GeForce RTX 2080 SUPER vs GeForce RTX 3090

Intro

Compare those specs to the GeForce RTX 3090, which comes with GPU clock speed of 1395 MHz, and 24576 MB of GDDR6X RAM running at 1219 MHz through a 384-bit bus. It also features 10496 SPUs, 328 TAUs, and 112 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 SUPER		250 Watts
GeForce RTX 3090		350 Watts
	Difference: 100 Watts (40%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3090 should be 89% quicker than the GeForce RTX 2080 SUPER in general, due to its higher data rate. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce RTX 2080 SUPER		507904 MB/sec
	Difference: 450764 (89%)

Texel Rate

The GeForce RTX 3090 will be much (about 44%) better at anisotropic filtering than the GeForce RTX 2080 SUPER. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce RTX 2080 SUPER		316800 Mtexels/sec
	Difference: 140760 (44%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 3090 is the winner, by far. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce RTX 2080 SUPER		105600 Mpixels/sec
	Difference: 50640 (48%)

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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at 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 can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.