GeForce 8800 GTS (G92) vs GeForce 8800 GTX

Intro

Compare those specifications to the GeForce 8800 GTX, which has core speeds of 575 MHz on the GPU, and 900 MHz on the 768 MB of GDDR3 memory. It features 128 SPUs as well as 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

Performance-wise, the GeForce 8800 GTX should in theory be quite a bit better 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) will be a small 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 running with high levels of AA is important to you, then the GeForce 8800 GTX is a better choice, 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 largest amount of data (measured in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at 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 chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.