GeForce GTX 460 (OEM) vs GeForce GTX 560

Intro

Compare that to the GeForce GTX 560, which has GPU clock speed of 810 MHz, and 1024 MB of GDDR5 memory running at 1001 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 TAUs, and 32 Raster Operation 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 560 should be 18% faster than the GeForce GTX 460 (OEM) in general, because of its greater bandwidth. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 19328 (18%)

Texel Rate

The GeForce GTX 560 should be much (more or less 25%) faster with regards to anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 8960 (25%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 560 is superior to the GeForce GTX 460 (OEM), by a large margin. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 5120 (25%)

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: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 most pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.