GeForce 8800 Ultra vs GeForce GTX 560 Ti

Intro

Compare that to the GeForce GTX 560 Ti, which makes use of a 40 nm design. nVidia has clocked the core speed at 822 MHz. The GDDR5 RAM runs at a speed of 1002 MHz on this model. It features 384 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 Ti		170 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 1 Watts (1%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 560 Ti should theoretically be much superior to the GeForce 8800 Ultra overall. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 24576 (24%)

Texel Rate

The GeForce GTX 560 Ti should be much (approximately 34%) better at anisotropic filtering than the GeForce 8800 Ultra. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 13440 (34%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 560 Ti is the winner, by a large margin. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 11616 (79%)

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 maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 processed per second. This is calculated by multiplying the total amount of texture units 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.