GeForce 8800 GTS (G92) vs GeForce GTX 560

Intro

Compare those specifications to the GeForce GTX 560, which features a GPU core clock speed of 810 MHz, and 1024 MB of GDDR5 memory running at 1001 MHz through a 256-bit bus. It also features 336 SPUs, 56 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce GTX 560		150 Watts
	Difference: 15 Watts (11%)

Memory Bandwidth

In theory, the GeForce GTX 560 should perform much faster than the GeForce 8800 GTS (G92) overall. (explain)

GeForce GTX 560		128128 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 66048 (106%)

Texel Rate

The GeForce GTX 560 will be just a bit (approximately 9%) faster with regards to AF than the GeForce 8800 GTS (G92). (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 3760 (9%)

Pixel Rate

The GeForce GTX 560 should be a lot (about 149%) faster with regards to AA than the GeForce 8800 GTS (G92), and should be capable of handling higher resolutions better. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 15520 (149%)

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 max amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the 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 maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.