GeForce GTX 1660 Ti vs GeForce GTX 980 Ti

Intro

Compare those specs to the GeForce GTX 980 Ti, which comes with core speeds of 1000 MHz on the GPU, and 1750 MHz on the 6144 MB of GDDR5 RAM. It features 2816 SPUs along with 176 Texture Address Units and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti		120 Watts
GeForce GTX 980 Ti		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

In theory, the GeForce GTX 980 Ti should perform a bit faster than the GeForce GTX 1660 Ti in general. (explain)

GeForce GTX 980 Ti		336000 MB/sec
GeForce GTX 1660 Ti		294912 MB/sec
	Difference: 41088 (14%)

Texel Rate

The GeForce GTX 980 Ti should be much (about 22%) more effective at AF than the GeForce GTX 1660 Ti. (explain)

GeForce GTX 980 Ti		176000 Mtexels/sec
GeForce GTX 1660 Ti		144000 Mtexels/sec
	Difference: 32000 (22%)

Pixel Rate

The GeForce GTX 980 Ti will be quite a bit (more or less 33%) faster with regards to full screen anti-aliasing than the GeForce GTX 1660 Ti, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 980 Ti		96000 Mpixels/sec
GeForce GTX 1660 Ti		72000 Mpixels/sec
	Difference: 24000 (33%)

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

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 are applied in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.