GeForce GTX 660 vs GeForce RTX 2060 Super

Intro

Compare those specs to the GeForce RTX 2060 Super, which comes with a core clock frequency of 1470 MHz and a GDDR6 memory speed of 1750 MHz. It also uses a 256-bit memory bus, and makes use of a 12 nm design. It features 2176 SPUs, 136 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce RTX 2060 Super will be 218% faster than the GeForce GTX 660 overall, because of its higher data rate. (explain)

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

Texel Rate

The GeForce RTX 2060 Super is a lot (more or less 155%) more effective at anisotropic filtering 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 will be much (about 300%) better at full screen anti-aliasing than the GeForce GTX 660, and should 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 max amount of data (measured in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.