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GeForce GTX 285 1GB vs Radeon HD 6850
Intro
The GeForce GTX 285 1GB has a GPU core speed of 648 MHz, and the 1024 MB of GDDR3 memory is set to run at 1242 MHz through a 512-bit bus. It also features 240 Stream Processors, 80 Texture Address Units, and 32 ROPs.Compare those specs to the Radeon HD 6850, which has 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 Stream Processors, 48 TAUs, and 32 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6850 |
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127 Watts |
| GeForce GTX 285 1GB |
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204 Watts |
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Memory Bandwidth
The GeForce GTX 285 1GB should theoretically perform quite a bit faster than the Radeon HD 6850 in general. (explain)
| GeForce GTX 285 1GB |
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158976 MB/sec |
| Radeon HD 6850 |
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128000 MB/sec |
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Texel Rate
The GeForce GTX 285 1GB will be a lot (about 39%) better at texture filtering than the Radeon HD 6850. (explain)| GeForce GTX 285 1GB |
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51840 Mtexels/sec |
| Radeon HD 6850 |
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37200 Mtexels/sec |
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Pixel Rate
If using a high screen resolution is important to you, then the Radeon HD 6850 is superior to the GeForce GTX 285 1GB, though not by far. (explain)| Radeon HD 6850 |
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24800 Mpixels/sec |
| GeForce GTX 285 1GB |
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20736 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
GeForce GTX 285 1GBAmazon.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 | GeForce GTX 285 1GB | Radeon HD 6850 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | January 15, 2009 | October 2010 |
| Code Name | G200b | Barts Pro |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 648 MHz | 775 MHz |
| Memory Speed | 2484 MHz | 4000 MHz |
| Power (Max TDP) | 204 watts | 127 watts |
| Bandwidth | 158976 MB/sec | 128000 MB/sec |
| Texel Rate | 51840 Mtexels/sec | 37200 Mtexels/sec |
| Pixel Rate | 20736 Mpixels/sec | 24800 Mpixels/sec |
| Unified Shaders | 240 | 960 |
| Texture Mapping Units | 80 | 48 |
| Render Output Units | 32 | 32 |
| Bus Type | GDDR3 | GDDR5 |
| Bus Width | 512-bit | 256-bit |
| Fab Process | 55 nm | 40 nm |
| Transistors | 1400 million | 1700 million |
| Bus | PCIe x16 2.0 | PCIe x16 |
| DirectX Version | DirectX 10 | DirectX 11 |
| OpenGL Version | OpenGL 3.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce GTX 285 1GBAmazon.com
Check prices at:
|
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.
|
Comments
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