Iris Plus Graphics 640 and GeForce 940MX - video card comparison
Passmark - benchmark score Iris Plus Graphics 640 vs GeForce 940MX
Iris Plus Graphics 640
1534
GeForce 940MX
1561
Iris Plus Graphics 640
GeForce 940MX
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
Maxwell (2014−2018)
GPU code name
Kaby Lake GT3e
N16S-GTR-B/S
Market segment
Laptop
Laptop
Release date
January 2017
March 2016
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x1
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
1242 MHz
Core clock speed
300 MHz
1122 MHz
Floating-point performance
-
762.6 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
189 million
1,870 million
Pipelines / CUDA cores
48
384
Power consumption (TDP)
15 Watt
23 Watt
Texture fill rate
52.80
23.83
Memory type
DDR3L/LPDDR3/DDR4
DDR3, GDDR5
Maximum RAM amount
32 GB
4 GB
Memory bus width
64/128 Bit
64 Bit
Memory clock speed
System Shared
4000 MHz
Memory bandwidth
-
40.1 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_0)
CUDA
-
+
OpenCL
2.1
1.2
OpenGL
4.6
4.5
Shader Model
6.4
5.1
Vulkan
1.1.103
1.1
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+
Quick Sync
+
-