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Radeon HD 6670 (OEM) vs Radeon HD 6850
Intro
The Radeon HD 6670 (OEM) makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory works at a frequency of 1000 MHz on this model. It features 480 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.Compare those specs to the Radeon HD 6850, which features a GPU core clock speed of 775 MHz, and 1024 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is comprised of 960 SPUs, 48 TAUs, and 32 Raster Operation Units.
Benchmarks
These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.
3DMark Fire Strike Graphics Score
| Radeon HD 6850 |
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2395 points |
| Radeon HD 6670 (OEM) |
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1120 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6670 (OEM) |
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63 Watts |
| Radeon HD 6850 |
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127 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 6850 will be 100% quicker than the Radeon HD 6670 (OEM) overall, due to its greater data rate. (explain)
| Radeon HD 6850 |
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128000 MB/sec |
| Radeon HD 6670 (OEM) |
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64000 MB/sec |
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Texel Rate
The Radeon HD 6850 will be much (more or less 94%) more effective at AF than the Radeon HD 6670 (OEM). (explain)| Radeon HD 6850 |
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37200 Mtexels/sec |
| Radeon HD 6670 (OEM) |
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19200 Mtexels/sec |
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Pixel Rate
The Radeon HD 6850 should be a lot (more or less 288%) better at anti-aliasing than the Radeon HD 6670 (OEM), and capable of handling higher resolutions without slowing down too much. (explain)| Radeon HD 6850 |
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24800 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 6670 (OEM)Amazon.com
Check prices at:
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Radeon HD 6850Amazon.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 6670 (OEM) | Radeon HD 6850 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 2011 | October 2010 |
| Code Name | Turks | Barts Pro |
| Memory | 512 MB | 1024 MB |
| Core Speed | 800 MHz | 775 MHz |
| Memory Speed | 4000 MHz | 4000 MHz |
| Power (Max TDP) | 63 watts | 127 watts |
| Bandwidth | 64000 MB/sec | 128000 MB/sec |
| Texel Rate | 19200 Mtexels/sec | 37200 Mtexels/sec |
| Pixel Rate | 6400 Mpixels/sec | 24800 Mpixels/sec |
| Unified Shaders | 480 | 960 |
| Texture Mapping Units | 24 | 48 |
| Render Output Units | 8 | 32 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 128-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 715 million | 1700 million |
| Bus | PCIe 2.1 x16 | PCIe x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
Radeon HD 6670 (OEM)Amazon.com
Check prices at:
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Radeon HD 6850Amazon.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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Comments
2 Responses to “Radeon HD 6670 (OEM) vs Radeon HD 6850”Why on earth is HP using that crummy chip in their $2000 3d touchsmart? What a rip off.
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