Radeon R9 390X 8G vs Radeon RX 5700

Intro

Compare all of that to the Radeon RX 5700, which features a core clock frequency of 1465 MHz and a GDDR6 memory frequency of 1750 MHz. It also uses a 256-bit bus, and uses a 7 nm design. It is comprised of 2304 SPUs, 144 TAUs, and 64 Raster Operation Units.

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

As far as performance goes, the Radeon RX 5700 should theoretically be a small bit superior to 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 will be a small bit (approximately 14%) faster with regards to anisotropic filtering 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

If running with a high resolution is important to you, then the Radeon RX 5700 is a better choice, and very much so. (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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses 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, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. 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 output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.