Radeon RX 580 vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which makes use of a 5 nm design. AMD has set the core speed at 1500 MHz. The GDDR6 RAM is set to run at a frequency of 2500 MHz on this model. It features 5376 SPUs as well as 336 TAUs and 192 Rasterization Operator 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 a lot faster than the Radeon RX 580 overall. (explain)

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

Texel Rate

The Radeon RX 7900 XT will be a lot (about 178%) better at AF 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 should be much (more or less 616%) faster with regards to full screen anti-aliasing than the Radeon RX 580, and should be capable of handling higher screen resolutions better. (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 max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 can be processed in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.