GeForce GTX 580 vs GeForce GTX 660 Ti

Intro

Compare all of that to the GeForce GTX 660 Ti, which comes with core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs along with 112 TAUs and 24 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 660 Ti		6013 points
GeForce GTX 580		4956 points
	Difference: 1057 (21%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
GeForce GTX 580		244 Watts
	Difference: 94 Watts (63%)

Memory Bandwidth

The GeForce GTX 580, in theory, should perform quite a bit faster than the GeForce GTX 660 Ti in general. (explain)

GeForce GTX 580		192384 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 48384 (34%)

Texel Rate

The GeForce GTX 660 Ti will be much (about 107%) faster with regards to AF than the GeForce GTX 580. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 53072 (107%)

Pixel Rate

The GeForce GTX 580 should be much (approximately 69%) better at FSAA than the GeForce GTX 660 Ti, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 15096 (69%)

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 one second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.