GeForce GTX 560 vs GeForce GTX 660 Ti

Intro

Compare all that to the GeForce GTX 660 Ti, which uses a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 memory is set to run at a frequency of 1500 MHz on this card. It features 1344 SPUs as well as 112 TAUs 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, the GeForce GTX 660 Ti should be a small bit faster than the GeForce GTX 560 overall. (explain)

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

Texel Rate

The GeForce GTX 660 Ti should be much (about 126%) better at AF than the GeForce GTX 560. (explain)

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

Pixel Rate

The GeForce GTX 560 should be just a bit (more or less 18%) better at AA than the GeForce GTX 660 Ti, and also should be able to handle higher screen resolutions better. (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 (measured in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.