GeForce GTX 570 vs GeForce GTX 580 3GB

Intro

Compare that to the GeForce GTX 580 3GB, which comes with a GPU core clock speed of 772 MHz, and 3072 MB of GDDR5 RAM running at 1002 MHz through a 384-bit bus. It also is made up of 512 Stream Processors, 64 TAUs, and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 570		219 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 25 Watts (11%)

Memory Bandwidth

The GeForce GTX 580 3GB, in theory, should be much faster than the GeForce GTX 570 overall. (explain)

GeForce GTX 580 3GB		192384 MB/sec
GeForce GTX 570		152000 MB/sec
	Difference: 40384 (27%)

Texel Rate

The GeForce GTX 580 3GB is a small bit (more or less 12%) better at anisotropic filtering than the GeForce GTX 570. (explain)

GeForce GTX 580 3GB		49408 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 5488 (12%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 580 3GB is a better choice, and very much so. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
GeForce GTX 570		29280 Mpixels/sec
	Difference: 7776 (27%)

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 transported past the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.