GeForce 8800 GTS (G80) 320MB vs GeForce GTX 960

Intro

Compare those specifications to the GeForce GTX 960, which features GPU clock speed of 1127 MHz, and 2048 MB of GDDR5 RAM set to run at 1750 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960		120 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 23 Watts (19%)

Memory Bandwidth

Theoretically, the GeForce GTX 960 should be a lot faster than the GeForce 8800 GTS (G80) 320MB in general. (explain)

GeForce GTX 960		112000 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 48640 (77%)

Texel Rate

The GeForce GTX 960 is quite a bit (about 193%) faster with regards to texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 960		72128 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 47504 (193%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 960 is a better choice, by far. (explain)

GeForce GTX 960		36064 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 25804 (252%)

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 max amount of data (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.