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Radeon HD 5670 vs Radeon HD 7850
Intro
The Radeon HD 5670 has core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 400(80x5) SPUs as well as 20 Texture Address Units and 8 ROPs.Compare that to the Radeon HD 7850, which features GPU core speed of 860 MHz, and 2048 MB of GDDR5 RAM set to run at 1200 MHz through a 256-bit bus. It also is made up of 1024 Stream Processors, 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 in theory be quite a bit better 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 quite a bit (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 is quite a bit (about 344%) faster with regards to AA than the Radeon HD 5670, and also able to handle higher screen resolutions without losing too much performance. (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 data (in units of MB per second) that can be transferred across the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max 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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