GeForce GTX 675MX vs Radeon R7 M340

When choosing between GeForce GTX 675MX and Radeon R7 M340, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 675MX and Radeon R7 M340.

GeForce GTX 675MX and Radeon R7 M340 are Laptop Graphics Cards

Note: GeForce GTX 675MX 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 675MX or Radeon R7 M340 here:

Main Specs

  GeForce GTX 675MX Radeon R7 M340
Power consumption (TDP) 100 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 DDR3
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 675MX is connected by MXM-B (3.0), and Radeon R7 M340 uses PCIe 3.0 x8 interface.
  • Radeon R7 M340 has 2 GB more memory, than GeForce GTX 675MX.
  • Both cards are used in Laptops.
  • GeForce GTX 675MX 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 675MX.
  • GeForce GTX 675MX and Radeon R7 M340 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 675MX is 800 MHz higher, than Radeon R7 M340.

Game benchmarks

high / 1080p 9−10 0−1
ultra / 1080p 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 1−2
medium / 1080p 12−14 0−1
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 2100% more, than Radeon R7 M340.

Full Specs

  GeForce GTX 675MX Radeon R7 M340
Architecture Kepler GCN
Code name N13E-GSR 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 1,256 gflops 549.1 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 1800 MHz 1000 MHz
Memory bandwidth 115.2 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) 63 Mh/s 74 Mh/s
Laptop size large
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 6
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