GeForce 8800 GTS (G92) vs GeForce 8800 GTX

Intro

Compare those specs to the GeForce 8800 GTX, which features a core clock speed of 575 MHz and a GDDR3 memory speed of 900 MHz. It also uses a 384-bit memory bus, and makes use of a 90 nm design. It is comprised of 128 SPUs, 64 Texture Address Units, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce 8800 GTX		155 Watts
	Difference: 20 Watts (15%)

Memory Bandwidth

Theoretically speaking, the GeForce 8800 GTX should be quite a bit faster than the GeForce 8800 GTS (G92) in general. (explain)

GeForce 8800 GTX		86400 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 24320 (39%)

Texel Rate

The GeForce 8800 GTS (G92) is just a bit (about 13%) more effective at anisotropic filtering than the GeForce 8800 GTX. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 4800 (13%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce 8800 GTX is superior to the GeForce 8800 GTS (G92), by far. (explain)

GeForce 8800 GTX		13800 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 3400 (33%)

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 MB per second) that can be transported past the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.