GeForce GTX 675M vs Mobility Radeon HD 4870 X2

When choosing between GeForce GTX 675M 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 GTX 675M and Mobility Radeon HD 4870 X2.

GeForce GTX 675M and Mobility Radeon HD 4870 X2 are Laptop Graphics Cards

Note: GeForce GTX 675M 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 GTX 675M or Mobility Radeon HD 4870 X2 here:

Main Specs

  GeForce GTX 675M Mobility Radeon HD 4870 X2
Power consumption (TDP) 100 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Memory type GDDR5 GDDR3, GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce GTX 675M is connected by MXM-B (3.0), and Mobility Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
  • GeForce GTX 675M and Mobility Radeon HD 4870 X2 have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GTX 675M is build with Fermi architecture, and Mobility Radeon HD 4870 X2 - with Terascale 1.
  • Core clock speed of GeForce GTX 675M is 70 MHz higher, than Mobility Radeon HD 4870 X2.
  • GeForce GTX 675M is manufactured by 40 nm process technology, and Mobility Radeon HD 4870 X2 - by 55 nm process technology.
  • Memory clock speed of GeForce GTX 675M is 612 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 10−11 9−10
ultra / 1080p 6−7 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 21−24
medium / 1080p 12−14 12−14
The average gaming FPS of GeForce GTX 675M in Assassin's Creed Odyssey is 8% more, than Mobility Radeon HD 4870 X2.

Full Specs

  GeForce GTX 675M Mobility Radeon HD 4870 X2
Architecture Fermi Terascale 1
Code name N13E-GS1 M98-XT
Type Laptop Laptop
Release date 22 March 2012 9 January 2009
Pipelines 384 1600
Core clock speed 620 MHz 550 MHz
Transistor count 1,950 million 956 million
Manufacturing process technology 40 nm 55 nm
Texture fill rate 39.7 billion/sec 22.00
Floating-point performance 952.3 gflops 2x 880.0 gflops
Memory bus width 256bit 256 Bit
Memory clock speed 1500 MHz 888 MHz
Memory bandwidth 96.0 GB/s 89.6 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 1.1
Vulkan N/A N/A
CUDA +
CUDA cores 384
Bus support PCI Express 2.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 59 Mh/s
Laptop size large large
Optimus +
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