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Radeon R9 390X 8G vs Radeon RX 5600 XT

Intro

The Radeon R9 390X 8G makes use of a 28 nm design. AMD has set the core frequency at 1050 MHz. The GDDR5 memory is set to run at a speed of 1500 MHz on this specific model. It features 2816 SPUs as well as 176 Texture Address Units and 64 Rasterization Operator Units.

Compare those specs to the Radeon RX 5600 XT, which comes with GPU core speed of 1375 MHz, and 6144 MB of GDDR6 memory running at 14000 MHz through a 192-bit bus. It also features 2304 SPUs, 144 Texture Address Units, and 64 Raster Operation Units.

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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

The Radeon R9 390X 8G should in theory perform a little bit faster than the Radeon RX 5600 XT overall. (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 should be a small bit (approximately 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 much (about 31%) faster with regards to FSAA than the Radeon R9 390X 8G, and also able to handle higher screen resolutions while still performing well. (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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate 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 drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to 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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