GeForce GTX 660 vs GeForce RTX 2060 Super

Intro

Compare those specs to the GeForce RTX 2060 Super, which features clock speeds of 1470 MHz on the GPU, and 1750 MHz on the 8192 MB of GDDR6 memory. It features 2176 SPUs as well as 136 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
GeForce RTX 2060 Super		175 Watts
	Difference: 35 Watts (25%)

Memory Bandwidth

The GeForce RTX 2060 Super, in theory, should perform much faster than the GeForce GTX 660 overall. (explain)

GeForce RTX 2060 Super		458752 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 314560 (218%)

Texel Rate

The GeForce RTX 2060 Super should be a lot (more or less 155%) more effective at AF than the GeForce GTX 660. (explain)

GeForce RTX 2060 Super		199920 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 121520 (155%)

Pixel Rate

The GeForce RTX 2060 Super should be much (more or less 300%) faster with regards to AA than the GeForce GTX 660, and will be able to handle higher resolutions more effectively. (explain)

GeForce RTX 2060 Super		94080 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 70560 (300%)

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: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video 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 number of pixels that the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.