Radeon R9 380 vs Radeon R9 M485X

If you are going to buy a new graphics card and are choosing between Radeon R9 380 and Radeon R9 M485X, 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 R9 380 stacks up against Radeon R9 M485X, check out specs charts below.

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 380 Radeon R9 M485X
Power consumption (TDP) 190 Watt 250 Watt
Interface PCIe 3.0 x16 MXM-B (3.0)
Supplementary power connectors 2 x 6-pin 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 380.
  • Radeon R9 380 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 380.
  • Radeon R9 380 is used in Desktops, and Radeon R9 M485X - in Laptops.
  • Radeon R9 380 is build with GCN architecture, and Radeon R9 M485X - with GCN 3.
  • Radeon R9 380 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 380.

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 380 in Assassin's Creed Odyssey is 45% more, than Radeon R9 M485X.

Full Specs

  Radeon R9 380 Radeon R9 M485X
Architecture GCN GCN 3
Code name Tonga Pro Amethyst
Type Desktop Laptop
Release date 26 June 2015 14 May 2016
Pipelines 1792 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 108.6 92.54
Floating-point performance 3,476 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) 0.48 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 404 Mh/s
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) 0.66 Gh/s
Ethereum / ETH (DaggerHashimoto) 18 Mh/s
Zcash / ZEC (Equihash) 168.45 Sol/s
Compute units 28
Form factor full height / full length / dual slot
High bandwidth memory (HBM) -
LiquidVR +
FRTC +
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