GeForce GTX 560 Ti vs GeForce GTX 660 Ti

Intro

Compare those specifications to the GeForce GTX 660 Ti, which comes with a GPU core clock 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 Raster Operation Units.

Display Graphs

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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 560 Ti		3466 points
	Difference: 2547 (73%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 20 Watts (13%)

Memory Bandwidth

The GeForce GTX 660 Ti should in theory perform a little bit faster than the GeForce GTX 560 Ti overall. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 560 Ti		128256 MB/sec
	Difference: 15744 (12%)

Texel Rate

The GeForce GTX 660 Ti should be quite a bit (more or less 95%) more effective at AF than the GeForce GTX 560 Ti. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 560 Ti		52608 Mtexels/sec
	Difference: 49872 (95%)

Pixel Rate

The GeForce GTX 560 Ti should be just a bit (about 20%) better at full screen anti-aliasing than the GeForce GTX 660 Ti, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 4344 (20%)

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 information (counted in MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, it must be multiplied by 2 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 texture map elements (texels) that are processed in one second. This number is calculated 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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 figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill 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 max fill rate.