GeForce 920MX vs Radeon HD 7870M

When choosing between GeForce 920MX and Radeon HD 7870M, 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 920MX and Radeon HD 7870M.

GeForce 920MX and Radeon HD 7870M are Laptop Graphics Cards

Note: GeForce 920MX and Radeon HD 7870M 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 920MX or Radeon HD 7870M here:

Main Specs

  GeForce 920MX Radeon HD 7870M
Power consumption (TDP) 16 Watt 45 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Radeon HD 7870M has 181% more power consumption, than GeForce 920MX.
  • GeForce 920MX is connected by PCIe 3.0 x8, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
  • GeForce 920MX and Radeon HD 7870M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce 920MX is build with Maxwell architecture, and Radeon HD 7870M - with GCN.
  • Core clock speed of GeForce 920MX is 165 MHz higher, than Radeon HD 7870M.
  • GeForce 920MX and Radeon HD 7870M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870M is 2200 MHz higher, than GeForce 920MX.

Game benchmarks

high / 1080p 2−3 6−7
ultra / 1080p 0−1 4−5
QHD / 1440p 0−1 0−1
low / 720p 12−14 16−18
medium / 1080p 3−4 8−9
The average gaming FPS of Radeon HD 7870M in Assassin's Creed Odyssey is 66% more, than GeForce 920MX.

Full Specs

  GeForce 920MX Radeon HD 7870M
Architecture Maxwell GCN
Code name N16V-GMR Heathrow XT
Type Laptop Laptop
Release date 25 March 2015 24 April 2012
Pipelines 256 640
Core clock speed 965 MHz 800 MHz
Boost Clock 993 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 23.83 32.00
Floating-point performance 602.1 gflops 1,024 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 1800 MHz 4000 MHz
Memory bandwidth 14.4 GB/s 64 GB/s
Shared memory - -
DirectX 12 (11_0) 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA +
Bus support PCI Express 3.0
Laptop size large
Optimus +
GPU Boost 2.0
GameWorks +
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