GeForce GT 320 vs GeForce GTX 560

Intro

Compare that to the GeForce GTX 560, which makes use of a 40 nm design. nVidia has set the core frequency at 810 MHz. The GDDR5 memory is set to run at a frequency of 1001 MHz on this model. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
GeForce GTX 560		150 Watts
	Difference: 107 Watts (249%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 should theoretically be a lot better than the GeForce GT 320 overall. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 102848 (407%)

Texel Rate

The GeForce GTX 560 should be a lot (about 250%) better at anisotropic filtering than the GeForce GT 320. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 32400 (250%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 560 is superior to the GeForce GT 320, and very much so. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 21600 (500%)

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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core 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 output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.