GeForce GTX 460 2GB vs GeForce GTX 560

Intro

Compare all of that to the GeForce GTX 560, which features a clock speed of 810 MHz and a GDDR5 memory speed of 1001 MHz. It also uses a 256-bit bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 TAUs, 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

Performance-wise, the GeForce GTX 560 should in theory be a bit better than the GeForce GTX 460 2GB in general. (explain)

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

Texel Rate

The GeForce GTX 560 will be a small bit (approximately 20%) more effective at 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 small bit (approximately 20%) better at AA than the GeForce GTX 460 2GB, and will be able to handle higher screen 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 max amount of information (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the card will be at 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 chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.