GeForce GTX 980 Ti vs Radeon RX 6900 XT

Intro

Compare that to the Radeon RX 6900 XT, which comes with core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 5120 SPUs along with 320 TAUs and 128 Rasterization Operator Units.

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

The Radeon RX 6900 XT, in theory, should be quite a bit faster than the GeForce GTX 980 Ti overall. (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 is much (approximately 232%) more effective at anisotropic filtering 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 is a lot (approximately 143%) faster with regards to full screen anti-aliasing than the GeForce GTX 980 Ti, and also should be capable of handling higher resolutions without losing too much performance. (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: Bandwidth is the maximum amount of information (measured in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the 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 most pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.