GeForce RTX 3080 Ti vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which features a core clock frequency of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also makes use of a 128-bit bus, and uses a 7 nm design. It features 2048 SPUs, 128 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 174 Watts (99%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 Ti is 225% quicker than the Radeon RX 6650 XT in general, because of its greater bandwidth. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Radeon RX 6650 XT		287072 MB/sec
	Difference: 647225 (225%)

Texel Rate

The GeForce RTX 3080 Ti will be quite a bit (approximately 66%) faster with regards to anisotropic filtering than the Radeon RX 6650 XT. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Radeon RX 6650 XT		263040 Mtexels/sec
	Difference: 173760 (66%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 3080 Ti is a better choice, though only just barely. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Radeon RX 6650 XT		131520 Mpixels/sec
	Difference: 21360 (16%)

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 transported past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.