Radeon R9 390 8G vs Radeon RX 5500

Intro

Compare all of that to the Radeon RX 5500, which comes with core clock speeds of 1670 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR6 memory. It features 1408 SPUs along with 88 Texture Address Units 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 390 8G		275 Watts
	Difference: 125 Watts (83%)

Memory Bandwidth

Theoretically, the Radeon R9 390 8G should perform much faster than the Radeon RX 5500 in general. (explain)

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

Texel Rate

The Radeon R9 390 8G is just a bit (approximately 9%) faster with regards to texture filtering than the Radeon RX 5500. (explain)

Radeon R9 390 8G		160000 Mtexels/sec
Radeon RX 5500		146960 Mtexels/sec
	Difference: 13040 (9%)

Pixel Rate

The Radeon R9 390 8G should be just a bit (about 20%) faster with regards to AA than the Radeon RX 5500, and capable of handling higher screen resolutions better. (explain)

Radeon R9 390 8G		64000 Mpixels/sec
Radeon RX 5500		53440 Mpixels/sec
	Difference: 10560 (20%)

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 data (in units of MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.