GeForce 8800 GT 512MB vs GeForce GTX 560

Intro

Compare those specifications to the GeForce GTX 560, which uses a 40 nm design. nVidia has set the core speed at 810 MHz. The GDDR5 RAM works at a frequency of 1001 MHz on this particular card. It features 336 SPUs along with 56 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
GeForce GTX 560		150 Watts
	Difference: 45 Watts (43%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 should theoretically be much superior to the GeForce 8800 GT 512MB overall. (explain)

GeForce GTX 560		128128 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 70528 (122%)

Texel Rate

The GeForce GTX 560 will be quite a bit (approximately 35%) faster with regards to texture filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 11760 (35%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 560 is the winner, by a large margin. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 16320 (170%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.