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Radeon R9 390X 8G vs Radeon RX 5600 XT

Intro

The Radeon R9 390X 8G features a GPU core clock speed of 1050 MHz, and the 8192 MB of GDDR5 RAM is set to run at 1500 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 176 Texture Address Units, and 64 ROPs.

Compare all that to the Radeon RX 5600 XT, which features a GPU core clock speed of 1375 MHz, and 6144 MB of GDDR6 memory set to run at 14000 MHz through a 192-bit bus. It also features 2304 SPUs, 144 TAUs, 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

Performance-wise, the Radeon R9 390X 8G should theoretically be a small bit superior to 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 should be a bit (approximately 7%) better at AF 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 is much (more or less 31%) more effective at full screen anti-aliasing than the Radeon R9 390X 8G, and will be capable of handling higher screen resolutions better. (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 information (measured in MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. 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 lots of other factors, especially the memory bandwidth - the lower the 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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