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Radeon R9 390 8G vs Radeon RX 5700

Intro

The Radeon R9 390 8G comes with a GPU core speed of 1000 MHz, and the 8192 MB of GDDR5 memory runs at 1500 MHz through a 512-bit bus. It also is made up of 2560 Stream Processors, 160 TAUs, and 64 ROPs.

Compare all of that to the Radeon RX 5700, which makes use of a 7 nm design. AMD has clocked the core speed at 1465 MHz. The GDDR6 memory is set to run at a frequency of 1750 MHz on this particular card. It features 2304 SPUs along with 144 TAUs and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Performance-wise, the Radeon RX 5700 should theoretically be a bit better than the Radeon R9 390 8G overall. (explain)

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

Texel Rate

The Radeon RX 5700 should be much (about 32%) more effective at anisotropic filtering than the Radeon R9 390 8G. (explain)

Radeon RX 5700 210960 Mtexels/sec
Radeon R9 390 8G 160000 Mtexels/sec
Difference: 50960 (32%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 5700 is the winner, by a large margin. (explain)

Radeon RX 5700 93760 Mpixels/sec
Radeon R9 390 8G 64000 Mpixels/sec
Difference: 29760 (47%)

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 390 8G

Amazon.com

Check prices at:

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 390 8G Radeon RX 5700
Manufacturer AMD AMD
Year June 2015 July 2019
Code Name Grenada PRO Navi 10
Memory 8192 MB 8096 MB
Core Speed 1000 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 160000 Mtexels/sec 210960 Mtexels/sec
Pixel Rate 64000 Mpixels/sec 93760 Mpixels/sec
Unified Shaders 2560 2304
Texture Mapping Units 160 144
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 largest amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, 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 can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon R9 390 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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