Radeon HD 7850M vs Radeon R9 M270X

When choosing between Radeon HD 7850M and Radeon R9 M270X, 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 Radeon HD 7850M and Radeon R9 M270X.

Radeon HD 7850M is a Laptop Graphics Card

Note: Radeon HD 7850M is only used in laptop graphics. It has 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 Radeon HD 7850M here:

Main Specs

  Radeon HD 7850M Radeon R9 M270X
Power consumption (TDP) 40 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs No outputs
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  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • Radeon R9 M270X has 2 GB more memory, than Radeon HD 7850M.
  • Radeon HD 7850M is used in Laptops, and Radeon R9 M270X - in Desktops.
  • Radeon HD 7850M is build with GCN architecture, and Radeon R9 M270X - with GCN 1.0.
  • Core clock speed of Radeon R9 M270X is 50 MHz higher, than Radeon HD 7850M.
  • Radeon HD 7850M and Radeon R9 M270X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7850M is 2875 MHz higher, than Radeon R9 M270X.

Game benchmarks

high / 1080p 6−7 6−7
ultra / 1080p 3−4 4−5
QHD / 1440p 0−1 0−1
low / 720p 14−16 16−18
medium / 1080p 7−8 8−9
The average gaming FPS of Radeon R9 M270X in Assassin's Creed Odyssey is 12% more, than Radeon HD 7850M.

Full Specs

  Radeon HD 7850M Radeon R9 M270X
Architecture GCN GCN 1.0
Code name Heathrow Pro Venus
Type Laptop Desktop
Release date 24 April 2012 21 March 2014
Pipelines 640 640
Core clock speed 675 MHz 725 MHz
Boost Clock 775 MHz
Transistor count 1,500 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 27.00 31.00
Floating-point performance 864.0 gflops 1,536 gflops
Memory bus width 128 Bit 128 Bit
Memory clock speed 4000 MHz 1125 MHz
Memory bandwidth 64 GB/s 72 GB/s
Shared memory -
DirectX 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
Vulkan 1.2.131
FreeSync +
Bus support PCIe 3.0 x16
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 10
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