GeForce GTX 460 (OEM) vs GeForce GTX 660 Ti

Intro

Compare that to the GeForce GTX 660 Ti, which features a clock frequency of 915 MHz and a GDDR5 memory frequency of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 28 nm design. It features 1344 SPUs, 112 Texture Address Units, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce GTX 660 Ti should be quite a bit faster than the GeForce GTX 460 (OEM) in general. (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 should be much (approximately 182%) better at AF 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 is a bit (more or less 6%) more effective at full screen anti-aliasing than the GeForce GTX 460 (OEM), and also capable of handling higher screen resolutions without losing too much performance. (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 (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the 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 maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.