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Radeon R9 390X 8G vs Radeon RX 5700 XT 50th Anniversary Edition

Intro

The Radeon R9 390X 8G makes use of a 28 nm design. AMD has set the core speed at 1050 MHz. The GDDR5 memory works at a speed of 1500 MHz on this card. It features 2816 SPUs as well as 176 Texture Address Units and 64 ROPs.

Compare those specifications to the Radeon RX 5700 XT 50th Anniversary Edition, which features a clock speed of 1680 MHz and a GDDR6 memory speed of 14000 MHz. It also uses a 256-bit memory bus, and makes use of a 7 nm design. It features 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700 XT 50th Anniversary Edition 235 Watts
Radeon R9 390X 8G 275 Watts
Difference: 40 Watts (17%)

Memory Bandwidth

The Radeon RX 5700 XT 50th Anniversary Edition should theoretically perform a bit faster than the Radeon R9 390X 8G overall. (explain)

Radeon RX 5700 XT 50th Anniversary Edition 458752 MB/sec
Radeon R9 390X 8G 384000 MB/sec
Difference: 74752 (19%)

Texel Rate

The Radeon RX 5700 XT 50th Anniversary Edition is a lot (more or less 45%) more effective at texture filtering than the Radeon R9 390X 8G. (explain)

Radeon RX 5700 XT 50th Anniversary Edition 268800 Mtexels/sec
Radeon R9 390X 8G 184800 Mtexels/sec
Difference: 84000 (45%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 5700 XT 50th Anniversary Edition is a better choice, by far. (explain)

Radeon RX 5700 XT 50th Anniversary Edition 107520 Mpixels/sec
Radeon R9 390X 8G 67200 Mpixels/sec
Difference: 40320 (60%)

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 5700 XT 50th Anniversary Edition

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 5700 XT 50th Anniversary Edition
Manufacturer AMD AMD
Year June 2015 July 2019
Code Name Grenada XT Navi 10
Memory 8192 MB 8096 MB
Core Speed 1050 MHz 1680 MHz
Memory Speed 6000 MHz 28000 GB/s
Power (Max TDP) 275 watts 235 watts
Bandwidth 384000 MB/sec 458752 MB/sec
Texel Rate 184800 Mtexels/sec 268800 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 107520 Mpixels/sec
Unified Shaders 2816 2560
Texture Mapping Units 176 160
Render Output Units 64 64
Bus Type GDDR5 GDDR6
Bus Width 512-bit 256-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 past the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially 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 5700 XT 50th Anniversary Edition

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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