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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 RAM. It features 2816 SPUs as well as 176 Texture Address Units and 64 Rasterization Operator Units.

Compare those specifications to the Radeon RX 5600 XT, which uses a 7 nm design. AMD has clocked the core frequency at 1375 MHz. The GDDR6 RAM runs at a speed of 1500 MHz on this particular card. It features 2304 SPUs as well as 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 will be 12% quicker than the Radeon RX 5600 XT overall, because of its higher bandwidth. (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 (about 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 using a high resolution is important to you, then the Radeon RX 5600 XT is the winner, by a large margin. (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

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Radeon RX 5600 XT

Amazon.com

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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: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high 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 texture units of the card by the core speed of the chip. The better the texel rate, 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 the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability 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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