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Radeon R9 380 4G vs Radeon RX 550

Intro

The Radeon R9 380 4G comes with a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1792 SPUs, 112 TAUs, and 32 ROPs.

Compare that to the Radeon RX 550, which features a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also features 512 SPUs, 32 TAUs, and 16 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 380 4G 8837 points
Radeon RX 550 3507 points
Difference: 5330 (152%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550 50 Watts
Radeon R9 380 4G 190 Watts
Difference: 140 Watts (280%)

Memory Bandwidth

The Radeon R9 380 4G should theoretically perform much faster than the Radeon RX 550 in general. (explain)

Radeon R9 380 4G 182400 MB/sec
Radeon RX 550 114688 MB/sec
Difference: 67712 (59%)

Texel Rate

The Radeon R9 380 4G is quite a bit (approximately 209%) better at anisotropic filtering than the Radeon RX 550. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
Radeon RX 550 35200 Mtexels/sec
Difference: 73440 (209%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 380 4G is a better choice, by a large margin. (explain)

Radeon R9 380 4G 31040 Mpixels/sec
Radeon RX 550 17600 Mpixels/sec
Difference: 13440 (76%)

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 380 4G

Amazon.com

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Radeon RX 550

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 380 4G Radeon RX 550
Manufacturer AMD AMD
Year June 2015 April 2017
Code Name Antigua PRO Polaris 12
Memory 4096 MB 2048 MB
Core Speed 970 MHz 1100 MHz
Memory Speed 5700 MHz 7000 MHz
Power (Max TDP) 190 watts 50 watts
Bandwidth 182400 MB/sec 114688 MB/sec
Texel Rate 108640 Mtexels/sec 35200 Mtexels/sec
Pixel Rate 31040 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 1792 512
Texture Mapping Units 112 32
Render Output Units 32 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 28 nm 14 nm
Transistors 5000 million 2200 million
Bus PCIe 3.0 ×16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 12.0
OpenGL Version OpenGL 4.5 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better 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 are processed in one second. This number is calculated by multiplying the total texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon R9 380 4G

Amazon.com

Check prices at:

Radeon RX 550

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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