GeForce 840M vs Radeon R9 M380

When comparing GeForce 840M and Radeon R9 M380, 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 GeForce 840M and Radeon R9 M380 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M and Radeon R9 M380 are Laptop Graphics Cards

Note: GeForce 840M and Radeon R9 M380 are only used in laptop graphics. They have 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 GeForce 840M or Radeon R9 M380 here:

Main Specs

  GeForce 840M Radeon R9 M380
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs No outputs
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  • GeForce 840M is connected by PCIe 3.0 x8, and Radeon R9 M380 uses PCIe 3.0 x16 interface.
  • GeForce 840M and Radeon R9 M380 have maximum RAM of 4 GB.
  • Both cards are used in Laptops.
  • GeForce 840M is build with Maxwell architecture, and Radeon R9 M380 - with GCN.
  • Core clock speed of GeForce 840M is 29 MHz higher, than Radeon R9 M380.
  • GeForce 840M and Radeon R9 M380 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 840M is 500 MHz higher, than Radeon R9 M380.

Game benchmarks

high / 1080p 1−2 16−18
ultra / 1080p 0−1 9−10
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 12−14 30−35
medium / 1080p 3−4 20−22
The average gaming FPS of Radeon R9 M380 in Assassin's Creed Odyssey is 283% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon R9 M380
Architecture Maxwell GCN
Code name N15S-GT Strato Pro GDDR5
Type Laptop Laptop
Release date 12 March 2014 16 June 2015
Pipelines 384 768
Core clock speed 1029 MHz 1000 MHz
Boost Clock 1124 MHz 1000 MHz
Transistor count 2,080 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 48.00
Floating-point performance 863.2 gflops 1,536 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 1500 MHz
Memory bandwidth 16.02 GB/s 96 GB/s
Shared memory - -
DirectX 12 (11_0)
Shader Model 5.1 6.3
OpenGL 4.5 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126
CUDA +
FreeSync +
Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0
Bitcoin / BTC (SHA256) 92 Mh/s 194 Mh/s
Laptop size medium sized medium sized
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
TrueAudio +
ZeroCore +
Switchable graphics +
Mantle +
GPU Boost 2.0
GameWorks +
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