Radeon RX 590 vs Radeon RX 6800 XT

Intro

Compare all of that to the Radeon RX 6800 XT, which has a core clock speed of 1825 MHz and a GDDR6 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and uses a 7 nm design. It is comprised of 4608 SPUs, 288 TAUs, and 128 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 125 Watts (71%)

Memory Bandwidth

The Radeon RX 6800 XT should in theory be much faster than the Radeon RX 590 in general. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 262144 (100%)

Texel Rate

The Radeon RX 6800 XT will be a lot (about 148%) better at AF than the Radeon RX 590. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 590		211536 Mtexels/sec
	Difference: 314064 (148%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6800 XT is the winner, by far. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 590		47008 Mpixels/sec
	Difference: 186592 (397%)

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 (measured in MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock 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 rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.