GeForce GTX 670MX vs Radeon R7 M340

When comparing GeForce GTX 670MX and Radeon R7 M340, 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 GTX 670MX and Radeon R7 M340 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 670MX and Radeon R7 M340 are Laptop Graphics Cards

Note: GeForce GTX 670MX and Radeon R7 M340 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 GTX 670MX or Radeon R7 M340 here:

Main Specs

  GeForce GTX 670MX Radeon R7 M340
Power consumption (TDP) 75 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 DDR3
Maximum RAM amount 3 GB 4 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 670MX is connected by PCIe 3.0 x16, and Radeon R7 M340 uses PCIe 3.0 x8 interface.
  • Radeon R7 M340 has 1 GB more memory, than GeForce GTX 670MX.
  • Both cards are used in Laptops.
  • GeForce GTX 670MX is build with Kepler architecture, and Radeon R7 M340 - with GCN.
  • Core clock speed of Radeon R7 M340 is 421 MHz higher, than GeForce GTX 670MX.
  • GeForce GTX 670MX and Radeon R7 M340 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 670MX is 400 MHz higher, than Radeon R7 M340.

Game benchmarks

high / 1080p 8−9 0−1
ultra / 1080p 5−6
QHD / 1440p 0−1 0−1
low / 720p 20−22 1−2
medium / 1080p 10−12 0−1
The average gaming FPS of GeForce GTX 670MX in Assassin's Creed Odyssey is 2000% more, than Radeon R7 M340.

Full Specs

  GeForce GTX 670MX Radeon R7 M340
Architecture Kepler GCN
Code name N13E-GR Meso Pro DDR3
Type Laptop Laptop
Release date 1 October 2012 16 June 2015
Pipelines 960 320
Core clock speed 600 MHz 1021 MHz
Boost Clock 1021 MHz
Transistor count 3,540 million 950 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 48.0 billion/sec 17.16
Floating-point performance 1,154 gflops 549.1 gflops
Memory bus width 192 Bit 128 Bit
Memory clock speed 1400 MHz 1000 MHz
Memory bandwidth 67.2 GB/s 16 GB/s
Shared memory - -
DirectX 12 API
Shader Model 5.1 5.1
OpenGL 4.5 4.4
OpenCL 1.1 Not Listed
Vulkan 1.1.126 +
CUDA +
FreeSync +
CUDA cores 960
Bus support PCI Express 2.0 PCIe 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 74 Mh/s
Laptop size large
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 6
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