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GeForce GTX 560 Ti vs GeForce GTX 660

Intro

The GeForce GTX 560 Ti makes use of a 40 nm design. nVidia has clocked the core speed at 822 MHz. The GDDR5 RAM is set to run at a frequency of 1002 MHz on this particular model. It features 384 SPUs along with 64 Texture Address Units and 32 ROPs.

Compare that to the GeForce GTX 660, which comes with a core clock speed of 980 MHz and a GDDR5 memory frequency of 1502 MHz. It also features a 192-bit bus, and makes use of a 28 nm design. It features 960 SPUs, 80 TAUs, and 24 Raster Operation Units.

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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 5063 points
GeForce GTX 560 Ti 3466 points
Difference: 1597 (46%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
GeForce GTX 560 Ti 170 Watts
Difference: 30 Watts (21%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 is 12% faster than the GeForce GTX 560 Ti overall, due to its higher bandwidth. (explain)

GeForce GTX 660 144192 MB/sec
GeForce GTX 560 Ti 128256 MB/sec
Difference: 15936 (12%)

Texel Rate

The GeForce GTX 660 will be quite a bit (approximately 49%) faster with regards to AF than the GeForce GTX 560 Ti. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce GTX 560 Ti 52608 Mtexels/sec
Difference: 25792 (49%)

Pixel Rate

The GeForce GTX 560 Ti should be a little bit (approximately 12%) better at FSAA than the GeForce GTX 660, and also capable of handling higher screen resolutions better. (explain)

GeForce GTX 560 Ti 26304 Mpixels/sec
GeForce GTX 660 23520 Mpixels/sec
Difference: 2784 (12%)

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 Ti

Amazon.com

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GeForce GTX 660

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 Ti GeForce GTX 660
Manufacturer nVidia nVidia
Year January 2011 September 2012
Code Name GF114 GK106
Memory 1024 MB 2048 MB
Core Speed 822 MHz 980 MHz
Memory Speed 4008 MHz 6008 MHz
Power (Max TDP) 170 watts 140 watts
Bandwidth 128256 MB/sec 144192 MB/sec
Texel Rate 52608 Mtexels/sec 78400 Mtexels/sec
Pixel Rate 26304 Mpixels/sec 23520 Mpixels/sec
Unified Shaders 384 960
Texture Mapping Units 64 80
Render Output Units 32 24
Bus Type GDDR5 GDDR5
Bus Width 256-bit 192-bit
Fab Process 40 nm 28 nm
Transistors 1950 million 2540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.0
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one 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 worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - 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 Ti

Amazon.com

Check prices at:

GeForce GTX 660

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.

Comments

One Response to “GeForce GTX 560 Ti vs GeForce GTX 660”
Jack Abramoff says:

The site is missing the GTX 650 Ti Boost. It's closer to a cutdown GTX 660 than it is to the GTX 650 Ti (660 & 650 Ti Boost are 192-bit while 650 Ti is only 128-bit). It comes in a 2 GB version and a slightly downclocked 1 GB version as well.

http://www.geforce.com/whats-new/articles/introducing-the-geforce-gtx-650-ti-boost
https://en.wikipedia.org/wiki/GeForce_600_series

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