Radeon R9 390X 8G vs Radeon RX 5500

Intro

Compare those specifications to the Radeon RX 5500, which comes with core speeds of 1670 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR6 RAM. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500		150 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 125 Watts (83%)

Memory Bandwidth

The Radeon R9 390X 8G should in theory be quite a bit faster than the Radeon RX 5500 in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
Radeon RX 5500		229376 MB/sec
	Difference: 154624 (67%)

Texel Rate

The Radeon R9 390X 8G will be quite a bit (about 26%) better at anisotropic filtering than the Radeon RX 5500. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
Radeon RX 5500		146960 Mtexels/sec
	Difference: 37840 (26%)

Pixel Rate

The Radeon R9 390X 8G should be a lot (approximately 26%) more effective at anti-aliasing than the Radeon RX 5500, and will be capable of handling higher resolutions better. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
Radeon RX 5500		53440 Mpixels/sec
	Difference: 13760 (26%)

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 (measured in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.