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Radeon R9 390X 8G vs Radeon RX 5700

Intro

The Radeon R9 390X 8G comes with a GPU core clock speed of 1050 MHz, and the 8192 MB of GDDR5 memory runs at 1500 MHz through a 512-bit bus. It also is comprised of 2816 SPUs, 176 Texture Address Units, and 64 ROPs.

Compare that to the Radeon RX 5700, which features clock speeds of 1465 MHz on the GPU, and 1750 MHz on the 8096 MB of GDDR6 RAM. It features 2304 SPUs along with 144 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700 180 Watts
Radeon R9 390X 8G 275 Watts
Difference: 95 Watts (53%)

Memory Bandwidth

The Radeon RX 5700 should in theory be just a bit faster than the Radeon R9 390X 8G in general. (explain)

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

Texel Rate

The Radeon RX 5700 is a small bit (about 14%) more effective at texture filtering than the Radeon R9 390X 8G. (explain)

Radeon RX 5700 210960 Mtexels/sec
Radeon R9 390X 8G 184800 Mtexels/sec
Difference: 26160 (14%)

Pixel Rate

The Radeon RX 5700 should be quite a bit (approximately 40%) more effective at anti-aliasing than the Radeon R9 390X 8G, and also able to handle higher resolutions better. (explain)

Radeon RX 5700 93760 Mpixels/sec
Radeon R9 390X 8G 67200 Mpixels/sec
Difference: 26560 (40%)

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 5700

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 5700
Manufacturer AMD AMD
Year June 2015 July 2019
Code Name Grenada XT Navi 10
Memory 8192 MB 8096 MB
Core Speed 1050 MHz 1465 MHz
Memory Speed 6000 MHz 3500 GB/s
Power (Max TDP) 275 watts 180 watts
Bandwidth 384000 MB/sec 458752 MB/sec
Texel Rate 184800 Mtexels/sec 210960 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 93760 Mpixels/sec
Unified Shaders 2816 2304
Texture Mapping Units 176 144
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 data (measured in megabytes per second) that can be transferred past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling 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 the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon R9 390X 8G

Amazon.com

Check prices at:

Radeon RX 5700

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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