GeForce 8800 GT 512MB vs GeForce GTX 750 Ti

Intro

Compare those specs to the GeForce GTX 750 Ti, which makes use of a 28 nm design. nVidia has set the core frequency at 1020 MHz. The GDDR5 RAM works at a frequency of 1350 MHz on this model. It features 640 SPUs as well as 40 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti		60 Watts
GeForce 8800 GT 512MB		105 Watts
	Difference: 45 Watts (75%)

Memory Bandwidth

In theory, the GeForce GTX 750 Ti will be 50% faster than the GeForce 8800 GT 512MB in general, due to its higher bandwidth. (explain)

GeForce GTX 750 Ti		86400 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 28800 (50%)

Texel Rate

The GeForce GTX 750 Ti should be quite a bit (approximately 21%) faster with regards to texture filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 750 Ti		40800 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 7200 (21%)

Pixel Rate

The GeForce GTX 750 Ti will be quite a bit (approximately 70%) more effective at AA than the GeForce 8800 GT 512MB, and also capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 750 Ti		16320 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 6720 (70%)

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 largest amount of data (counted in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units of the card by the core 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 in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip 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 Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. 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 ability to reach the maximum fill rate.