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Radeon R9 390 8G vs Radeon RX 5700

Intro

The Radeon R9 390 8G features clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2560 SPUs as well as 160 TAUs and 64 Rasterization Operator Units.

Compare all of that to the Radeon RX 5700, which features a 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 features 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 390 8G 275 Watts
Difference: 95 Watts (53%)

Memory Bandwidth

The Radeon RX 5700 should in theory be a bit faster than the Radeon R9 390 8G in general. (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 quite a bit (about 32%) better at texture 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

The Radeon RX 5700 will be much (approximately 47%) better at AA than the Radeon R9 390 8G, and able to handle higher screen resolutions while still performing well. (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

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 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 28000 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 max amount of data (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's 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 rate is also dependant on quite a few other factors, most notably 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 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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