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GeForce GTX 460 vs GeForce GTX 660
Intro
The GeForce GTX 460 comes with a clock frequency of 675 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 192-bit memory bus, and uses a 40 nm design. It is made up of 336 SPUs, 56 Texture Address Units, and 24 Raster Operation Units.Compare all that to the GeForce GTX 660, which comes with a clock speed of 980 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 192-bit bus, and makes use of a 28 nm design. It is made up of 960 SPUs, 80 TAUs, and 24 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 660 |
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140 Watts |
| GeForce GTX 460 |
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150 Watts |
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Memory Bandwidth
In theory, the GeForce GTX 660 should be a lot faster than the GeForce GTX 460 in general. (explain)
| GeForce GTX 660 |
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144192 MB/sec |
| GeForce GTX 460 |
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86400 MB/sec |
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Texel Rate
The GeForce GTX 660 should be quite a bit (about 107%) faster with regards to anisotropic filtering than the GeForce GTX 460. (explain)| GeForce GTX 660 |
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78400 Mtexels/sec |
| GeForce GTX 460 |
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37800 Mtexels/sec |
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Pixel Rate
The GeForce GTX 660 will be quite a bit (about 45%) better at AA than the GeForce GTX 460, and also will be able to handle higher screen resolutions without losing too much performance. (explain)| GeForce GTX 660 |
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23520 Mpixels/sec |
| GeForce GTX 460 |
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16200 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
Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
GeForce GTX 460Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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GeForce GTX 660Amazon.com
Other US-based stores
Amazon.co.uk
Amazon.de
Amazon.fr
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Specifications
| Model | GeForce GTX 460 | GeForce GTX 660 |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2010 | September 2012 |
| Code Name | GF104 | GK106 |
| Fab Process | 40 nm | 28 nm |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| Memory | 768 MB | 2048 MB |
| Core Speed | 675 MHz | 980 MHz |
| Shader Speed | 1350 MHz | 980 MHz |
| Memory Speed | 900 MHz (3600 MHz effective) | 1502 MHz (6008 MHz effective) |
| Unified Shaders | 336 | 960 |
| Texture Mapping Units | 56 | 80 |
| Render Output Units | 24 | 24 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 192-bit | 192-bit |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.3 |
| Power (Max TDP) | 150 watts | 140 watts |
| Shader Model | 5.0 | 5.0 |
| Bandwidth | 86400 MB/sec | 144192 MB/sec |
| Texel Rate | 37800 Mtexels/sec | 78400 Mtexels/sec |
| Pixel Rate | 16200 Mpixels/sec | 23520 Mpixels/sec |
Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.
Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.
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