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Radeon R9 390X 8G vs Radeon RX 5600 XT

Intro

The Radeon R9 390X 8G features clock 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 Rasterization Operator Units.

Compare all that to the Radeon RX 5600 XT, which features a core clock frequency of 1375 MHz and a GDDR6 memory speed of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 7 nm design. It is made up of 2304 SPUs, 144 Texture Address Units, and 64 ROPs.

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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 speaking, the Radeon R9 390X 8G is 12% faster than the Radeon RX 5600 XT overall, because of its higher data rate. (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 will be a small bit (about 7%) faster with regards to texture 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

The Radeon RX 5600 XT should be quite a bit (more or less 31%) more effective at AA than the Radeon R9 390X 8G, and also able to handle higher screen resolutions more effectively. (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 3000 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 max amount of information (counted in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum 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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