I get commissions for purchases made through links on this page. (more info)
Compare any two graphics cards:
GeForce GTX 1080 vs GeForce GTX 1660 Ti
IntroThe 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.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
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)
Texel RateThe GeForce GTX 1080 will be a lot (approximately 79%) better at AF than the GeForce GTX 1660 Ti. (explain)
Pixel RateThe 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)
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.
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.