GeForce 8800 Ultra vs GeForce GTX 750 Ti

Intro

Compare all of that to the GeForce GTX 750 Ti, which features a GPU core clock speed of 1020 MHz, and 2048 MB of GDDR5 RAM set to run at 1350 MHz through a 128-bit bus. It also features 640 Stream Processors, 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

The GeForce 8800 Ultra should in theory be just a bit faster than the GeForce GTX 750 Ti in general. (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 small bit (approximately 4%) more effective at texture filtering 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 high levels of AA 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: 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. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, it 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.