GeForce GTX 570 vs GeForce GTX 650 Ti 2GB

Intro

Compare those specifications to the GeForce GTX 650 Ti 2GB, which has a clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is made up of 768 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce GTX 570		219 Watts
	Difference: 109 Watts (99%)

Memory Bandwidth

In theory, the GeForce GTX 570 is 76% quicker than the GeForce GTX 650 Ti 2GB overall, because of its greater bandwidth. (explain)

GeForce GTX 570		152000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 65600 (76%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be a lot (approximately 35%) more effective at anisotropic filtering than the GeForce GTX 570. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 15472 (35%)

Pixel Rate

The GeForce GTX 570 should be a lot (more or less 97%) more effective at full screen anti-aliasing than the GeForce GTX 650 Ti 2GB, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 14432 (97%)

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 (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.