GeForce 840M vs Radeon HD 6930

When comparing GeForce 840M and Radeon HD 6930, 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 840M and Radeon HD 6930 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M is a Laptop Graphics Card

Note: GeForce 840M 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 GeForce 840M here:

Main Specs

  GeForce 840M Radeon HD 6930
Power consumption (TDP) 33 Watt 186 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors 2x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 1 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6930 has 463% more power consumption, than GeForce 840M.
  • GeForce 840M is connected by PCIe 3.0 x8, and Radeon HD 6930 uses PCIe 2.0 x16 interface.
  • GeForce 840M has 3 GB more memory, than Radeon HD 6930.
  • GeForce 840M is used in Laptops, and Radeon HD 6930 - in Desktops.
  • GeForce 840M is build with Maxwell architecture, and Radeon HD 6930 - with TeraScale 3.
  • Core clock speed of GeForce 840M is 279 MHz higher, than Radeon HD 6930.
  • GeForce 840M is manufactured by 28 nm process technology, and Radeon HD 6930 - by 40 nm process technology.
  • Memory clock speed of Radeon HD 6930 is 2800 MHz higher, than GeForce 840M.

Game benchmarks

high / 1080p 1−2 9−10
ultra / 1080p 0−1 5−6
QHD / 1440p 0−1 0−1
low / 720p 12−14 21−24
medium / 1080p 3−4 10−12
The average gaming FPS of Radeon HD 6930 in Assassin's Creed Odyssey is 133% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon HD 6930
Architecture Maxwell TeraScale 3
Code name N15S-GT Cayman
Type Laptop Desktop
Release date 12 March 2014 1 December 2011
Pipelines 384 1280
Core clock speed 1029 MHz 750 MHz
Boost Clock 1124 MHz
Transistor count 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 60.00
Floating-point performance 863.2 gflops 1,920.0 gflops
Length 220 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 2000 MHz 4800 MHz
Memory bandwidth 16.02 GB/s 153.6 GB/s
Shared memory -
DirectX 12 (11_0) 11.2 (11_0)
Shader Model 5.1 5.0
OpenGL 4.5 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126 N/A
CUDA +
Bus support PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized
Optimus +
GPU Boost 2.0
GameWorks +
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