Radeon R9 380X vs Radeon R9 390X

When choosing between Radeon R9 380X and Radeon R9 390X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon R9 380X and Radeon R9 390X.

Main Specs

  Radeon R9 380X Radeon R9 390X
Power consumption (TDP) 190 Watt 275 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1 x 6-pin, 1 x 8-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R9 390X has 44% more power consumption, than Radeon R9 380X.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Both cards are used in Desktops.
  • Radeon R9 380X is build with GCN 3.0 architecture, and Radeon R9 390X - with GCN.
  • Radeon R9 380X and Radeon R9 390X are manufactured by 28 nm process technology.
  • Radeon R9 390X is 54 mm longer, than Radeon R9 380X.
  • Memory clock speed of Radeon R9 390X is 80 MHz higher, than Radeon R9 380X.

Game benchmarks

high / 1080p 35−40 50−55
ultra / 1080p 21−24 30−35
QHD / 1440p 16−18 24−27
4K / 2160p 10−11 14−16
low / 720p 60−65 75−80
medium / 1080p 40−45 55−60
The average gaming FPS of Radeon R9 390X in Assassin's Creed Odyssey is 34% more, than Radeon R9 380X.

Full Specs

  Radeon R9 380X Radeon R9 390X
Architecture GCN 3.0 GCN
Code name Antigua Grenada XT
Type Desktop Desktop
Release date 19 November 2015 16 June 2015
Pipelines 2048 2816
Boost Clock 970 MHz 1050 MHz
Transistor count 5,000 million 6,200 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 124.2 184.8
Floating-point performance 3,973 gflops 5,914 gflops
Length 221 mm 275 mm
Memory bus width 256 Bit 512 Bit
Memory clock speed 970 MHz 1050 MHz
Memory bandwidth 182.4 GB/s 384 GB/s
Shared memory -
Shader Model 6.3 6.3
OpenGL 4.5 4.6
OpenCL 2.0 2.0
Vulkan + +
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync + +
Bus support PCIe 3.0 PCIe 3.0
HDMI + +
Bitcoin / BTC (SHA256) 684 Mh/s
Eyefinity + +
HD3D +
PowerTune + +
TrueAudio + +
ZeroCore +
Mantle + +
Design reference reference
Bridgeless CrossFire + +
Number of Eyefinity displays 6 6
DisplayPort support + +
CrossFire + +
VCE + +
DDMA audio + +
Decred / DCR (Decred) 0.89 Gh/s
Ethereum / ETH (DaggerHashimoto) 20.63 Mh/s 27.5 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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