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GeForce GTX 660 Ti vs GeForce GTX 950

Intro

The GeForce GTX 660 Ti has a GPU clock speed of 915 MHz, and the 2048 MB of GDDR5 memory runs at 1500 MHz through a 192-bit bus. It also is comprised of 1344 SPUs, 112 TAUs, and 24 ROPs.

Compare those specifications to the GeForce GTX 950, which has a core clock speed of 1024 MHz and a GDDR5 memory frequency of 1652 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It features 768 SPUs, 48 Texture Address Units, and 32 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 950 6536 points
GeForce GTX 660 Ti 6013 points
Difference: 523 (9%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 950 90 Watts
GeForce GTX 660 Ti 150 Watts
Difference: 60 Watts (67%)

Memory Bandwidth

In theory, the GeForce GTX 660 Ti will be 36% quicker than the GeForce GTX 950 overall, due to its greater data rate. (explain)

GeForce GTX 660 Ti 144000 MB/sec
GeForce GTX 950 105728 MB/sec
Difference: 38272 (36%)

Texel Rate

The GeForce GTX 660 Ti is a lot (more or less 108%) more effective at AF than the GeForce GTX 950. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
GeForce GTX 950 49152 Mtexels/sec
Difference: 53328 (108%)

Pixel Rate

The GeForce GTX 950 is much (approximately 49%) faster with regards to full screen anti-aliasing than the GeForce GTX 660 Ti, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 950 32768 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 10808 (49%)

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 950

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 950
Manufacturer nVidia nVidia
Year August 2012 August 2015
Code Name GK104 GM206
Memory 2048 MB 2048 MB
Core Speed 915 MHz 1024 MHz
Memory Speed 6000 MHz 6608 MHz
Power (Max TDP) 150 watts 90 watts
Bandwidth 144000 MB/sec 105728 MB/sec
Texel Rate 102480 Mtexels/sec 49152 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 32768 Mpixels/sec
Unified Shaders 1344 768
Texture Mapping Units 112 48
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 2940 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (in units of MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling 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 that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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GeForce GTX 660 Ti

Amazon.com

Check prices at:

GeForce GTX 950

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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