GeForce RTX 2080 SUPER vs GeForce RTX 4090

Intro

Compare those specifications to the GeForce RTX 4090, which comes with GPU clock speed of 2235 MHz, and 24576 MB of GDDR6X RAM running at 1325 MHz through a 384-bit bus. It also features 16384 Stream Processors, 512 TAUs, and 176 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 SUPER		250 Watts
GeForce RTX 4090		450 Watts
	Difference: 200 Watts (80%)

Memory Bandwidth

Theoretically, the GeForce RTX 4090 should perform quite a bit faster than the GeForce RTX 2080 SUPER in general. (explain)

GeForce RTX 4090		1042432 MB/sec
GeForce RTX 2080 SUPER		507904 MB/sec
	Difference: 534528 (105%)

Texel Rate

The GeForce RTX 4090 is quite a bit (approximately 261%) better at texture filtering than the GeForce RTX 2080 SUPER. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
GeForce RTX 2080 SUPER		316800 Mtexels/sec
	Difference: 827520 (261%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 4090 is superior to the GeForce RTX 2080 SUPER, by far. (explain)

GeForce RTX 4090		393360 Mpixels/sec
GeForce RTX 2080 SUPER		105600 Mpixels/sec
	Difference: 287760 (273%)

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 (measured in MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock 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 rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.