Radeon 540X vs Radeon HD 7770M

Find out if it is worth upgrading your current GPU setup by comparing Radeon 540X and Radeon HD 7770M. 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 540X and Radeon HD 7770M. 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 540X and Radeon HD 7770M are Laptop Graphics Cards

Note: Radeon 540X and Radeon HD 7770M 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 Radeon 540X or Radeon HD 7770M here:

Main Specs

  Radeon 540X Radeon HD 7770M
Power consumption (TDP) 50 Watt 32 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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  • Radeon 540X has 56% more power consumption, than Radeon HD 7770M.
  • Radeon 540X is connected by PCIe 3.0 x8, and Radeon HD 7770M uses PCIe 2.0 x16 interface.
  • Radeon 540X has 1 GB more memory, than Radeon HD 7770M.
  • Both cards are used in Laptops.
  • Radeon 540X is build with GCN 4.0 architecture, and Radeon HD 7770M - with GCN.
  • Radeon 540X is manufactured by 14 nm process technology, and Radeon HD 7770M - by 28 nm process technology.
  • Memory clock speed of Radeon 540X is 2000 MHz higher, than Radeon HD 7770M.

Game benchmarks

high / 1080p 6−7 9−10
ultra / 1080p 3−4 5−6
QHD / 1440p 0−1 0−1
low / 720p 14−16 21−24
medium / 1080p 7−8 10−12
The average gaming FPS of Radeon HD 7770M in Assassin's Creed Odyssey is 50% more, than Radeon 540X.

Full Specs

  Radeon 540X Radeon HD 7770M
Architecture GCN 4.0 GCN
Code name Lexa Chelsea XT
Type Laptop Laptop
Release date 12 August 2019 24 April 2012
Pipelines 512 512
Core clock speed 675 MHz
Boost Clock 1219 MHz
Transistor count 2,200 million 1,500 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 33.47 21.60
Floating-point performance 691.2 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 6000 MHz 4000 MHz
Memory bandwidth 112.0 GB/s 64 GB/s
Shared memory - -
DirectX 12 (12_0) 12 (11_1)
Shader Model 6.4 5.1
OpenGL 4.6 4.6
OpenCL 2.0 1.2
Vulkan 1.2.131 1.2.131
Laptop size medium sized
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