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GeForce GTX 460 1GB vs Radeon HD 6790
Intro
The GeForce GTX 460 1GB features a GPU clock speed of 675 MHz, and the 1024 MB of GDDR5 RAM runs at 900 MHz through a 256-bit bus. It also is comprised of 336 Stream Processors, 56 Texture Address Units, and 32 Raster Operation Units.Compare all that to the Radeon HD 6790, which has GPU clock speed of 840 MHz, and 1024 MB of GDDR5 RAM set to run at 1050 MHz through a 256-bit bus. It also features 800 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 6790 |
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150 Watts |
| GeForce GTX 460 1GB |
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160 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 6790 should be 17% faster than the GeForce GTX 460 1GB in general, because of its greater data rate. (explain)
| Radeon HD 6790 |
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134400 MB/sec |
| GeForce GTX 460 1GB |
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115200 MB/sec |
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Texel Rate
The GeForce GTX 460 1GB is a little bit (more or less 13%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)| GeForce GTX 460 1GB |
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37800 Mtexels/sec |
| Radeon HD 6790 |
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33600 Mtexels/sec |
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Pixel Rate
If using lots of anti-aliasing is important to you, then the GeForce GTX 460 1GB is a better choice, and very much so. (explain)| GeForce GTX 460 1GB |
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21600 Mpixels/sec |
| Radeon HD 6790 |
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13440 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 460 1GBAmazon.com
Check prices at:
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Radeon HD 6790Amazon.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 460 1GB | Radeon HD 6790 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | July 2010 | April 2011 |
| Code Name | GF104 | Barts LE |
| Memory | 1024 MB | 1024 MB |
| Core Speed | 675 MHz | 840 MHz |
| Memory Speed | 3600 MHz | 4200 MHz |
| Power (Max TDP) | 160 watts | 150 watts |
| Bandwidth | 115200 MB/sec | 134400 MB/sec |
| Texel Rate | 37800 Mtexels/sec | 33600 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 13440 Mpixels/sec |
| Unified Shaders | 336 | 800 |
| Texture Mapping Units | 56 | 40 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 256-bit |
| Fab Process | 40 nm | 40 nm |
| Transistors | 1950 million | 1700 million |
| Bus | PCIe x16 | PCIe 2.1 x16 |
| DirectX Version | DirectX 11 | DirectX 11 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.1 |
Memory Bandwidth: Bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.
GeForce GTX 460 1GBAmazon.com
Check prices at:
|
Radeon HD 6790Amazon.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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