Radeon R9 380X vs Radeon R9 M485X

When comparing Radeon R9 380X and Radeon R9 M485X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon R9 380X and Radeon R9 M485X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon R9 M485X is a Laptop Graphics Card

Note: Radeon R9 M485X is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon R9 M485X here:

Main Specs

  Radeon R9 380X Radeon R9 M485X
Power consumption (TDP) 190 Watt 250 Watt
Interface PCIe 3.0 x16 MXM-B (3.0)
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 4 GB 8 GB MB
Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon R9 M485X has 31% more power consumption, than Radeon R9 380X.
  • Radeon R9 380X is connected by PCIe 3.0 x16, and Radeon R9 M485X uses MXM-B (3.0) interface.
  • Radeon R9 M485X has 4 GB more memory, than Radeon R9 380X.
  • Radeon R9 380X is used in Desktops, and Radeon R9 M485X - in Laptops.
  • Radeon R9 380X is build with GCN 3.0 architecture, and Radeon R9 M485X - with GCN 3.
  • Radeon R9 380X and Radeon R9 M485X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R9 M485X is 4030 MHz higher, than Radeon R9 380X.

Game benchmarks

high / 1080p 35−40 24−27
ultra / 1080p 21−24 14−16
QHD / 1440p 16−18 10−11
4K / 2160p 10−11 6−7
low / 720p 60−65 45−50
medium / 1080p 40−45 30−35
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 45% more, than Radeon R9 M485X.

Full Specs

  Radeon R9 380X Radeon R9 M485X
Architecture GCN 3.0 GCN 3
Code name Antigua Amethyst
Type Desktop Laptop
Release date 19 November 2015 14 May 2016
Pipelines 2048 2048
Core clock speed 723 MHz
Boost Clock 970 MHz
Transistor count 5,000 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 124.2 92.54
Floating-point performance 3,973 gflops 2,961 gflops
Length 221 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 970 MHz 5000 MHz
Memory bandwidth 182.4 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (12_0)
Shader Model 6.3 6.3
OpenGL 4.5 4.6
OpenCL 2.0 2.0
Vulkan + 1.2.131
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Laptop size large
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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