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GeForce GTX 1080 vs GeForce GTX 1660 Ti

Intro

The GeForce GTX 1080 uses a 16 nm design. nVidia has set the core frequency at 1607 MHz. The GDDR5X memory is set to run at a speed of 1251 MHz on this particular card. It features 2560 SPUs along with 160 TAUs and 64 ROPs.

Compare that to the GeForce GTX 1660 Ti, which has GPU clock speed of 1500 MHz, and 6144 MB of GDDR6 memory set to run at 12000 MHz through a 192-bit bus. It also is comprised of 1536 SPUs, 96 Texture Address Units, and 48 Raster Operation Units.

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

Performance-wise, the GeForce GTX 1080 should theoretically be a small bit better 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 quite a bit (more or less 79%) faster with regards to anisotropic 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 (approximately 43%) faster with regards to AA than the GeForce GTX 1660 Ti, and also should be capable of handling higher screen resolutions while still performing well. (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

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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 largest amount of information (counted in MB per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that can be processed per second. This number 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 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 card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends 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 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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