GeForce RTX 2080 vs Radeon RX 6600 XT

Intro

Compare those specifications to the Radeon RX 6600 XT, which features core speeds of 1968 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR6 memory. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
GeForce RTX 2080		215 Watts
	Difference: 55 Watts (34%)

Memory Bandwidth

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

GeForce RTX 2080		458752 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 196608 (75%)

Texel Rate

The GeForce RTX 2080 will be just a bit (approximately 11%) more effective at AF than the Radeon RX 6600 XT. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 26856 (11%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6600 XT is the winner, by a large margin. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
GeForce RTX 2080		96960 Mpixels/sec
	Difference: 28992 (30%)

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 largest amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, 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 that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.