GeForce GTX 1080 vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which makes use of a 7 nm design. AMD has clocked the core speed at 1825 MHz. The GDDR6 memory runs at a speed of 2000 MHz on this card. It features 5120 SPUs as well as 320 Texture Address Units and 128 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080		180 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 120 Watts (67%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6900 XT should theoretically be a lot superior to the GeForce GTX 1080 in general. (explain)

Radeon RX 6900 XT		524288 MB/sec
GeForce GTX 1080		327680 MB/sec
	Difference: 196608 (60%)

Texel Rate

The Radeon RX 6900 XT is a lot (more or less 127%) faster with regards to anisotropic filtering than the GeForce GTX 1080. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
GeForce GTX 1080		257120 Mtexels/sec
	Difference: 326880 (127%)

Pixel Rate

The Radeon RX 6900 XT should be a lot (approximately 127%) more effective at full screen anti-aliasing than the GeForce GTX 1080, and able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
GeForce GTX 1080		102848 Mpixels/sec
	Difference: 130752 (127%)

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 (in units of megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.