Radeon R9 390X 8G vs Radeon RX 5700

Intro

Compare all that to the Radeon RX 5700, which has core clock speeds of 1465 MHz on the GPU, and 1750 MHz on the 8096 MB of GDDR6 RAM. It features 2304 SPUs as well as 144 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700		180 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 95 Watts (53%)

Memory Bandwidth

The Radeon RX 5700, in theory, should perform a bit faster than the Radeon R9 390X 8G in general. (explain)

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

Texel Rate

The Radeon RX 5700 should be just a bit (about 14%) more effective at AF than the Radeon R9 390X 8G. (explain)

Radeon RX 5700		210960 Mtexels/sec
Radeon R9 390X 8G		184800 Mtexels/sec
	Difference: 26160 (14%)

Pixel Rate

The Radeon RX 5700 is much (approximately 40%) faster with regards to anti-aliasing than the Radeon R9 390X 8G, and should be able to handle higher screen resolutions better. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon R9 390X 8G		67200 Mpixels/sec
	Difference: 26560 (40%)

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 data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR 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 is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the 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 graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number 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 is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.