Mobility Radeon HD 4870 X2 vs Radeon RX 540

When choosing between Mobility Radeon HD 4870 X2 and Radeon RX 540, 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 Mobility Radeon HD 4870 X2 and Radeon RX 540.

Mobility Radeon HD 4870 X2 and Radeon RX 540 are Laptop Graphics Cards

Note: Mobility Radeon HD 4870 X2 and Radeon RX 540 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 Mobility Radeon HD 4870 X2 or Radeon RX 540 here:

Main Specs

  Mobility Radeon HD 4870 X2 Radeon RX 540
Power consumption (TDP) 65 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR3, GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs
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  • Mobility Radeon HD 4870 X2 is connected by PCIe 2.0 x16, and Radeon RX 540 uses PCIe 3.0 x16 interface.
  • Radeon RX 540 has 2 GB more memory, than Mobility Radeon HD 4870 X2.
  • Both cards are used in Laptops.
  • Mobility Radeon HD 4870 X2 is build with Terascale 1 architecture, and Radeon RX 540 - with Polaris.
  • Mobility Radeon HD 4870 X2 is manufactured by 55 nm process technology, and Radeon RX 540 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 540 is 5112 MHz higher, than Mobility Radeon HD 4870 X2.

Game benchmarks

high / 1080p 9−10 14−16
ultra / 1080p 5−6 8−9
QHD / 1440p 0−1 3−4
low / 720p 21−24 30−33
medium / 1080p 12−14 18−20
The average gaming FPS of Radeon RX 540 in Assassin's Creed Odyssey is 50% more, than Mobility Radeon HD 4870 X2.

Full Specs

  Mobility Radeon HD 4870 X2 Radeon RX 540
Architecture Terascale 1 Polaris
Code name M98-XT Polaris 12
Type Laptop Laptop
Release date 9 January 2009 21 March 2017
Pipelines 1600 512
Core clock speed 550 MHz
Boost Clock 1219 MHz
Transistor count 956 million 1,500 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 22.00 39.01
Floating-point performance 2x 880.0 gflops 1,248 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 888 MHz 6000 MHz
Memory bandwidth 89.6 GB/s 96 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12.0
Shader Model 4.1 5.0
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A
FreeSync +
Laptop size large large
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