Mobility Radeon HD 4850 vs Radeon 540X

In this comparison between Mobility Radeon HD 4850 and Radeon 540X you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Mobility Radeon HD 4850 will be the best choice, for others Radeon 540X will be their preference. Study the comparison tables below and make your choice.

Mobility Radeon HD 4850 and Radeon 540X are Laptop Graphics Cards

Note: Mobility Radeon HD 4850 and Radeon 540X 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 4850 or Radeon 540X here:

Main Specs

  Mobility Radeon HD 4850 Radeon 540X
Power consumption (TDP) 50 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Mobility Radeon HD 4850 is connected by PCIe 2.0 x16, and Radeon 540X uses PCIe 3.0 x8 interface.
  • Radeon 540X has 1 GB more memory, than Mobility Radeon HD 4850.
  • Both cards are used in Laptops.
  • Mobility Radeon HD 4850 is build with Terascale 1 architecture, and Radeon 540X - with GCN 4.0.
  • Mobility Radeon HD 4850 is manufactured by 55 nm process technology, and Radeon 540X - by 14 nm process technology.
  • Memory clock speed of Radeon 540X is 5150 MHz higher, than Mobility Radeon HD 4850.

Game benchmarks

high / 1080p 3−4 6−7
ultra / 1080p 1−2 3−4
QHD / 1440p 0−1 0−1
low / 720p 14−16 14−16
medium / 1080p 5−6 7−8
The average gaming FPS of Radeon 540X in Assassin's Creed Odyssey is 33% more, than Mobility Radeon HD 4850.

Full Specs

  Mobility Radeon HD 4850 Radeon 540X
Architecture Terascale 1 GCN 4.0
Code name M98 Lexa
Type Laptop Laptop
Release date 9 January 2009 12 August 2019
Pipelines 800 512
Core clock speed 500 MHz
Boost Clock 1219 MHz
Transistor count 956 million 2,200 million
Manufacturing process technology 55 nm 14 nm
Texture fill rate 20.00 33.47
Floating-point performance 800.0 gflops
Memory bus width 256 Bit 64 Bit
Memory clock speed 850 MHz 6000 MHz
Memory bandwidth 54.4 GB/s 112.0 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12 (12_0)
Shader Model 4.1 6.4
OpenGL 3.3 4.6
OpenCL 1.1 2.0
Vulkan N/A 1.2.131
Laptop size large
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