Radeon 550X vs Radeon R9 380X

If you are going to buy a new graphics card and are choosing between Radeon 550X and Radeon R9 380X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon 550X stacks up against Radeon R9 380X, check out specs charts below.

Main Specs

  Radeon 550X Radeon R9 380X
Power consumption (TDP) 50 Watt 190 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 380X has 280% more power consumption, than Radeon 550X.
  • Radeon 550X is connected by PCIe 3.0 x8, and Radeon R9 380X uses PCIe 3.0 x16 interface.
  • Radeon R9 380X has 2 GB more memory, than Radeon 550X.
  • Both cards are used in Desktops.
  • Radeon 550X is build with GCN 4.0 architecture, and Radeon R9 380X - with GCN 3.0.
  • Radeon 550X is manufactured by 14 nm process technology, and Radeon R9 380X - by 28 nm process technology.
  • Radeon R9 380X is 76 mm longer, than Radeon 550X.
  • Memory clock speed of Radeon 550X is 6030 MHz higher, than Radeon R9 380X.

Game benchmarks

high / 1080p 7−8 35−40
ultra / 1080p 4−5 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 16−18 60−65
medium / 1080p 9−10 40−45
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 355% more, than Radeon 550X.

Full Specs

  Radeon 550X Radeon R9 380X
Architecture GCN 4.0 GCN 3.0
Code name Lexa Antigua
Type Desktop Desktop
Release date 27 March 2019 19 November 2015
Pipelines 512 2048
Core clock speed 1082 MHz
Boost Clock 1218 MHz 970 MHz
Transistor count 2,200 million 5,000 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 38.98 124.2
Floating-point performance 3,973 gflops
Length 145 mm 221 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 7000 MHz 970 MHz
Memory bandwidth 112.0 GB/s 182.4 GB/s
DirectX 12 (12_0)
Shader Model 6.4 6.3
OpenGL 4.6 4.5
OpenCL 2.0 2.0
Vulkan 1.2.131 +
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Eyefinity +
HD3D +
PowerTune +
TrueAudio +
ZeroCore +
Mantle +
Design reference
Bridgeless CrossFire +
Number of Eyefinity displays 6
DisplayPort support +
CrossFire +
VCE +
DDMA audio +
Decred / DCR (Decred) 0.89 Gh/s
Ethereum / ETH (DaggerHashimoto) 20.63 Mh/s
Zcash / ZEC (Equihash) 175 Sol/s
Compute units 32
Form factor full height / full length
High bandwidth memory (HBM) -
LiquidVR +
FRTC +
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