GeForce GTX 1080 vs GeForce RTX 2080 SUPER

Intro

Compare those specs to the GeForce RTX 2080 SUPER, which has a GPU core clock speed of 1650 MHz, and 8192 MB of GDDR6 RAM running at 1937 MHz through a 256-bit bus. It also is made up of 3072 Stream Processors, 192 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080		180 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 70 Watts (39%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 2080 SUPER should in theory be a lot superior to the GeForce GTX 1080 in general. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
GeForce GTX 1080		327680 MB/sec
	Difference: 180224 (55%)

Texel Rate

The GeForce RTX 2080 SUPER should be quite a bit (about 23%) better at anisotropic filtering than the GeForce GTX 1080. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
GeForce GTX 1080		257120 Mtexels/sec
	Difference: 59680 (23%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce RTX 2080 SUPER is the winner, though not by far. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
GeForce GTX 1080		102848 Mpixels/sec
	Difference: 2752 (3%)

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 max amount of data (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.