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GeForce GTX 660 vs GeForce GTX 750 Ti

Intro

The GeForce GTX 660 has clock speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 960 SPUs along with 80 TAUs and 24 Rasterization Operator Units.

Compare that to the GeForce GTX 750 Ti, which comes with a core clock speed of 1020 MHz and a GDDR5 memory frequency of 1350 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 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 750 Ti 4562 points
Difference: 501 (11%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 750 Ti 60 Watts
GeForce GTX 660 140 Watts
Difference: 80 Watts (133%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 660 is 67% faster than the GeForce GTX 750 Ti overall, because of its greater bandwidth. (explain)

GeForce GTX 660 144192 MB/sec
GeForce GTX 750 Ti 86400 MB/sec
Difference: 57792 (67%)

Texel Rate

The GeForce GTX 660 is a lot (more or less 92%) faster with regards to texture filtering than the GeForce GTX 750 Ti. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce GTX 750 Ti 40800 Mtexels/sec
Difference: 37600 (92%)

Pixel Rate

The GeForce GTX 660 is much (more or less 44%) more effective at AA than the GeForce GTX 750 Ti, and should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 660 23520 Mpixels/sec
GeForce GTX 750 Ti 16320 Mpixels/sec
Difference: 7200 (44%)

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

Amazon.com

Check prices at:

GeForce GTX 750 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 660 GeForce GTX 750 Ti
Manufacturer nVidia nVidia
Year September 2012 February 2014
Code Name GK106 GM107
Memory 2048 MB 2048 MB
Core Speed 980 MHz 1020 MHz
Memory Speed 6008 MHz 5400 MHz
Power (Max TDP) 140 watts 60 watts
Bandwidth 144192 MB/sec 86400 MB/sec
Texel Rate 78400 Mtexels/sec 40800 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 16320 Mpixels/sec
Unified Shaders 960 640
Texture Mapping Units 80 40
Render Output Units 24 16
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 1870 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.4

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 are processed per second. This is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce GTX 660

Amazon.com

Check prices at:

GeForce GTX 750 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.

Comments

One Response to “GeForce GTX 660 vs GeForce GTX 750 Ti”
Sardaar Ali says:

I want to know which one is better and why 🙂

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