GeForce GTX 980 Ti vs Radeon RX 6900 XT

Intro

Compare all of that to the Radeon RX 6900 XT, which features core speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 5120 SPUs along with 320 Texture Address Units and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980 Ti		250 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6900 XT should be 56% faster than the GeForce GTX 980 Ti overall, because of its greater bandwidth. (explain)

Radeon RX 6900 XT		524288 MB/sec
GeForce GTX 980 Ti		336000 MB/sec
	Difference: 188288 (56%)

Texel Rate

The Radeon RX 6900 XT should be a lot (approximately 232%) better at AF than the GeForce GTX 980 Ti. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
GeForce GTX 980 Ti		176000 Mtexels/sec
	Difference: 408000 (232%)

Pixel Rate

The Radeon RX 6900 XT will be quite a bit (approximately 143%) better at full screen anti-aliasing than the GeForce GTX 980 Ti, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
GeForce GTX 980 Ti		96000 Mpixels/sec
	Difference: 137600 (143%)

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 information (counted in megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.