Radeon R6 M340DX vs Radeon R9 280X

When comparing Radeon R6 M340DX and Radeon R9 280X, 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 R6 M340DX and Radeon R9 280X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon R6 M340DX Check Price
Radeon R9 280X Check Price

Radeon R6 M340DX is a Laptop Graphics Card

Note: Radeon R6 M340DX 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 R6 M340DX here:

Radeon R6 M340DX Laptops

Main Specs

  Radeon R6 M340DX Radeon R9 280X
Power consumption (TDP) 250 Watt
Interface IGP PCIe 3.0 x16
Supplementary power connectors 1 x 6-pin + 1 x 8-pin
Memory type DDR3 GDDR5
Maximum RAM amount 3 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon R6 M340DX is connected by IGP, and Radeon R9 280X uses PCIe 3.0 x16 interface.
  • Radeon R6 M340DX is used in Laptops, and Radeon R9 280X - in Desktops.
  • Radeon R6 M340DX and Radeon R9 280X are build with GCN architecture.
  • Radeon R6 M340DX and Radeon R9 280X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 2−3 35−40
ultra / 1080p 2−3 21−24
QHD / 1440p 0−1 16−18
4K / 2160p − 10−11
low / 720p 10−11 60−65
medium / 1080p 3−4 40−45
The average gaming FPS of Radeon R9 280X in Assassin's Creed Odyssey is 925% more, than Radeon R6 M340DX.

Full Specs

  Radeon R6 M340DX Radeon R9 280X
Architecture GCN GCN
Code name Jet Thaiti XTL
Type Laptop Desktop
Release date 3 June 2015 8 October 2013
Pipelines 704 2048
Boost Clock 1030 MHz 1000 MHz
Transistor count 690 million 4,313 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 24.72 128.0
Floating-point performance 4,096 gflops
Length 275 mm
Memory bus width 384 Bit
Memory bandwidth 288 GB/s
Shared memory - -
DirectX 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.6
OpenCL 1.2 1.2
Vulkan 1.2.131 +
Monero / XMR (CryptoNight) 0.5 kh/s
FreeSync +
Bus support PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 494 Mh/s
Laptop size medium sized
Eyefinity +
HD3D +
TrueAudio +
Design reference
DisplayPort support +
CrossFire +
DDMA audio +
Decred / DCR (Decred) 1.07 Gh/s
Ethereum / ETH (DaggerHashimoto) 14.42 Mh/s
Zcash / ZEC (Equihash) 285 Sol/s
AppAcceleration +
LiquidVR +
TressFX +
UVD +
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