Maxwell GPU Surface Book 940M GDDR5 vs Radeon R9 M270X

Find out if it is worth upgrading your current GPU setup by comparing Maxwell GPU Surface Book 940M GDDR5 and Radeon R9 M270X. 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 R9 M270X. 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 R9 M270X
Interface PCIe 3.0 x16
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors No outputs
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  • Radeon R9 M270X has 3 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
  • Maxwell GPU Surface Book 940M GDDR5 is used in Laptops, and Radeon R9 M270X - in Desktops.
  • Maxwell GPU Surface Book 940M GDDR5 is build with Maxwell architecture, and Radeon R9 M270X - with GCN 1.0.
  • Core clock speed of Maxwell GPU Surface Book 940M GDDR5 is 229 MHz higher, than Radeon R9 M270X.
  • Maxwell GPU Surface Book 940M GDDR5 and Radeon R9 M270X are manufactured by 28 nm process technology.
  • Memory clock speed of Maxwell GPU Surface Book 940M GDDR5 is 3887 MHz higher, than Radeon R9 M270X.

Game benchmarks

high / 1080p 9−10 6−7
ultra / 1080p 5−6 4−5
QHD / 1440p 0−1 0−1
low / 720p 21−24 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of Maxwell GPU Surface Book 940M GDDR5 in Assassin's Creed Odyssey is 33% more, than Radeon R9 M270X.

Full Specs

  Maxwell GPU Surface Book 940M GDDR5 Radeon R9 M270X
Architecture Maxwell GCN 1.0
Code name Surface Book Venus
Type Laptop Desktop
Release date 1 October 2015 21 March 2014
Pipelines 384 640
Core clock speed 954 MHz 725 MHz
Boost Clock 993 MHz 775 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 31.00
Floating-point performance 1,536 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 5012 MHz 1125 MHz
Memory bandwidth 72 GB/s
Shared memory -
DirectX DirectX 12 (FL 11_0), Shader 5.0
Shader Model 5.1
OpenGL 4.4
OpenCL Not Listed
CUDA +
FreeSync +
Bus support PCIe 3.0 x16
Optimus +
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 10
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