GeForce RTX 3080 vs Radeon RX 6600 XT

Intro

Compare those specifications to the Radeon RX 6600 XT, which uses a 7 nm design. AMD has clocked the core frequency at 1968 MHz. The GDDR6 RAM works at a speed of 2000 MHz on this specific model. It features 2048 SPUs as well as 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 3080		320 Watts
	Difference: 160 Watts (100%)

Memory Bandwidth

In theory, the GeForce RTX 3080 will be 197% faster than the Radeon RX 6600 XT overall, due to its greater data rate. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon RX 6600 XT		262144 MB/sec
	Difference: 516403 (197%)

Texel Rate

The GeForce RTX 3080 should be quite a bit (approximately 55%) more effective at AF than the Radeon RX 6600 XT. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon RX 6600 XT		251904 Mtexels/sec
	Difference: 139776 (55%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3080 is the winner, but not by far. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon RX 6600 XT		125952 Mpixels/sec
	Difference: 12288 (10%)

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 information (counted in megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.