GeForce 9600 GSO 768MB vs Geforce GTX 680

Intro

Compare all of that to the Geforce GTX 680, which has core clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9600 GSO 768MB		84 Watts
Geforce GTX 680		195 Watts
	Difference: 111 Watts (132%)

Memory Bandwidth

In theory, the Geforce GTX 680 is 401% quicker than the GeForce 9600 GSO 768MB in general, because of its greater bandwidth. (explain)

Geforce GTX 680		192256 MB/sec
GeForce 9600 GSO 768MB		38400 MB/sec
	Difference: 153856 (401%)

Texel Rate

The Geforce GTX 680 will be quite a bit (about 388%) more effective at anisotropic filtering than the GeForce 9600 GSO 768MB. (explain)

Geforce GTX 680		128768 Mtexels/sec
GeForce 9600 GSO 768MB		26400 Mtexels/sec
	Difference: 102368 (388%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 680 is the winner, by a large margin. (explain)

Geforce GTX 680		32192 Mpixels/sec
GeForce 9600 GSO 768MB		6600 Mpixels/sec
	Difference: 25592 (388%)

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 (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.