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GeForce GTX 1080 vs GeForce GTX 1660 Ti

Intro

The GeForce GTX 1080 features a GPU core clock speed of 1607 MHz, and the 8192 MB of GDDR5X memory runs at 1251 MHz through a 256-bit bus. It also is comprised of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Compare all that to the GeForce GTX 1660 Ti, which comes with clock speeds of 1500 MHz on the GPU, and 12000 MHz on the 6144 MB of GDDR6 memory. It features 1536 SPUs along with 96 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
GeForce GTX 1080 180 Watts
Difference: 60 Watts (50%)

Memory Bandwidth

Theoretically, the GeForce GTX 1080 should be just a bit faster than the GeForce GTX 1660 Ti overall. (explain)

GeForce GTX 1080 327680 MB/sec
GeForce GTX 1660 Ti 294912 MB/sec
Difference: 32768 (11%)

Texel Rate

The GeForce GTX 1080 will be much (more or less 79%) better at texture filtering than the GeForce GTX 1660 Ti. (explain)

GeForce GTX 1080 257120 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 113120 (79%)

Pixel Rate

The GeForce GTX 1080 will be much (about 43%) more effective at anti-aliasing than the GeForce GTX 1660 Ti, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 1080 102848 Mpixels/sec
GeForce GTX 1660 Ti 72000 Mpixels/sec
Difference: 30848 (43%)

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 1080

Amazon.com

Check prices at:

GeForce GTX 1660 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.

Specifications

Display Specifications

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Model GeForce GTX 1080 GeForce GTX 1660 Ti
Manufacturer nVidia nVidia
Year May 2016 February 2019
Code Name GP104-400 TU116-400-A1
Memory 8192 MB 6144 MB
Core Speed 1607 MHz 1500 MHz
Memory Speed 10008 MHz 24000 GB/s
Power (Max TDP) 180 watts 120 watts
Bandwidth 327680 MB/sec 294912 MB/sec
Texel Rate 257120 Mtexels/sec 144000 Mtexels/sec
Pixel Rate 102848 Mpixels/sec 72000 Mpixels/sec
Unified Shaders 2560 1536
Texture Mapping Units 160 96
Render Output Units 64 48
Bus Type GDDR5X GDDR6
Bus Width 256-bit 192-bit
Fab Process 16 nm 12 nm
Transistors 7200 million 6600 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 number is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 1080

Amazon.com

Check prices at:

GeForce GTX 1660 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.

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