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GeForce GTX 660 Ti vs GeForce GTX 970

Intro

The GeForce GTX 660 Ti features a GPU core clock speed of 915 MHz, and the 2048 MB of GDDR5 memory is set to run at 1500 MHz through a 192-bit bus. It also is comprised of 1344 Stream Processors, 112 Texture Address Units, and 24 Raster Operation Units.

Compare those specs to the GeForce GTX 970, which comes with GPU clock speed of 1050 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 256-bit bus. It also is made up of 1664 Stream Processors, 104 Texture Address Units, and 64 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 970 10867 points
GeForce GTX 660 Ti 6013 points
Difference: 4854 (81%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970 145 Watts
GeForce GTX 660 Ti 150 Watts
Difference: 5 Watts (3%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 970 should in theory be much better than the GeForce GTX 660 Ti overall. (explain)

GeForce GTX 970 224000 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 80000 (56%)

Texel Rate

The GeForce GTX 970 will be just a bit (about 7%) more effective at AF than the GeForce GTX 660 Ti. (explain)

GeForce GTX 970 109200 Mtexels/sec
GeForce GTX 660 Ti 102480 Mtexels/sec
Difference: 6720 (7%)

Pixel Rate

The GeForce GTX 970 will be quite a bit (more or less 206%) faster with regards to AA than the GeForce GTX 660 Ti, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 970 67200 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 45240 (206%)

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 660 Ti

Amazon.com

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GeForce GTX 970

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 660 Ti GeForce GTX 970
Manufacturer nVidia nVidia
Year August 2012 September 2014
Code Name GK104 GM204-200
Memory 2048 MB 4096 MB
Core Speed 915 MHz 1050 MHz
Memory Speed 6000 MHz 7000 MHz
Power (Max TDP) 150 watts 145 watts
Bandwidth 144000 MB/sec 224000 MB/sec
Texel Rate 102480 Mtexels/sec 109200 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 67200 Mpixels/sec
Unified Shaders 1344 1664
Texture Mapping Units 112 104
Render Output Units 24 64
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 5200 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 660 Ti

Amazon.com

Check prices at:

GeForce GTX 970

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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