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GeForce GTX 460 1GB vs Radeon HD 6790
Intro
The GeForce GTX 460 1GB uses a 40 nm design. nVidia has set the core speed at 675 MHz. The GDDR5 RAM runs at a speed of 900 MHz on this particular model. It features 336 SPUs along with 56 Texture Address Units and 32 ROPs.Compare all of that to the Radeon HD 6790, which has a core clock frequency of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 800 SPUs, 40 TAUs, 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
In theory, the Radeon HD 6790 will be 17% quicker than the GeForce GTX 460 1GB in general, because of its greater bandwidth. (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 should be a little bit (about 13%) better at texture 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
The GeForce GTX 460 1GB should be a lot (about 61%) better at full screen anti-aliasing than the Radeon HD 6790, and also should be capable of handling higher screen resolutions better. (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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach 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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