GeForce 845M vs Mobility Radeon HD 4870 X2

When choosing between GeForce 845M 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 845M and Mobility Radeon HD 4870 X2.

GeForce 845M and Mobility Radeon HD 4870 X2 are Laptop Graphics Cards

Note: GeForce 845M 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 845M or Mobility Radeon HD 4870 X2 here:

Main Specs

  GeForce 845M Mobility Radeon HD 4870 X2
Power consumption (TDP) 45 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Memory type DDR3, GDDR5 GDDR3, GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce 845M is connected by PCIe 3.0 x8, and Mobility Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
  • GeForce 845M and Mobility Radeon HD 4870 X2 have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce 845M is build with Maxwell architecture, and Mobility Radeon HD 4870 X2 - with Terascale 1.
  • Core clock speed of GeForce 845M is 521 MHz higher, than Mobility Radeon HD 4870 X2.
  • GeForce 845M is manufactured by 28 nm process technology, and Mobility Radeon HD 4870 X2 - by 55 nm process technology.
  • Memory clock speed of GeForce 845M is 1112 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 3−4 9−10
ultra / 1080p 1−2 5−6
QHD / 1440p 0−1 0−1
low / 720p 14−16 21−24
medium / 1080p 6−7 12−14
The average gaming FPS of Mobility Radeon HD 4870 X2 in Assassin's Creed Odyssey is 100% more, than GeForce 845M.

Full Specs

  GeForce 845M Mobility Radeon HD 4870 X2
Architecture Maxwell Terascale 1
Code name GM108 M98-XT
Type Laptop Laptop
Release date 12 March 2014 9 January 2009
Pipelines 384 1600
Core clock speed 1071 MHz 550 MHz
Boost Clock 1150 MHz
Transistor count 1,870 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 37.63 22.00
Floating-point performance 883.7 gflops 2x 880.0 gflops
Memory bus width 64/128 Bit 256 Bit
Memory clock speed 2000 - 5000 MHz 888 MHz
Memory bandwidth 40.1 GB/s 89.6 GB/s
Shared memory - -
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.6 3.3
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA +
Bitcoin / BTC (SHA256) 76 Mh/s
Laptop size medium sized large
Optimus +
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