GeForce 8800 GTS (G80) 320MB vs GeForce GTX 650 Ti 2GB

Intro

Compare those specifications to the GeForce GTX 650 Ti 2GB, which features a clock speed of 928 MHz and a GDDR5 memory frequency of 1350 MHz. It also features a 128-bit bus, and makes use of a 28 nm design. It features 768 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce 8800 GTS (G80) 320MB		143 Watts
	Difference: 33 Watts (30%)

Memory Bandwidth

Performance-wise, the GeForce GTX 650 Ti 2GB should theoretically be much better than the GeForce 8800 GTS (G80) 320MB overall. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 23040 (36%)

Texel Rate

The GeForce GTX 650 Ti 2GB is quite a bit (about 141%) more effective at AF than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 34768 (141%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 650 Ti 2GB is superior to the GeForce 8800 GTS (G80) 320MB, by far. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 4588 (45%)

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 (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. 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 AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.