GeForce 8800 GTS (G80) 320MB vs GeForce GTX 460 2GB

Intro

Compare those specifications to the GeForce GTX 460 2GB, which comes with GPU clock speed of 675 MHz, and 2048 MB of GDDR5 memory set to run at 900 MHz through a 256-bit bus. It also is comprised of 336 Stream Processors, 56 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 320MB		143 Watts
GeForce GTX 460 2GB		160 Watts
	Difference: 17 Watts (12%)

Memory Bandwidth

Theoretically, the GeForce GTX 460 2GB should be a lot faster than the GeForce 8800 GTS (G80) 320MB in general. (explain)

GeForce GTX 460 2GB		115200 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 51840 (82%)

Texel Rate

The GeForce GTX 460 2GB is quite a bit (approximately 54%) more effective at AF than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 460 2GB		37800 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 13176 (54%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 2GB is a better choice, by far. (explain)

GeForce GTX 460 2GB		21600 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 11340 (111%)

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 data (in units of megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.