GeForce GTX 680M SLI vs Radeon R7 M340

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 680M SLI and Radeon R7 M340. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 680M SLI and Radeon R7 M340. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GTX 680M SLI and Radeon R7 M340 are Laptop Graphics Cards

Note: GeForce GTX 680M SLI 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 680M SLI or Radeon R7 M340 here:

Main Specs

  GeForce GTX 680M SLI Radeon R7 M340
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 DDR3
Maximum RAM amount 2x 4 GB 4 GB
Display Connectors No outputs
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  • Radeon R7 M340 has 2 GB more memory, than GeForce GTX 680M SLI.
  • Both cards are used in Laptops.
  • GeForce GTX 680M SLI is build with Kepler architecture, and Radeon R7 M340 - with GCN.
  • Core clock speed of Radeon R7 M340 is 301 MHz higher, than GeForce GTX 680M SLI.
  • GeForce GTX 680M SLI and Radeon R7 M340 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 680M SLI is 2600 MHz higher, than Radeon R7 M340.

Game benchmarks

high / 1080p 35−40 0−1
ultra / 1080p 21−24
QHD / 1440p 16−18 0−1
4K / 2160p 10−11
low / 720p 60−65 1−2
medium / 1080p 40−45 0−1
The average gaming FPS of GeForce GTX 680M SLI in Assassin's Creed Odyssey is 6100% more, than Radeon R7 M340.

Full Specs

  GeForce GTX 680M SLI Radeon R7 M340
Architecture Kepler GCN
Code name N13E-GTX Meso Pro DDR3
Type Laptop Laptop
Release date 4 June 2012 16 June 2015
Pipelines 2688 320
Core clock speed 720 MHz 1021 MHz
Boost Clock 1021 MHz
Transistor count 950 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.16
Floating-point performance 549.1 gflops
Memory bus width 2x 256 Bit 128 Bit
Memory clock speed 3600 MHz 1000 MHz
Memory bandwidth 16 GB/s
Shared memory - -
DirectX DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.4
OpenCL Not Listed
Vulkan +
CUDA +
FreeSync +
Bus support PCIe 3.0
SLI options +
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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