Radeon RX 5700 XT vs Radeon RX 580

Intro

Compare those specifications to the Radeon RX 580, which has a GPU core clock speed of 1257 MHz, and 8192 MB of GDDR5 RAM running at 2000 MHz through a 256-bit bus. It also is comprised of 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

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

Performance-wise, the Radeon RX 5700 XT should in theory be much superior to the Radeon RX 580 in general. (explain)

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

Texel Rate

The Radeon RX 5700 XT will be much (approximately 42%) faster with regards to texture filtering than the Radeon RX 580. (explain)

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

Pixel Rate

The Radeon RX 5700 XT is a lot (about 155%) faster with regards to anti-aliasing than the Radeon RX 580, and able to handle higher resolutions while still performing well. (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 maximum amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.