GeForce 840M vs GeForce GTX 965M

When choosing between GeForce 840M and GeForce GTX 965M, 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 840M and GeForce GTX 965M.

GeForce 840M and GeForce GTX 965M are Laptop Graphics Cards

Note: GeForce 840M and GeForce GTX 965M 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 840M or GeForce GTX 965M here:

Main Specs

  GeForce 840M GeForce GTX 965M
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8 MXM-B (3.0)
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs No outputs
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  • GeForce 840M is connected by PCIe 3.0 x8, and GeForce GTX 965M uses MXM-B (3.0) interface.
  • GeForce 840M and GeForce GTX 965M have maximum RAM of 4 GB.
  • Both cards are used in Laptops.
  • GeForce 840M and GeForce GTX 965M are build with Maxwell architecture.
  • Core clock speed of GeForce 840M is 85 MHz higher, than GeForce GTX 965M.
  • GeForce 840M and GeForce GTX 965M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 965M is 500 MHz higher, than GeForce 840M.

Game benchmarks

high / 1080p 1−2 20−22
ultra / 1080p 0−1 12−14
QHD / 1440p 0−1 6−7
4K / 2160p 5−6
low / 720p 12−14 35−40
medium / 1080p 3−4 24−27
The average gaming FPS of GeForce GTX 965M in Assassin's Creed Odyssey is 366% more, than GeForce 840M.

Full Specs

  GeForce 840M GeForce GTX 965M
Architecture Maxwell Maxwell
Code name N15S-GT N16E-GS, N16E-GR
Type Laptop Laptop
Release date 12 March 2014 5 January 2015
Pipelines 384 1024
Core clock speed 1029 MHz 944 MHz
Boost Clock 1124 MHz 950 / 1151 MHz
Transistor count 2,940 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 73.60
Floating-point performance 863.2 gflops 2,355 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 2500 MHz
Memory bandwidth 16.02 GB/s 80 GB/s
Shared memory - -
G-SYNC support +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.5 4.5
OpenCL 1.2 1.1
Vulkan 1.1.126 1.1
CUDA + +
CUDA cores 1024
Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 92 Mh/s 226 Mh/s
Laptop size medium sized large
DisplayPort Multimode (DP++) support +
H.264, VC1, MPEG2 1080p video decoder +
Optimus + +
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0 2.0
GameWorks + +
BatteryBoost +
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