Radeon RX 5700 XT vs Radeon RX 580

Intro

Compare all that to the Radeon RX 580, which comes with a core clock frequency of 1257 MHz and a GDDR5 memory frequency of 2000 MHz. It also uses a 256-bit memory bus, and makes use of a 14 nm design. It is made up of 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 580		185 Watts
Radeon RX 5700 XT		225 Watts
	Difference: 40 Watts (22%)

Memory Bandwidth

The Radeon RX 5700 XT should theoretically perform quite a bit faster than the Radeon RX 580 overall. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 196608 (75%)

Texel Rate

The Radeon RX 5700 XT should be quite a bit (approximately 42%) better at AF than the Radeon RX 580. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 75792 (42%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 5700 XT is superior to the Radeon RX 580, by far. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 62496 (155%)

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 information (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.