Maxwell GPU Surface Book (940M, GDDR5) and GeForce GT 540M - video card comparison
Maxwell GPU Surface Book (940M, GDDR5)
GeForce GT 540M
Architecture
Maxwell (2014−2018)
Fermi (2010−2014)
GPU code name
Surface Book
N12P-GS
Market segment
Laptop
Laptop
Release date
October 2015
January 2011
Interface
-
MXM-A (3.0)
Boost clock speed
993 MHz
-
Core clock speed
954 MHz
672 MHz
CUDA cores
-
96
Floating-point performance
-
258.05 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
-
585 million
Pipelines / CUDA cores
384
96
Power consumption (TDP)
-
35 Watt
Texture fill rate
-
10.8 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5012 MHz
900 MHz
Memory bandwidth
-
28.8 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
DirectX 12 (FL 11_0), Shader 5.0
12 API
CUDA
+
+
OpenCL
-
1.1
OpenGL
-
4.5
Shader Model
-
5.1
Vulkan
-
N/A
3D Blu-Ray
-
+
3D Gaming
-
+
Optimus
+
+