GeForce 8800 GT 512MB vs GeForce GTX 560

Intro

Compare all that to the GeForce GTX 560, which makes use of a 40 nm design. nVidia has clocked the core frequency at 810 MHz. The GDDR5 RAM runs at a frequency of 1001 MHz on this model. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

The GeForce GTX 560 should theoretically perform much faster than the GeForce 8800 GT 512MB in general. (explain)

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

Texel Rate

The GeForce GTX 560 should be quite a bit (about 35%) more effective at AF 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

The GeForce GTX 560 is much (about 170%) better at full screen anti-aliasing than the GeForce 8800 GT 512MB, and also able to handle higher screen resolutions while still performing well. (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: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 applied 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 higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.