GeForce GTX 460 2GB vs GeForce GTX 570

Intro

Compare all of that to the GeForce GTX 570, which uses a 40 nm design. nVidia has set the core frequency at 732 MHz. The GDDR5 RAM is set to run at a speed of 950 MHz on this model. It features 480 SPUs along with 60 TAUs 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 should in theory be quite a bit faster than the GeForce GTX 460 2GB in general. (explain)

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

Texel Rate

The GeForce GTX 570 will be a little bit (more or less 16%) faster with regards to anisotropic 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 should be a lot (about 36%) better at AA than the GeForce GTX 460 2GB, and also will be capable of handling 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 data (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.