GeForce GTX 460 (OEM) vs GeForce GTX 570

Intro

Compare those specifications to the GeForce GTX 570, which features GPU clock speed of 732 MHz, and 1280 MB of GDDR5 RAM running at 950 MHz through a 320-bit bus. It also features 480 Stream Processors, 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 (OEM)		150 Watts
GeForce GTX 570		219 Watts
	Difference: 69 Watts (46%)

Memory Bandwidth

In theory, the GeForce GTX 570 will be 40% faster than the GeForce GTX 460 (OEM) overall, because of its greater bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTX 460 (OEM)		108800 MB/sec
	Difference: 43200 (40%)

Texel Rate

The GeForce GTX 570 should be much (about 21%) better at anisotropic filtering than the GeForce GTX 460 (OEM). (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 7520 (21%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 570 is the winner, and very much so. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTX 460 (OEM)		20800 Mpixels/sec
	Difference: 8480 (41%)

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 data (measured in MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the video 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 the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour 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.