Radeon HD 7850M vs Radeon HD 7870

When comparing Radeon HD 7850M and Radeon HD 7870, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 7850M and Radeon HD 7870 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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 HD 7870
Power consumption (TDP) 40 Watt 175 Watt
Interface PCIe 3.0 x16
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs
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  • Radeon HD 7870 has 337% more power consumption, than Radeon HD 7850M.
  • Radeon HD 7850M and Radeon HD 7870 have maximum RAM of 2 GB.
  • Radeon HD 7850M is used in Laptops, and Radeon HD 7870 - in Desktops.
  • Radeon HD 7850M and Radeon HD 7870 are build with GCN architecture.
  • Core clock speed of Radeon HD 7870 is 325 MHz higher, than Radeon HD 7850M.
  • Radeon HD 7850M and Radeon HD 7870 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 7870 is 800 MHz higher, than Radeon HD 7850M.

Game benchmarks

high / 1080p 6−7 24−27
ultra / 1080p 3−4 14−16
QHD / 1440p 0−1 9−10
4K / 2160p 6−7
low / 720p 14−16 45−50
medium / 1080p 7−8 30−33
The average gaming FPS of Radeon HD 7870 in Assassin's Creed Odyssey is 262% more, than Radeon HD 7850M.

Full Specs

  Radeon HD 7850M Radeon HD 7870
Architecture GCN GCN
Code name Heathrow Pro Pitcairn XT
Type Laptop Desktop
Release date 24 April 2012 5 March 2012
Pipelines 640 1280
Core clock speed 675 MHz 1000 MHz
Transistor count 1,500 million 2800 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 27.00
Floating-point performance 864.0 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 4000 MHz 4800 MHz
Memory bandwidth 64 GB/s
Shared memory - -
DirectX 12 (11_1) DirectX 11.1, Shader 5.1
Shader Model 5.1
OpenGL 4.6
OpenCL 1.2
Vulkan 1.2.131
Monero / XMR (CryptoNight) 0.39 kh/s
Laptop size large
Eyefinity +
Decred / DCR (Decred) 0.63 Gh/s
Ethereum / ETH (DaggerHashimoto) 16.6 Mh/s
Zcash / ZEC (Equihash) 145 Sol/s
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