GeForce RTX 2080 vs Radeon RX 6600 XT

Intro

Compare those specifications to the Radeon RX 6600 XT, which features GPU clock speed of 1968 MHz, and 8192 MB of GDDR6 RAM set to run at 2000 MHz through a 128-bit bus. It also features 2048 SPUs, 128 TAUs, and 64 Raster Operation 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

In theory, the GeForce RTX 2080 is 75% faster than the Radeon RX 6600 XT in general, because of its higher bandwidth. (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%) faster with regards to 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 a high screen resolution is important to you, then the Radeon RX 6600 XT is the winner, and very much so. (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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 number of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock 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 many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.