GeForce GTX 770M vs Mobility Radeon HD 3870 X2

When choosing between GeForce GTX 770M and Mobility Radeon HD 3870 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 GTX 770M and Mobility Radeon HD 3870 X2.

GeForce GTX 770M and Mobility Radeon HD 3870 X2 are Laptop Graphics Cards

Note: GeForce GTX 770M and Mobility Radeon HD 3870 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 GTX 770M or Mobility Radeon HD 3870 X2 here:

Main Specs

  GeForce GTX 770M Mobility Radeon HD 3870 X2
Power consumption (TDP) 75 Watt 110 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR3
Maximum RAM amount 3 GB 512 MB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 3870 X2 has 46% more power consumption, than GeForce GTX 770M.
  • GeForce GTX 770M is connected by MXM-B (3.0), and Mobility Radeon HD 3870 X2 uses PCIe 2.0 x16 interface.
  • Mobility Radeon HD 3870 X2 has 509 GB more memory, than GeForce GTX 770M.
  • Both cards are used in Laptops.
  • GeForce GTX 770M is build with Kepler architecture, and Mobility Radeon HD 3870 X2 - with RV6xx.
  • Core clock speed of GeForce GTX 770M is 151 MHz higher, than Mobility Radeon HD 3870 X2.
  • GeForce GTX 770M is manufactured by 28 nm process technology, and Mobility Radeon HD 3870 X2 - by 55 nm process technology.
  • Memory clock speed of GeForce GTX 770M is 1150 MHz higher, than Mobility Radeon HD 3870 X2.

Game benchmarks

high / 1080p 14−16 6−7
ultra / 1080p 8−9 4−5
QHD / 1440p 3−4 0−1
low / 720p 30−33 16−18
medium / 1080p 16−18 8−9
The average gaming FPS of GeForce GTX 770M in Assassin's Creed Odyssey is 100% more, than Mobility Radeon HD 3870 X2.

Full Specs

  GeForce GTX 770M Mobility Radeon HD 3870 X2
Architecture Kepler RV6xx
Code name N14E-GS M88-XT CF
Type Laptop Laptop
Release date 30 May 2013 1 September 2008
Pipelines 960 640
Core clock speed 811 MHz 660 MHz
Boost Clock 797 MHz
Transistor count 2,540 million 666 million
Manufacturing process technology 28 nm 55 nm
Texture fill rate 63.76 10.56
Floating-point performance 1,530 gflops 2x 422.4 gflops
Memory bus width 192 Bit 256 Bit
Memory clock speed 2000 MHz 850 MHz
Memory bandwidth 96.0 GB/s 54.4 GB/s
Shared memory - -
DirectX 12 API 10.1 (10_1)
Shader Model 5.1 4.1
OpenGL 4.5 3.3
OpenCL 1.1 N/A
Vulkan 1.1.126 N/A
CUDA +
CUDA cores 960
Bus support PCI Express 3.0, PCI Express 2.0
SLI options +
HDMI +
Bitcoin / BTC (SHA256) 55 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 +
Blu-Ray 3D Support +
3D Vision / 3DTV Play +
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