GeForce GTX 580 vs GeForce GTX 660 Ti

Intro

Compare those specs to the GeForce GTX 660 Ti, which features a GPU core clock speed of 915 MHz, and 2048 MB of GDDR5 memory set to run at 1500 MHz through a 192-bit bus. It also is comprised of 1344 Stream Processors, 112 Texture Address Units, and 24 Raster Operation Units.

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

In theory, the GeForce GTX 580 is 34% quicker than the GeForce GTX 660 Ti overall, due to its greater bandwidth. (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 a lot (more or less 107%) better at 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 will be quite a bit (approximately 69%) more effective at anti-aliasing than the GeForce GTX 660 Ti, and also will be 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: Bandwidth is the largest amount of data (measured in MB per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 again. If 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 high resolutions.

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

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