GeForce GTX 460 (OEM) vs GeForce GTX 660 Ti

Intro

Compare those specs to the GeForce GTX 660 Ti, which features clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1344 SPUs as well as 112 TAUs and 24 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX 660 Ti will be 32% faster than the GeForce GTX 460 (OEM) overall, because of its higher data rate. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 35200 (32%)

Texel Rate

The GeForce GTX 660 Ti will be a lot (about 182%) more effective at anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 66080 (182%)

Pixel Rate

The GeForce GTX 660 Ti will be a small bit (about 6%) better at AA than the GeForce GTX 460 (OEM), and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 1160 (6%)

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

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. 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 lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.