Maxwell GPU Surface Book 940M GDDR5 vs Radeon Sky 500

Find out if it is worth upgrading your current GPU setup by comparing Maxwell GPU Surface Book 940M GDDR5 and Radeon Sky 500. 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 Maxwell GPU Surface Book 940M GDDR5 and Radeon Sky 500. 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.

Maxwell GPU Surface Book 940M GDDR5 is a Laptop Graphics Card

Note: Maxwell GPU Surface Book 940M GDDR5 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 Maxwell GPU Surface Book 940M GDDR5 here:

Main Specs

  Maxwell GPU Surface Book 940M GDDR5 Radeon Sky 500
Power consumption (TDP) 150 Watt
Interface PCIe 3.0 x16
Supplementary power connectors 1x 6-pin
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors 1x DisplayPort
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  • Radeon Sky 500 has 3 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
  • Maxwell GPU Surface Book 940M GDDR5 is used in Laptops, and Radeon Sky 500 - in Desktops.
  • Maxwell GPU Surface Book 940M GDDR5 is build with Maxwell architecture, and Radeon Sky 500 - with GCN 1.0.
  • Core clock speed of Maxwell GPU Surface Book 940M GDDR5 is 4 MHz higher, than Radeon Sky 500.
  • Maxwell GPU Surface Book 940M GDDR5 and Radeon Sky 500 are manufactured by 28 nm process technology.
  • Memory clock speed of Maxwell GPU Surface Book 940M GDDR5 is 212 MHz higher, than Radeon Sky 500.

Game benchmarks

high / 1080p 9−10 35−40
ultra / 1080p 5−6 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 21−24 60−65
medium / 1080p 12−14 40−45
The average gaming FPS of Radeon Sky 500 in Assassin's Creed Odyssey is 241% more, than Maxwell GPU Surface Book 940M GDDR5.

Full Specs

  Maxwell GPU Surface Book 940M GDDR5 Radeon Sky 500
Architecture Maxwell GCN 1.0
Code name Surface Book Pitcairn
Type Laptop Desktop
Release date 1 October 2015 27 March 2013
Pipelines 384 1280
Core clock speed 954 MHz 950 MHz
Boost Clock 993 MHz
Transistor count 2,800 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 76.00
Floating-point performance 2,432 gflops
Length 242 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 5012 MHz 4800 MHz
Memory bandwidth 154 GB/s
Shared memory -
DirectX DirectX 12 (FL 11_0), Shader 5.0 12 (11_1)
Shader Model 5.1
OpenGL 4.6
OpenCL 1.2
Vulkan 1.2.131
CUDA +
Bus support PCIe 3.0
Optimus +
Form factor full height / full length
DisplayPort count 1
Dual-link DVI support +
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