Radeon RX 580 vs Radeon RX 7900 XT

Intro

Compare those specs to the Radeon RX 7900 XT, which features a core clock frequency of 1500 MHz and a GDDR6 memory speed of 2500 MHz. It also features a 320-bit memory bus, and makes use of a 5 nm design. It is made up of 5376 SPUs, 336 TAUs, and 192 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 580		185 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 115 Watts (62%)

Memory Bandwidth

Theoretically, the Radeon RX 7900 XT should perform quite a bit faster than the Radeon RX 580 in general. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 557056 (213%)

Texel Rate

The Radeon RX 7900 XT is a lot (about 178%) more effective at anisotropic filtering than the Radeon RX 580. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 322992 (178%)

Pixel Rate

The Radeon RX 7900 XT will be quite a bit (approximately 616%) more effective at full screen anti-aliasing than the Radeon RX 580, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 247776 (616%)

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 (measured in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core 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 fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.