Maxwell GPU Surface Book and Iris Plus Graphics 640 - video card comparison
Maxwell GPU Surface Book
Iris Plus Graphics 640
Architecture
Maxwell (2014−2018)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
Surface Book
Kaby Lake GT3e
Market segment
Laptop
Laptop
Release date
October 2015
January 2017
Interface
-
PCIe 3.0 x1
Boost clock speed
993 MHz
1050 MHz
Core clock speed
954 MHz
300 MHz
Manufacturing process technology
28 nm
14 nm
Number of transistors
-
189 million
Pipelines / CUDA cores
384
48
Power consumption (TDP)
-
15 Watt
Texture fill rate
-
52.80
Memory type
GDDR5
DDR3L/LPDDR3/DDR4
Maximum RAM amount
1 GB
32 GB
Memory bus width
64 Bit
64/128 Bit
Memory clock speed
5012 MHz
System Shared
Shared memory
-
+
Display Connectors
-
No outputs
DirectX
12 (FL 11_0)
12 (12_1)
CUDA
+
-
OpenCL
-
2.1
OpenGL
-
4.6
Shader Model
-
6.4
Vulkan
-
1.1.103
Optimus
+
-
Quick Sync
-
+