GeForce RTX 3080 Ti vs Radeon RX 6600 XT

Intro

Compare those specs to the Radeon RX 6600 XT, which features GPU core speed of 1968 MHz, and 8192 MB of GDDR6 memory set to run at 2000 MHz through a 128-bit bus. It also is comprised of 2048 SPUs, 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 3080 Ti		350 Watts
	Difference: 190 Watts (119%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 Ti should theoretically be quite a bit superior to the Radeon RX 6600 XT overall. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 672153 (256%)

Texel Rate

The GeForce RTX 3080 Ti will be quite a bit (approximately 73%) better at anisotropic filtering than the Radeon RX 6600 XT. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 184896 (73%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 3080 Ti is a better choice, by a large margin. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon RX 6600 XT		125952 Mpixels/sec
	Difference: 26928 (21%)

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 data (in units of MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, it should 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of 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 rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.