Radeon R9 390X 8G vs Radeon RX 5700 XT

Intro

Compare all that to the Radeon RX 5700 XT, which comes with GPU core speed of 1605 MHz, and 8096 MB of GDDR6 RAM running at 1750 MHz through a 256-bit bus. It also features 2560 Stream Processors, 160 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700 XT		225 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 50 Watts (22%)

Memory Bandwidth

The Radeon RX 5700 XT should theoretically perform a bit faster than the Radeon R9 390X 8G overall. (explain)

Radeon RX 5700 XT		458752 MB/sec
Radeon R9 390X 8G		384000 MB/sec
	Difference: 74752 (19%)

Texel Rate

The Radeon RX 5700 XT is a lot (about 39%) more effective at AF than the Radeon R9 390X 8G. (explain)

Radeon RX 5700 XT		256800 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 72000 (39%)

Pixel Rate

The Radeon RX 5700 XT should be quite a bit (approximately 53%) more effective at anti-aliasing than the Radeon R9 390X 8G, and capable of handling higher resolutions better. (explain)

Radeon RX 5700 XT		102720 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 35520 (53%)

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 data (in units of MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's 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 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 clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics 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 Render Output Units by the the card's 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.