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GeForce GTX 285 1GB vs Radeon HD 6850
Intro
The GeForce GTX 285 1GB comes with a GPU core speed of 648 MHz, and the 1024 MB of GDDR3 RAM runs at 1242 MHz through a 512-bit bus. It also is made up of 240 Stream Processors, 80 TAUs, and 32 Raster Operation Units.Compare those specifications to the Radeon HD 6850, which features GPU core speed of 775 MHz, and 1024 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also is made up of 960 SPUs, 48 Texture Address Units, and 32 Raster Operation Units.
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
Performance-wise, the GeForce GTX 285 1GB should in theory be quite a bit better than the Radeon HD 6850 overall. (explain)
| GeForce GTX 285 1GB |
|
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 (more or less 39%) more effective 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
The Radeon HD 6850 is just a bit (more or less 20%) faster with regards to FSAA than the GeForce GTX 285 1GB, and also able to handle higher screen resolutions more effectively. (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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better the texel rate, 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 maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines 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 quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max 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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