GeForce GTX 460 1GB vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which has a clock frequency of 732 MHz and a GDDR5 memory speed of 950 MHz. It also features a 320-bit bus, and makes use of a 40 nm design. It is comprised of 480 SPUs, 60 TAUs, and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 1GB		160 Watts
GeForce GTX 570		219 Watts
	Difference: 59 Watts (37%)

Memory Bandwidth

The GeForce GTX 570 should in theory perform much faster than the GeForce GTX 460 1GB overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTX 460 1GB		115200 MB/sec
	Difference: 36800 (32%)

Texel Rate

The GeForce GTX 570 is just a bit (approximately 16%) more effective at AF than the GeForce GTX 460 1GB. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 6120 (16%)

Pixel Rate

The GeForce GTX 570 should be quite a bit (about 36%) more effective at anti-aliasing than the GeForce GTX 460 1GB, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTX 460 1GB		21600 Mpixels/sec
	Difference: 7680 (36%)

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 largest amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.