GeForce GTX 460 2GB vs GeForce GTX 560

Intro

Compare all that to the GeForce GTX 560, which comes with a core clock speed of 810 MHz and a GDDR5 memory frequency of 1001 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.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

The GeForce GTX 560 should theoretically be a bit faster than the GeForce GTX 460 2GB overall. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 12928 (11%)

Texel Rate

The GeForce GTX 560 should be a small bit (approximately 20%) faster with regards to texture filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 7560 (20%)

Pixel Rate

The GeForce GTX 560 should be a bit (approximately 20%) better at FSAA than the GeForce GTX 460 2GB, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GTX 460 2GB		21600 Mpixels/sec
	Difference: 4320 (20%)

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 information (measured in MB per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

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