Radeon HD 7870M vs Radeon RX 550X

Find out if it is worth upgrading your current GPU setup by comparing Radeon HD 7870M and Radeon RX 550X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Radeon HD 7870M and Radeon RX 550X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon HD 7870M is a Laptop Graphics Card

Note: Radeon HD 7870M 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 7870M here:

Main Specs

  Radeon HD 7870M Radeon RX 550X
Power consumption (TDP) 45 Watt 50 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 550X has 11% more power consumption, than Radeon HD 7870M.
  • Radeon HD 7870M is connected by PCIe 3.0 x16, and Radeon RX 550X uses PCIe 3.0 x8 interface.
  • Radeon RX 550X has 2 GB more memory, than Radeon HD 7870M.
  • Radeon HD 7870M is used in Laptops, and Radeon RX 550X - in Desktops.
  • Radeon HD 7870M is build with GCN architecture, and Radeon RX 550X - with GCN 4.0.
  • Core clock speed of Radeon RX 550X is 300 MHz higher, than Radeon HD 7870M.
  • Radeon HD 7870M is manufactured by 28 nm process technology, and Radeon RX 550X - by 14 nm process technology.
  • Memory clock speed of Radeon RX 550X is 2000 MHz higher, than Radeon HD 7870M.

Game benchmarks

high / 1080p 6−7 10−11
ultra / 1080p 4−5 6−7
QHD / 1440p 0−1 0−1
low / 720p 16−18 21−24
medium / 1080p 8−9 12−14
The average gaming FPS of Radeon RX 550X in Assassin's Creed Odyssey is 44% more, than Radeon HD 7870M.

Full Specs

  Radeon HD 7870M Radeon RX 550X
Architecture GCN GCN 4.0
Code name Heathrow XT Lexa
Type Laptop Desktop
Release date 24 April 2012 16 December 2018
Pipelines 640 512
Core clock speed 800 MHz 1100 MHz
Boost Clock 1183 MHz
Transistor count 1,500 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 32.00 37.86
Floating-point performance 1,024 gflops 1,211 gflops
Length 145 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 4000 MHz 6000 MHz
Memory bandwidth 64 GB/s 96 GB/s
Shared memory -
DirectX 12 (11_1) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
Laptop size large
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