GeForce GTX 560 vs GeForce GTX 660 Ti

Intro

Compare that to the GeForce GTX 660 Ti, which makes use of a 28 nm design. nVidia has set the core frequency at 915 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this card. It features 1344 SPUs as well as 112 Texture Address Units and 24 Rasterization Operator 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		3030 points
	Difference: 2983 (98%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 Ti should be 12% faster than the GeForce GTX 560 overall, because of its greater data rate. (explain)

GeForce GTX 660 Ti		144000 MB/sec
GeForce GTX 560		128128 MB/sec
	Difference: 15872 (12%)

Texel Rate

The GeForce GTX 660 Ti will be a lot (about 126%) more effective at anisotropic filtering than the GeForce GTX 560. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 57120 (126%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 560 is the winner, though only just barely. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 3960 (18%)

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 (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's 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 amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant 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.