GeForce RTX 3080 12 GB vs Radeon RX 580

Intro

Compare all of that to the Radeon RX 580, which has clock speeds of 1257 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 memory. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 580		185 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 165 Watts (89%)

Memory Bandwidth

The GeForce RTX 3080 12 GB should theoretically perform quite a bit faster than the Radeon RX 580 in general. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 672154 (256%)

Texel Rate

The GeForce RTX 3080 12 GB should be much (approximately 95%) more effective at anisotropic filtering than the Radeon RX 580. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 171792 (95%)

Pixel Rate

The GeForce RTX 3080 12 GB will be much (more or less 251%) better at anti-aliasing than the Radeon RX 580, and capable of handling higher resolutions without losing too much performance. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 100896 (251%)

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 data (in units of megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, 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 are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.