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GeForce GTX 560 vs GeForce GTX 660 Ti

Intro

The GeForce GTX 560 uses a 40 nm design. nVidia has clocked the core speed at 810 MHz. The GDDR5 RAM works at a speed of 1001 MHz on this model. It features 336 SPUs along with 56 TAUs and 32 ROPs.

Compare those specs to the GeForce GTX 660 Ti, which uses a 28 nm design. nVidia has set the core speed at 915 MHz. The GDDR5 RAM runs at a frequency of 1500 MHz on this particular card. It features 1344 SPUs as well as 112 TAUs and 24 ROPs.

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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

Performance-wise, the GeForce GTX 660 Ti should in theory be just a bit superior to 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 is a lot (more or less 126%) more effective 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

If using lots of anti-aliasing is important to you, then the GeForce GTX 560 is a better choice, but it probably won't make a huge difference. (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

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GeForce GTX 560

Amazon.com

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GeForce GTX 660 Ti

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 560 GeForce GTX 660 Ti
Manufacturer nVidia nVidia
Year May 2011 August 2012
Code Name GF114 GK104
Memory 1024 MB 2048 MB
Core Speed 810 MHz 915 MHz
Memory Speed 4004 MHz 6000 MHz
Power (Max TDP) 150 watts 150 watts
Bandwidth 128128 MB/sec 144000 MB/sec
Texel Rate 45360 Mtexels/sec 102480 Mtexels/sec
Pixel Rate 25920 Mpixels/sec 21960 Mpixels/sec
Unified Shaders 336 1344
Texture Mapping Units 56 112
Render Output Units 32 24
Bus Type GDDR5 GDDR5
Bus Width 256-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 3540 million
Bus PCIe 2.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 560

Amazon.com

Check prices at:

GeForce GTX 660 Ti

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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