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Radeon HD 5870 vs Radeon HD 6670 (OEM)
Intro
The Radeon HD 5870 uses a 40 nm design. AMD has clocked the core frequency at 850 MHz. The GDDR5 memory runs at a frequency of 1200 MHz on this particular card. It features 1600(320x5) SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.Compare all of that to the Radeon HD 6670 (OEM), which features a core clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It features 480 SPUs, 24 Texture Address Units, and 8 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) |
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63 Watts |
| Radeon HD 5870 |
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188 Watts |
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Memory Bandwidth
In theory, the Radeon HD 5870 will be 140% quicker than the Radeon HD 6670 (OEM) in general, because of its greater data rate. (explain)
| Radeon HD 5870 |
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153600 MB/sec |
| Radeon HD 6670 (OEM) |
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64000 MB/sec |
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Texel Rate
The Radeon HD 5870 is much (approximately 254%) better at anisotropic filtering than the Radeon HD 6670 (OEM). (explain)| Radeon HD 5870 |
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68000 Mtexels/sec |
| Radeon HD 6670 (OEM) |
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19200 Mtexels/sec |
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Pixel Rate
If running with high levels of AA is important to you, then the Radeon HD 5870 is the winner, by far. (explain)| Radeon HD 5870 |
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27200 Mpixels/sec |
| Radeon HD 6670 (OEM) |
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6400 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 5870Amazon.com
Check prices at:
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Radeon HD 6670 (OEM)Amazon.com
Check prices at:
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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 5870 | Radeon HD 6670 (OEM) |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | September 23, 2009 | February 2011 |
| Code Name | Cypress XT | Turks |
| Memory | 1024 MB | 512 MB |
| Core Speed | 850 MHz | 800 MHz |
| Memory Speed | 4800 MHz | 4000 MHz |
| Power (Max TDP) | 188 watts | 63 watts |
| Bandwidth | 153600 MB/sec | 64000 MB/sec |
| Texel Rate | 68000 Mtexels/sec | 19200 Mtexels/sec |
| Pixel Rate | 27200 Mpixels/sec | 6400 Mpixels/sec |
| Unified Shaders | 1600(320x5) | 480 |
| Texture Mapping Units | 80 | 24 |
| Render Output Units | 32 | 8 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 2154 million | 715 million |
| Bus | PCIe 2.1 x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.1 |
Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved 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 RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total 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 in a second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.
Radeon HD 5870Amazon.com
Check prices at:
|
Radeon HD 6670 (OEM)Amazon.com
Check prices at:
|
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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