GeForce RTX 3080 vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which comes with GPU clock speed of 2200 MHz, and 4096 MB of GDDR6 RAM set to run at 2250 MHz through a 64-bit bus. It also is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
GeForce RTX 3080		320 Watts
	Difference: 213 Watts (199%)

Memory Bandwidth

The GeForce RTX 3080, in theory, should be a lot faster than the Radeon RX 6500 XT overall. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 631091 (428%)

Texel Rate

The GeForce RTX 3080 should be much (more or less 178%) better at anisotropic filtering than the Radeon RX 6500 XT. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon RX 6500 XT		140800 Mtexels/sec
	Difference: 250880 (178%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 3080 is superior to the Radeon RX 6500 XT, by a large margin. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon RX 6500 XT		70400 Mpixels/sec
	Difference: 67840 (96%)

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 MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling 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 the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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 - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.