Radeon R9 M390X vs Radeon RX 5700 XT 50th Anniversary Edition

Intro

Compare that to the Radeon RX 5700 XT 50th Anniversary Edition, which features a GPU core clock speed of 1680 MHz, and 8096 MB of GDDR6 memory running at 1750 MHz through a 256-bit bus. It also is made up of 2560 Stream Processors, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
Radeon RX 5700 XT 50th Anniversary Edition		235 Watts
	Difference: 110 Watts (88%)

Memory Bandwidth

The Radeon RX 5700 XT 50th Anniversary Edition, in theory, should be quite a bit faster than the Radeon R9 M390X in general. (explain)

Radeon RX 5700 XT 50th Anniversary Edition		458752 MB/sec
Radeon R9 M390X		160000 MB/sec
	Difference: 298752 (187%)

Texel Rate

The Radeon RX 5700 XT 50th Anniversary Edition should be quite a bit (about 190%) more effective at texture filtering than the Radeon R9 M390X. (explain)

Radeon RX 5700 XT 50th Anniversary Edition		268800 Mtexels/sec
Radeon R9 M390X		92544 Mtexels/sec
	Difference: 176256 (190%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 5700 XT 50th Anniversary Edition is a better choice, and very much so. (explain)

Radeon RX 5700 XT 50th Anniversary Edition		107520 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 84384 (365%)

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 past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.