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

Intro

Compare those specs to the Radeon RX 5700 XT 50th Anniversary Edition, which has GPU core speed of 1680 MHz, and 8096 MB of GDDR6 memory running at 1750 MHz through a 256-bit bus. It also features 2560 SPUs, 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 should in theory be quite a bit faster than the Radeon R9 M390X overall. (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 is quite a bit (more or less 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

The Radeon RX 5700 XT 50th Anniversary Edition should be a lot (approximately 365%) faster with regards to FSAA than the Radeon R9 M390X, and also able to handle higher screen resolutions better. (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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 figure is calculated by multiplying the total amount of 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock 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 rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.