Radeon R7 M340 vs Radeon R9 380X

When comparing Radeon R7 M340 and Radeon R9 380X, 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 R7 M340 and Radeon R9 380X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon R7 M340 is a Laptop Graphics Card

Note: Radeon R7 M340 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 R7 M340 here:

Main Specs

  Radeon R7 M340 Radeon R9 380X
Power consumption (TDP) 190 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R7 M340 is connected by PCIe 3.0 x8, and Radeon R9 380X uses PCIe 3.0 x16 interface.
  • Radeon R7 M340 and Radeon R9 380X have maximum RAM of 4 GB.
  • Radeon R7 M340 is used in Laptops, and Radeon R9 380X - in Desktops.
  • Radeon R7 M340 is build with GCN architecture, and Radeon R9 380X - with GCN 3.0.
  • Radeon R7 M340 and Radeon R9 380X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R7 M340 is 30 MHz higher, than Radeon R9 380X.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 1−2 60−65
medium / 1080p 0−1 40−45
The average gaming FPS of Radeon R9 380X in Assassin's Creed Odyssey is 6100% more, than Radeon R7 M340.

Full Specs

  Radeon R7 M340 Radeon R9 380X
Architecture GCN GCN 3.0
Code name Meso Pro DDR3 Antigua
Type Laptop Desktop
Release date 16 June 2015 19 November 2015
Pipelines 320 2048
Core clock speed 1021 MHz
Boost Clock 1021 MHz 970 MHz
Transistor count 950 million 5,000 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.16 124.2
Floating-point performance 549.1 gflops 3,973 gflops
Length 221 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1000 MHz 970 MHz
Memory bandwidth 16 GB/s 182.4 GB/s
Shared memory -
Shader Model 5.1 6.3
OpenGL 4.4 4.5
OpenCL Not Listed 2.0
Vulkan + +
Monero / XMR (CryptoNight) 0.58 kh/s
FreeSync + +
Bus support PCIe 3.0 PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 74 Mh/s
Eyefinity + +
HD3D + +
PowerTune + +
DualGraphics +
TrueAudio +
ZeroCore + +
Switchable graphics +
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 6 32
Form factor full height / full length
High bandwidth memory (HBM) -
LiquidVR +
FRTC +
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