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GeForce GTX 1080 vs GeForce GTX 1660 Ti

Intro

The GeForce GTX 1080 has a GPU core clock speed of 1607 MHz, and the 8192 MB of GDDR5X RAM runs at 1251 MHz through a 256-bit bus. It also is comprised of 2560 Stream Processors, 160 Texture Address Units, and 64 ROPs.

Compare all that to the GeForce GTX 1660 Ti, which uses a 12 nm design. nVidia has clocked the core speed at 1500 MHz. The GDDR6 RAM runs at a speed of 1500 MHz on this specific card. It features 1536 SPUs along with 96 TAUs and 48 Rasterization Operator 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

Theoretically speaking, the GeForce GTX 1080 should be 11% quicker than the GeForce GTX 1660 Ti in general, because of its greater data rate. (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 a lot (approximately 79%) better at AF 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 should be a lot (about 43%) faster with regards to full screen anti-aliasing than the GeForce GTX 1660 Ti, and also will be able to handle higher 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

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GeForce GTX 1660 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 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 3000 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 (measured in MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum 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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