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GeForce GTX 460 2GB vs GeForce GTX 660

Intro

The GeForce GTX 460 2GB has a clock speed of 675 MHz and a GDDR5 memory speed of 900 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It features 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the GeForce GTX 660, which has core clock speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 960 SPUs along with 80 Texture Address Units and 24 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
GeForce GTX 460 2GB 160 Watts
Difference: 20 Watts (14%)

Memory Bandwidth

In theory, the GeForce GTX 660 should be 25% faster than the GeForce GTX 460 2GB overall, due to its greater data rate. (explain)

GeForce GTX 660 144192 MB/sec
GeForce GTX 460 2GB 115200 MB/sec
Difference: 28992 (25%)

Texel Rate

The GeForce GTX 660 will be much (more or less 107%) faster with regards to texture filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce GTX 460 2GB 37800 Mtexels/sec
Difference: 40600 (107%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 660 is a better choice, but not by far. (explain)

GeForce GTX 660 23520 Mpixels/sec
GeForce GTX 460 2GB 21600 Mpixels/sec
Difference: 1920 (9%)

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

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GeForce GTX 460 2GB

Amazon.com

Check prices at:

GeForce GTX 660

Amazon.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.

Specifications

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Model GeForce GTX 460 2GB GeForce GTX 660
Manufacturer nVidia nVidia
Year July 2010 September 2012
Code Name GF104 GK106
Memory 2048 MB 2048 MB
Core Speed 675 MHz 980 MHz
Memory Speed 3600 MHz 6008 MHz
Power (Max TDP) 160 watts 140 watts
Bandwidth 115200 MB/sec 144192 MB/sec
Texel Rate 37800 Mtexels/sec 78400 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 23520 Mpixels/sec
Unified Shaders 336 960
Texture Mapping Units 56 80
Render Output Units 32 24
Bus Type GDDR5 GDDR5
Bus Width 256-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2540 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 largest amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 processed in one second. This is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 460 2GB

Amazon.com

Check prices at:

GeForce GTX 660

Amazon.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.

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