GeForce GT 220 GDDR3 vs GeForce GTX 560

Intro

Compare that to the GeForce GTX 560, which features a GPU core clock speed of 810 MHz, and 1024 MB of GDDR5 RAM set to run at 1001 MHz through a 256-bit bus. It also is comprised of 336 SPUs, 56 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 220 GDDR3		58 Watts
GeForce GTX 560		150 Watts
	Difference: 92 Watts (159%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 should be quite a bit faster than the GeForce GT 220 GDDR3 in general. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GT 220 GDDR3		32384 MB/sec
	Difference: 95744 (296%)

Texel Rate

The GeForce GTX 560 should be quite a bit (more or less 354%) more effective at anisotropic filtering than the GeForce GT 220 GDDR3. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce GT 220 GDDR3		10000 Mtexels/sec
	Difference: 35360 (354%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 is a better choice, by far. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GT 220 GDDR3		5000 Mpixels/sec
	Difference: 20920 (418%)

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 information (counted in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling 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 could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.