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GeForce GTX 460 1GB vs GeForce GTX 660 Ti
Intro
The GeForce GTX 460 1GB makes use of a 40 nm design. nVidia has clocked the core speed at 675 MHz. The GDDR5 RAM works at a frequency of 900 MHz on this model. It features 336 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.Compare those specs to the GeForce GTX 660 Ti, which uses a 28 nm design. nVidia has set the core speed at 915 MHz. The GDDR5 RAM works at a speed of 1500 MHz on this specific model. It features 1344 SPUs as well as 112 TAUs and 24 Rasterization Operator Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| GeForce GTX 660 Ti |
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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 GeForce GTX 660 Ti is 25% quicker than the GeForce GTX 460 1GB overall, due to its greater bandwidth. (explain)
| GeForce GTX 660 Ti |
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144000 MB/sec |
| GeForce GTX 460 1GB |
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115200 MB/sec |
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Texel Rate
The GeForce GTX 660 Ti should be quite a bit (more or less 171%) more effective at AF than the GeForce GTX 460 1GB. (explain)| GeForce GTX 660 Ti |
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102480 Mtexels/sec |
| GeForce GTX 460 1GB |
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37800 Mtexels/sec |
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Pixel Rate
If using high levels of AA is important to you, then the GeForce GTX 660 Ti is the winner, not by a very large margin though. (explain)| GeForce GTX 660 Ti |
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21960 Mpixels/sec |
| GeForce GTX 460 1GB |
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21600 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
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GeForce GTX 660 TiAmazon.com
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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 | GeForce GTX 660 Ti |
|---|---|---|
| Manufacturer | nVidia | nVidia |
| Year | July 2010 | August 2012 |
| Code Name | GF104 | GK104 |
| Memory | 1024 MB | 2048 MB |
| Core Speed | 675 MHz | 915 MHz |
| Memory Speed | 3600 MHz | 6000 MHz |
| Power (Max TDP) | 160 watts | 150 watts |
| Bandwidth | 115200 MB/sec | 144000 MB/sec |
| Texel Rate | 37800 Mtexels/sec | 102480 Mtexels/sec |
| Pixel Rate | 21600 Mpixels/sec | 21960 Mpixels/sec |
| Unified Shaders | 336 | 1344 |
| Texture Mapping Units | 56 | 112 |
| Render Output Units | 32 | 24 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 192-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 1950 million | 3540 million |
| Bus | PCIe x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.0 |
| OpenGL Version | OpenGL 4.1 | OpenGL 4.3 |
Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.
GeForce GTX 460 1GBAmazon.com
Check prices at:
|
GeForce GTX 660 TiAmazon.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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