GeForce GTX 460 2GB vs GeForce GTX 570

Intro

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 2GB		160 Watts
GeForce GTX 570		219 Watts
	Difference: 59 Watts (37%)

Memory Bandwidth

The GeForce GTX 570, in theory, should be much faster than the GeForce GTX 460 2GB overall. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTX 460 2GB		115200 MB/sec
	Difference: 36800 (32%)

Texel Rate

The GeForce GTX 570 should be a bit (about 16%) faster with regards to texture filtering than the GeForce GTX 460 2GB. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GTX 460 2GB		37800 Mtexels/sec
	Difference: 6120 (16%)

Pixel Rate

The GeForce GTX 570 is much (more or less 36%) faster with regards to AA than the GeForce GTX 460 2GB, and will be able to handle higher resolutions while still performing well. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTX 460 2GB		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 max amount of information (in units of megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR type 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.