Radeon R9 390X 8G vs Radeon RX 5700 XT

Intro

Compare those specs to the Radeon RX 5700 XT, which features a clock speed of 1605 MHz and a GDDR6 memory speed of 1750 MHz. It also makes use of a 256-bit memory bus, and uses a 7 nm design. It is made up of 2560 SPUs, 160 Texture Address Units, and 64 Raster Operation Units.

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 be a small bit faster than the Radeon R9 390X 8G in general. (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 should be a lot (approximately 39%) faster with regards to texture filtering 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 a lot (about 53%) more effective at AA than the Radeon R9 390X 8G, and capable of handling higher resolutions more effectively. (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 max amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

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