2048 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is made up of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation 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
Performance-wise, the Radeon HD 7850 should theoretically be quite a bit better than the Radeon HD 5670 overall. (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 a lot (about 255%) more effective at AF 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 should be much (about 344%) more effective at FSAA than the Radeon HD 5670, and capable of handling 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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.
Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.
Radeon HD 5670Amazon.com
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Radeon HD 7850Amazon.com
|
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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