GeForce 8800 Ultra vs GeForce GTX 750 Ti

Intro

Compare those specs to the GeForce GTX 750 Ti, which has GPU core speed of 1020 MHz, and 2048 MB of GDDR5 RAM set to run at 1350 MHz through a 128-bit bus. It also is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 111 Watts (185%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra is 20% quicker than the GeForce GTX 750 Ti overall, because of its greater data rate. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GTX 750 Ti		86400 MB/sec
	Difference: 17280 (20%)

Texel Rate

The GeForce GTX 750 Ti will be a little bit (approximately 4%) better at AF than the GeForce 8800 Ultra. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
GeForce 8800 Ultra		39168 Mtexels/sec
	Difference: 1632 (4%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 750 Ti is the winner, but it probably won't make a huge difference. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 1632 (11%)

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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs 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 output rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.