Mobility Radeon HD 4850 vs Radeon HD 7850M

In this comparison between Mobility Radeon HD 4850 and Radeon HD 7850M 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 HD 7850M will be their preference. Study the comparison tables below and make your choice.

Mobility Radeon HD 4850 and Radeon HD 7850M are Laptop Graphics Cards

Note: Mobility Radeon HD 4850 and Radeon HD 7850M 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 HD 7850M here:

Main Specs

  Mobility Radeon HD 4850 Radeon HD 7850M
Power consumption (TDP) 40 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Memory type GDDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs No outputs
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  • Mobility Radeon HD 4850 is connected by PCIe 2.0 x16, and Radeon HD 7850M uses PCIe 3.0 x16 interface.
  • Radeon HD 7850M 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 HD 7850M - with GCN.
  • Core clock speed of Radeon HD 7850M is 175 MHz higher, than Mobility Radeon HD 4850.
  • Mobility Radeon HD 4850 is manufactured by 55 nm process technology, and Radeon HD 7850M - by 28 nm process technology.
  • Memory clock speed of Radeon HD 7850M is 3150 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 HD 7850M in Assassin's Creed Odyssey is 33% more, than Mobility Radeon HD 4850.

Full Specs

  Mobility Radeon HD 4850 Radeon HD 7850M
Architecture Terascale 1 GCN
Code name M98 Heathrow Pro
Type Laptop Laptop
Release date 9 January 2009 24 April 2012
Pipelines 800 640
Core clock speed 500 MHz 675 MHz
Transistor count 956 million 1,500 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 20.00 27.00
Floating-point performance 800.0 gflops 864.0 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 850 MHz 4000 MHz
Memory bandwidth 54.4 GB/s 64 GB/s
Shared memory - -
DirectX 10.1 (10_1) 12 (11_1)
Shader Model 4.1 5.1
OpenGL 3.3 4.6
OpenCL 1.1 1.2
Vulkan N/A 1.2.131
Laptop size large large
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