GeForce 8800 GTS (G92) vs Geforce GTX 680

Intro

Compare those specifications to the Geforce GTX 680, which comes with a GPU core clock speed of 1006 MHz, and 2048 MB of GDDR5 RAM set to run at 1502 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
Geforce GTX 680		195 Watts
	Difference: 60 Watts (44%)

Memory Bandwidth

The Geforce GTX 680 should in theory perform much faster than the GeForce 8800 GTS (G92) in general. (explain)

Geforce GTX 680		192256 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 130176 (210%)

Texel Rate

The Geforce GTX 680 will be quite a bit (about 210%) better at texture filtering than the GeForce 8800 GTS (G92). (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 87168 (210%)

Pixel Rate

The Geforce GTX 680 should be quite a bit (about 210%) more effective at full screen anti-aliasing than the GeForce 8800 GTS (G92), and will be able to handle higher screen resolutions more effectively. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 21792 (210%)

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 maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the most 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 card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.