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Radeon R9 390X 8G vs Radeon RX 5600 XT

Intro

The Radeon R9 390X 8G has core speeds of 1050 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 memory. It features 2816 SPUs as well as 176 TAUs and 64 ROPs.

Compare that to the Radeon RX 5600 XT, which comes with GPU clock speed of 1375 MHz, and 6144 MB of GDDR6 RAM running at 14000 MHz through a 192-bit bus. It also is comprised of 2304 Stream Processors, 144 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 5600 XT 160 Watts
Radeon R9 390X 8G 275 Watts
Difference: 115 Watts (72%)

Memory Bandwidth

Theoretically, the Radeon R9 390X 8G should perform just a bit faster than the Radeon RX 5600 XT in general. (explain)

Radeon R9 390X 8G 384000 MB/sec
Radeon RX 5600 XT 344064 MB/sec
Difference: 39936 (12%)

Texel Rate

The Radeon RX 5600 XT is a bit (approximately 7%) faster with regards to anisotropic filtering than the Radeon R9 390X 8G. (explain)

Radeon RX 5600 XT 198000 Mtexels/sec
Radeon R9 390X 8G 184800 Mtexels/sec
Difference: 13200 (7%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 5600 XT is the winner, and very much so. (explain)

Radeon RX 5600 XT 88000 Mpixels/sec
Radeon R9 390X 8G 67200 Mpixels/sec
Difference: 20800 (31%)

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

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Radeon R9 390X 8G

Amazon.com

Check prices at:

Radeon RX 5600 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 390X 8G Radeon RX 5600 XT
Manufacturer AMD AMD
Year June 2015 January 2020
Code Name Grenada XT Navi 10 XLE
Memory 8192 MB 6144 MB
Core Speed 1050 MHz 1375 MHz
Memory Speed 6000 MHz 28000 GB/s
Power (Max TDP) 275 watts 160 watts
Bandwidth 384000 MB/sec 344064 MB/sec
Texel Rate 184800 Mtexels/sec 198000 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 88000 Mpixels/sec
Unified Shaders 2816 2304
Texture Mapping Units 176 144
Render Output Units 64 64
Bus Type GDDR5 GDDR6
Bus Width 512-bit 192-bit
Fab Process 28 nm 7 nm
Transistors 6200 million 10300 million
Bus PCIe 3.0 ×16 PCIe 4.0 ×16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon R9 390X 8G

Amazon.com

Check prices at:

Radeon RX 5600 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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