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GeForce GTX 560 Ti vs GeForce GTX 660

Intro

The GeForce GTX 560 Ti comes with core speeds of 822 MHz on the GPU, and 1002 MHz on the 1024 MB of GDDR5 RAM. It features 384 SPUs as well as 64 TAUs and 32 Rasterization Operator Units.

Compare that to the GeForce GTX 660, which uses a 28 nm design. nVidia has clocked the core frequency at 980 MHz. The GDDR5 memory runs at a speed of 1502 MHz on this particular card. It features 960 SPUs along with 80 Texture Address Units 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 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

The GeForce GTX 660 should in theory be a small bit faster than the GeForce GTX 560 Ti overall. (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 a lot (more or less 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

If using a high resolution is important to you, then the GeForce GTX 560 Ti is superior to the GeForce GTX 660, but it probably won't make a huge difference. (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 largest amount of information (measured in megabytes per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, 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 figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially 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 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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