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

Intro

The Radeon R9 390X 8G comes with a core clock frequency of 1050 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 512-bit bus, and uses a 28 nm design. It is comprised of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

Compare those specifications to the Radeon RX 5700 XT 50th Anniversary Edition, which has GPU core speed of 1680 MHz, and 8096 MB of GDDR6 memory running at 14000 MHz through a 256-bit bus. It also is comprised of 2560 Stream Processors, 160 TAUs, and 64 Raster Operation Units.

Display Graphs

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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, in theory, should perform just 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 should be quite a bit (more or less 45%) better at AF 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 screen resolution is important to you, then the Radeon RX 5700 XT 50th Anniversary Edition is superior to the Radeon R9 390X 8G, 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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 can be processed per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - 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 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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