GeForce RTX 2080 vs Radeon RX 7900 XT

Intro

Compare those specs to the Radeon RX 7900 XT, which uses a 5 nm design. AMD has set the core speed at 1500 MHz. The GDDR6 memory is set to run at a frequency of 2500 MHz on this particular card. It features 5376 SPUs along with 336 TAUs and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080		215 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 85 Watts (40%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XT should perform quite a bit faster than the GeForce RTX 2080 in general. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce RTX 2080		458752 MB/sec
	Difference: 360448 (79%)

Texel Rate

The Radeon RX 7900 XT should be a lot (approximately 81%) better at anisotropic filtering than the GeForce RTX 2080. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
GeForce RTX 2080		278760 Mtexels/sec
	Difference: 225240 (81%)

Pixel Rate

The Radeon RX 7900 XT should be quite a bit (more or less 197%) more effective at anti-aliasing than the GeForce RTX 2080, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce RTX 2080		96960 Mpixels/sec
	Difference: 191040 (197%)

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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should 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 AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount 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 calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.