GeForce RTX 3080 vs Radeon RX 5500 XT

Intro

Compare all that to the Radeon RX 5500 XT, which uses a 7 nm design. AMD has set the core speed at 1717 MHz. The GDDR6 memory is set to run at a speed of 1750 MHz on this specific model. It features 1408 SPUs as well as 88 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
GeForce RTX 3080		320 Watts
	Difference: 190 Watts (146%)

Memory Bandwidth

In theory, the GeForce RTX 3080 is 239% faster than the Radeon RX 5500 XT in general, because of its higher data rate. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 549171 (239%)

Texel Rate

The GeForce RTX 3080 is a lot (approximately 159%) better at AF than the Radeon RX 5500 XT. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon RX 5500 XT		151096 Mtexels/sec
	Difference: 240584 (159%)

Pixel Rate

The GeForce RTX 3080 will be much (about 152%) faster with regards to anti-aliasing than the Radeon RX 5500 XT, and should be capable of handling higher resolutions better. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon RX 5500 XT		54944 Mpixels/sec
	Difference: 83296 (152%)

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 data (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.