GeForce RTX 3090 vs Radeon RX 580

Intro

Compare all that to the Radeon RX 580, which comes with core clock speeds of 1257 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs as well as 144 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 580		185 Watts
GeForce RTX 3090		350 Watts
	Difference: 165 Watts (89%)

Memory Bandwidth

The GeForce RTX 3090 should theoretically be a lot faster than the Radeon RX 580 overall. (explain)

GeForce RTX 3090		958668 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 696524 (266%)

Texel Rate

The GeForce RTX 3090 should be a lot (more or less 153%) better at anisotropic filtering than the Radeon RX 580. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 276552 (153%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 3090 is a better choice, by a large margin. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 116016 (288%)

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 (counted in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.