GeForce 8800 GT 512MB vs GeForce GTX 660 Ti

Intro

Compare those specs to the GeForce GTX 660 Ti, which features clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 memory. It features 1344 SPUs along with 112 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GT 512MB		105 Watts
GeForce GTX 660 Ti		150 Watts
	Difference: 45 Watts (43%)

Memory Bandwidth

In theory, the GeForce GTX 660 Ti should be quite a bit faster than the GeForce 8800 GT 512MB in general. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce 8800 GT 512MB		57600 MB/sec
	Difference: 86400 (150%)

Texel Rate

The GeForce GTX 660 Ti is a lot (about 205%) more effective at texture filtering than the GeForce 8800 GT 512MB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce 8800 GT 512MB		33600 Mtexels/sec
	Difference: 68880 (205%)

Pixel Rate

The GeForce GTX 660 Ti will be quite a bit (more or less 129%) faster with regards to FSAA than the GeForce 8800 GT 512MB, and should be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce 8800 GT 512MB		9600 Mpixels/sec
	Difference: 12360 (129%)

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 max amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one 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 better the texel rate, the better the video 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 maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.