Radeon R9 390X 8G vs Radeon RX 5600 XT

Intro

Compare those specs to the Radeon RX 5600 XT, which has a clock speed of 1375 MHz and a GDDR6 memory speed of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 7 nm design. It is made up of 2304 SPUs, 144 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5600 XT		160 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 115 Watts (72%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G should be a bit faster than the Radeon RX 5600 XT in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon RX 5600 XT		344064 MB/sec
	Difference: 39936 (12%)

Texel Rate

The Radeon RX 5600 XT should be just a bit (about 7%) better at AF than the Radeon R9 390X 8G. (explain)

Radeon RX 5600 XT		198000 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 13200 (7%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 5600 XT is the winner, by a large margin. (explain)

Radeon RX 5600 XT		88000 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 20800 (31%)

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 (in units of MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 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 anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The better 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 maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.