Radeon RX 580 vs Radeon RX 6700 XT

Intro

Compare all that to the Radeon RX 6700 XT, which has a core clock frequency of 2321 MHz and a GDDR6 memory speed of 2000 MHz. It also makes use of a 192-bit memory bus, and uses a 7 nm design. It is comprised of 2560 SPUs, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 580		185 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 45 Watts (24%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6700 XT should be 50% faster than the Radeon RX 580 overall, because of its greater bandwidth. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 131072 (50%)

Texel Rate

The Radeon RX 6700 XT will be a lot (approximately 105%) faster with regards to anisotropic filtering than the Radeon RX 580. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 190352 (105%)

Pixel Rate

The Radeon RX 6700 XT will be much (about 269%) more effective at anti-aliasing than the Radeon RX 580, and will be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 108320 (269%)

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: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics 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 most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. 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 get to the maximum fill rate.