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Radeon R9 390X 8G vs Radeon RX 5700

Intro

The Radeon R9 390X 8G makes use of a 28 nm design. AMD has set the core frequency at 1050 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this specific card. It features 2816 SPUs along with 176 TAUs and 64 Rasterization Operator Units.

Compare those specs to the Radeon RX 5700, which comes with a core clock speed of 1465 MHz and a GDDR6 memory frequency of 14000 MHz. It also makes use of a 256-bit memory bus, and uses a 7 nm design. It is made up of 2304 SPUs, 144 Texture Address Units, and 64 ROPs.

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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

In theory, the Radeon RX 5700 is 19% quicker than the Radeon R9 390X 8G overall, due to its greater data rate. (explain)

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

Texel Rate

The Radeon RX 5700 should be just a bit (approximately 14%) more effective at AF 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 is quite a bit (more or less 40%) better at anti-aliasing than the Radeon R9 390X 8G, and also will be capable of handling higher screen resolutions more effectively. (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

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.

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 28000 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 max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video 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 maximum number of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

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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