GeForce 8800 Ultra vs GeForce GTX 750

Intro

Compare all that to the GeForce GTX 750, which has a GPU core clock speed of 1020 MHz, and 1024 MB of GDDR5 memory set to run at 1250 MHz through a 128-bit bus. It also features 512 SPUs, 32 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750		55 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 116 Watts (211%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra is 30% quicker than the GeForce GTX 750 overall, due to its higher bandwidth. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GTX 750		80000 MB/sec
	Difference: 23680 (30%)

Texel Rate

The GeForce 8800 Ultra is just a bit (more or less 20%) faster with regards to texture filtering than the GeForce GTX 750. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GTX 750		32640 Mtexels/sec
	Difference: 6528 (20%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 750 is superior to the GeForce 8800 Ultra, but only just. (explain)

GeForce GTX 750		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 (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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