GeForce RTX 2080 Ti vs Radeon RX 6600 XT

Intro

Compare those specifications to the Radeon RX 6600 XT, which has GPU core speed of 1968 MHz, and 8192 MB of GDDR6 memory running at 2000 MHz through a 128-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
GeForce RTX 2080 Ti		250 Watts
	Difference: 90 Watts (56%)

Memory Bandwidth

Performance-wise, the GeForce RTX 2080 Ti should theoretically be much better than the Radeon RX 6600 XT overall. (explain)

GeForce RTX 2080 Ti		630784 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 368640 (141%)

Texel Rate

The GeForce RTX 2080 Ti should be much (approximately 46%) better at anisotropic filtering than the Radeon RX 6600 XT. (explain)

GeForce RTX 2080 Ti		367200 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 115296 (46%)

Pixel Rate

The Radeon RX 6600 XT should be a bit (about 6%) better at anti-aliasing than the GeForce RTX 2080 Ti, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
GeForce RTX 2080 Ti		118800 Mpixels/sec
	Difference: 7152 (6%)

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 max amount of data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 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, High Dynamic Range 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 amount of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.