GeForce RTX 3080 12 GB vs Radeon RX 6500 XT

Intro

Compare those specs to the Radeon RX 6500 XT, which features core speeds of 2200 MHz on the GPU, and 2250 MHz on the 4096 MB of GDDR6 memory. It features 1024 SPUs as well as 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 243 Watts (227%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 12 GB should perform quite a bit faster than the Radeon RX 6500 XT overall. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 786842 (534%)

Texel Rate

The GeForce RTX 3080 12 GB is quite a bit (approximately 151%) better at anisotropic filtering than the Radeon RX 6500 XT. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon RX 6500 XT		140800 Mtexels/sec
	Difference: 212000 (151%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3080 12 GB is the winner, by far. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon RX 6500 XT		70400 Mpixels/sec
	Difference: 70720 (100%)

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 max amount of information (in units of MB per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core speed of the card. 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, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.