GeForce 8800 Ultra vs GeForce GTX 560

Intro

Compare those specs to the GeForce GTX 560, which makes use of a 40 nm design. nVidia has set the core speed at 810 MHz. The GDDR5 memory works at a speed of 1001 MHz on this model. It features 336 SPUs along with 56 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560		150 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 21 Watts (14%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 is 24% quicker than the GeForce 8800 Ultra overall, because of its greater data rate. (explain)

GeForce GTX 560		128128 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 24448 (24%)

Texel Rate

The GeForce GTX 560 will be a little bit (approximately 16%) more effective at anisotropic filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 560		45360 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 6192 (16%)

Pixel Rate

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

GeForce GTX 560		25920 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 11232 (76%)

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 max amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.