GeForce GTX 870M vs Mobility Radeon HD 4870

When comparing GeForce GTX 870M and Mobility Radeon HD 4870, 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 GTX 870M and Mobility Radeon HD 4870 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 870M and Mobility Radeon HD 4870 are Laptop Graphics Cards

Note: GeForce GTX 870M and Mobility Radeon HD 4870 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 GTX 870M or Mobility Radeon HD 4870 here:

Main Specs

  GeForce GTX 870M Mobility Radeon HD 4870
Power consumption (TDP) 100 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 6 GB 1 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 870M is connected by MXM-B (3.0), and Mobility Radeon HD 4870 uses PCIe 2.0 x16 interface.
  • GeForce GTX 870M has 5 GB more memory, than Mobility Radeon HD 4870.
  • Both cards are used in Laptops.
  • GeForce GTX 870M is build with Kepler architecture, and Mobility Radeon HD 4870 - with Terascale 1.
  • Core clock speed of GeForce GTX 870M is 391 MHz higher, than Mobility Radeon HD 4870.
  • GeForce GTX 870M is manufactured by 28 nm process technology, and Mobility Radeon HD 4870 - by 55 nm process technology.

Game benchmarks

high / 1080p 16−18 7−8
ultra / 1080p 10−11 4−5
QHD / 1440p 4−5 0−1
low / 720p 35−40 16−18
medium / 1080p 21−24 8−9
The average gaming FPS of GeForce GTX 870M in Assassin's Creed Odyssey is 133% more, than Mobility Radeon HD 4870.

Full Specs

  GeForce GTX 870M Mobility Radeon HD 4870
Architecture Kepler Terascale 1
Code name N15P-GT M98-XT
Type Laptop Laptop
Release date 12 March 2014 9 January 2009
Pipelines 1344 800
Core clock speed 941 MHz 550 MHz
Boost Clock 967 MHz
Transistor count 3,540 million 956 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 108.3 22.00
Floating-point performance 2,599 gflops 880.0 gflops
Memory bus width 192 Bit 256 Bit
Memory clock speed 888 MHz
Memory bandwidth 120.0 GB/s 56.83 GB/s
Shared memory - -
DirectX 12 (11_0) 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.5 3.3
OpenCL 1.1 1.1
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 1344
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 82 Mh/s
Laptop size large large
Standard memory configuration GDDR5
eDP 1.2 signal support Up to 3840x2160
LVDS signal support Up to 1920x1200
DisplayPort Multimode (DP++) support Up to 3840x2160
HDCP content protection +
7.1 channel HD audio on HDMI +
TrueHD and DTS-HD audio bitstreaming +
H.264, VC1, MPEG2 1080p video decoder +
Optimus +
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