Radeon RX 590 vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which has a clock frequency of 1500 MHz and a GDDR6 memory speed of 2500 MHz. It also makes use of a 320-bit memory bus, and makes use of a 5 nm design. It features 5376 SPUs, 336 TAUs, and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 125 Watts (71%)

Memory Bandwidth

In theory, the Radeon RX 7900 XT should perform much faster than the Radeon RX 590 overall. (explain)

Radeon RX 7900 XT		819200 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 557056 (213%)

Texel Rate

The Radeon RX 7900 XT is much (approximately 138%) faster with regards to texture filtering than the Radeon RX 590. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon RX 590		211536 Mtexels/sec
	Difference: 292464 (138%)

Pixel Rate

The Radeon RX 7900 XT will be a lot (more or less 513%) more effective at anti-aliasing than the Radeon RX 590, and able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon RX 590		47008 Mpixels/sec
	Difference: 240992 (513%)

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 information (in units of MB per second) that can be transported over the external memory interface in one second. It's 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 again. If 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 high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.