GeForce GTX 580 vs GeForce GTX 660 Ti

Intro

Compare all that to the GeForce GTX 660 Ti, which comes with GPU core speed of 915 MHz, and 2048 MB of GDDR5 RAM running at 1500 MHz through a 192-bit bus. It also is made up of 1344 Stream Processors, 112 Texture Address Units, 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 should theoretically be much faster than the GeForce GTX 660 Ti overall. (explain)

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

Texel Rate

The GeForce GTX 660 Ti is quite a bit (about 107%) better at texture filtering than the GeForce GTX 580. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 580 is the winner, by a large margin. (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 (in units of MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel 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 potential to get to the max fill rate.