GeForce 920M vs Mobility Radeon HD 4870 X2

When choosing between GeForce 920M and Mobility Radeon HD 4870 X2, 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 920M and Mobility Radeon HD 4870 X2.

GeForce 920M and Mobility Radeon HD 4870 X2 are Laptop Graphics Cards

Note: GeForce 920M and Mobility Radeon HD 4870 X2 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 920M or Mobility Radeon HD 4870 X2 here:

Main Specs

  GeForce 920M Mobility Radeon HD 4870 X2
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Memory type DDR3 GDDR3, GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce 920M is connected by PCIe 3.0 x8, and Mobility Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
  • GeForce 920M has 2 GB more memory, than Mobility Radeon HD 4870 X2.
  • Both cards are used in Laptops.
  • GeForce 920M is build with Kepler architecture, and Mobility Radeon HD 4870 X2 - with Terascale 1.
  • Core clock speed of GeForce 920M is 404 MHz higher, than Mobility Radeon HD 4870 X2.
  • GeForce 920M is manufactured by 28 nm process technology, and Mobility Radeon HD 4870 X2 - by 55 nm process technology.
  • Memory clock speed of GeForce 920M is 912 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 0−1 9−10
ultra / 1080p 5−6
QHD / 1440p 0−1 0−1
low / 720p 1−2 21−24
medium / 1080p 0−1 12−14
The average gaming FPS of Mobility Radeon HD 4870 X2 in Assassin's Creed Odyssey is 2100% more, than GeForce 920M.

Full Specs

  GeForce 920M Mobility Radeon HD 4870 X2
Architecture Kepler Terascale 1
Code name N16V-GM-S M98-XT
Type Laptop Laptop
Release date 27 January 2015 9 January 2009
Pipelines 384 1600
Core clock speed 954 MHz 550 MHz
Transistor count 915 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 30.53 22.00
Floating-point performance 297.6 gflops 2x 880.0 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 1800 MHz 888 MHz
Memory bandwidth 14.4 GB/s 89.6 GB/s
Shared memory - -
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.5 3.3
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 40 Mh/s
Laptop size large
Optimus +
GPU Boost 2.0
GameWorks +
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