Radeon R9 390 8G vs Radeon RX 5700

Intro

Compare those specs to the Radeon RX 5700, which uses a 7 nm design. AMD has clocked the core speed at 1465 MHz. The GDDR6 memory runs at a speed of 1750 MHz on this model. It features 2304 SPUs as well as 144 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

As far as performance goes, the Radeon RX 5700 should in theory be a bit superior to the Radeon R9 390 8G in general. (explain)

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

Texel Rate

The Radeon RX 5700 should be a lot (about 32%) more effective at texture filtering than the Radeon R9 390 8G. (explain)

Radeon RX 5700		210960 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 50960 (32%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 5700 is a better choice, by a large margin. (explain)

Radeon RX 5700		93760 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 29760 (47%)

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 in a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.