GeForce 8800 GTX vs GeForce GTX 560

Intro

Compare that to the GeForce GTX 560, which uses a 40 nm design. nVidia has set the core frequency at 810 MHz. The GDDR5 RAM is set to run at a speed of 1001 MHz on this specific 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 GTX 560		150 Watts
GeForce 8800 GTX		155 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

The GeForce GTX 560, in theory, should perform a lot faster than the GeForce 8800 GTX in general. (explain)

GeForce GTX 560		128128 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 41728 (48%)

Texel Rate

The GeForce GTX 560 will be much (approximately 23%) better at AF than the GeForce 8800 GTX. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 8560 (23%)

Pixel Rate

The GeForce GTX 560 should be much (approximately 88%) faster with regards to anti-aliasing than the GeForce 8800 GTX, and capable of handling higher resolutions better. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 12120 (88%)

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 largest amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the 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 are processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the bandwidth is, the lower the potential to get to the max fill rate.