Radeon R9 390X 8G vs Radeon RX 5600

Intro

Compare those specifications to the Radeon RX 5600, which uses a 7 nm design. AMD has clocked the core frequency at 1375 MHz. The GDDR6 memory is set to run at a frequency of 1500 MHz on this model. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5600		150 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 125 Watts (83%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G is 30% faster than the Radeon RX 5600 overall, because of its greater bandwidth. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon RX 5600		294912 MB/sec
	Difference: 89088 (30%)

Texel Rate

The Radeon R9 390X 8G should be a small bit (about 5%) faster with regards to anisotropic filtering than the Radeon RX 5600. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon RX 5600		176000 Mtexels/sec
	Difference: 8800 (5%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 5600 is a better choice, by far. (explain)

Radeon RX 5600		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 largest amount of information (in units of MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.