Radeon R9 M390X vs Radeon RX 5500

Intro

Compare those specs to the Radeon RX 5500, which uses a 7 nm design. AMD has set the core speed at 1670 MHz. The GDDR6 memory runs at a frequency of 1750 MHz on this model. It features 1408 SPUs as well as 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
Radeon RX 5500		150 Watts
	Difference: 25 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5500 will be 43% faster than the Radeon R9 M390X in general, due to its higher bandwidth. (explain)

Radeon RX 5500		229376 MB/sec
Radeon R9 M390X		160000 MB/sec
	Difference: 69376 (43%)

Texel Rate

The Radeon RX 5500 is a lot (about 59%) better at AF than the Radeon R9 M390X. (explain)

Radeon RX 5500		146960 Mtexels/sec
Radeon R9 M390X		92544 Mtexels/sec
	Difference: 54416 (59%)

Pixel Rate

The Radeon RX 5500 should be much (more or less 131%) faster with regards to AA than the Radeon R9 M390X, and capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 5500		53440 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 30304 (131%)

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 (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.