GeForce 940M vs Iris Plus Graphics 645
When choosing between GeForce 940M and Iris Plus Graphics 645, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 940M and Iris Plus Graphics 645.
GeForce 940M and Iris Plus Graphics 645 are Laptop Graphics Cards
Note: GeForce 940M and Iris Plus Graphics 645 are only used in laptop graphics. They have 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 GeForce 940M or Iris Plus Graphics 645 here:
Main Specs
GeForce 940M
Iris Plus Graphics 645
Power consumption (TDP)
75 Watt
15 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x1
Memory type
DDR3
DDR3/DDR4
Maximum RAM amount
4 GB
Display Connectors
No outputs
No outputs
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GeForce 940M has 400% more power consumption, than Iris Plus Graphics 645.
GeForce 940M is connected by PCIe 3.0 x8, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
Both cards are used in Laptops.
GeForce 940M is build with Maxwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
Core clock speed of GeForce 940M is 772 MHz higher, than Iris Plus Graphics 645.
GeForce 940M is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.
Game benchmarks
Assassin's Creed Odyssey
Battlefield 5
Call of Duty: Warzone
Counter-Strike: Global Offensive
Cyberpunk 2077
Dota 2
Far Cry 5
Fortnite
Forza Horizon 4
Grand Theft Auto V
Metro Exodus
Minecraft
PLAYERUNKNOWN'S BATTLEGROUNDS
Red Dead Redemption 2
The Witcher 3: Wild Hunt
World of Tanks
high / 1080p
2−3
4−5
ultra / 1080p
1−2
2−3
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
4−5
5−6
The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 20% more, than GeForce 940M.
high / 1080p
6−7
−
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
0−1
low / 720p
16−18
16−18
medium / 1080p
6−7
8−9
The average gaming FPS of Iris Plus Graphics 645 in Battlefield 5 is 22% more, than GeForce 940M.
low / 768p
50−55
45−50
high / 1080p
40−45
45−50
QHD / 1440p
0−1
0−1
GeForce 940M and Iris Plus Graphics 645 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
100−110
medium / 768p
90−95
80−85
ultra / 1080p
40−45
35−40
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
−
high / 768p
65−70
60−65
The average gaming FPS of GeForce 940M in Counter-Strike: Global Offensive is 12% more, than Iris Plus Graphics 645.
low / 768p
70−75
55−60
ultra / 1080p
18−20
12−14
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce 940M in Cyberpunk 2077 is 17% more, than Iris Plus Graphics 645.
low / 768p
70−75
65−70
medium / 768p
50−55
45−50
ultra / 1080p
24−27
21−24
The average gaming FPS of GeForce 940M in Dota 2 is 11% more, than Iris Plus Graphics 645.
high / 1080p
3−4
5−6
ultra / 1080p
3−4
5−6
4K / 2160p
2−3
3−4
low / 720p
12−14
12−14
medium / 1080p
4−5
5−6
The average gaming FPS of Iris Plus Graphics 645 in Far Cry 5 is 20% more, than GeForce 940M.
high / 1080p
10−11
12−14
ultra / 1080p
5−6
8−9
QHD / 1440p
2−3
−
low / 720p
50−55
45−50
medium / 1080p
12−14
12−14
GeForce 940M and Iris Plus Graphics 645 have the same average FPS in Fortnite.
high / 1080p
7−8
8−9
ultra / 1080p
6−7
−
QHD / 1440p
2−3
0−1
low / 720p
20−22
16−18
medium / 1080p
9−10
9−10
The average gaming FPS of GeForce 940M in Forza Horizon 4 is 9% more, than Iris Plus Graphics 645.
low / 768p
45−50
40−45
medium / 768p
35−40
35−40
high / 1080p
6−7
7−8
ultra / 1080p
3−4
5−6
QHD / 1440p
0−1
0−1
GeForce 940M and Iris Plus Graphics 645 have the same average FPS in Grand Theft Auto V.
high / 1080p
1−2
3−4
ultra / 1080p
0−1
2−3
4K / 2160p
0−1
0−1
low / 720p
6−7
7−8
medium / 1080p
3−4
4−5
The average gaming FPS of Iris Plus Graphics 645 in Metro Exodus is 66% more, than GeForce 940M.
low / 768p
90−95
85−90
high / 1080p
85−90
80−85
ultra / 1080p
75−80
70−75
medium / 1080p
90−95
−
The average gaming FPS of GeForce 940M in Minecraft is 6% more, than Iris Plus Graphics 645.
high / 1080p
14−16
16−18
ultra / 1080p
12−14
14−16
low / 720p
24−27
24−27
medium / 1080p
16−18
16−18
The average gaming FPS of Iris Plus Graphics 645 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce 940M.
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
0−1
low / 720p
5−6
7−8
The average gaming FPS of Iris Plus Graphics 645 in Red Dead Redemption 2 is 40% more, than GeForce 940M.
low / 768p
14−16
16−18
medium / 768p
10−11
12−14
high / 1080p
5−6
6−7
ultra / 1080p
4−5
5−6
4K / 2160p
1−2
−
The average gaming FPS of Iris Plus Graphics 645 in The Witcher 3: Wild Hunt is 25% more, than GeForce 940M.
low / 768p
75−80
80−85
medium / 768p
40−45
35−40
ultra / 1080p
14−16
14−16
high / 768p
30−35
30−33
GeForce 940M and Iris Plus Graphics 645 have the same average FPS in World of Tanks.
Full Specs
GeForce 940M
Iris Plus Graphics 645
Architecture
Maxwell
Gen. 9.5 Coffee Lake
Code name
N16S-GT-S/B
Kaby Lake GT3e
Type
Laptop
Laptop
Release date
12 March 2015
10 July 2019
Pipelines
384
48
Core clock speed
1072 MHz
300 MHz
Boost Clock
1176 MHz
1150 MHz
Transistor count
1,870 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
28.22
50.40
Floating-point performance
903.2 gflops
Memory bus width
64 Bit
Memory clock speed
2000 MHz
Memory bandwidth
14.4 GB/s
Shared memory
-
+
DirectX
12 (11_0)
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.5
4.6
OpenCL
1.2
2.1
Vulkan
1.1.126
1.1.103
CUDA
+
Bus support
PCI Express 3.0
Bitcoin / BTC (SHA256)
101 Mh/s
Laptop size
medium sized
Optimus
+
Quick Sync
+
GPU Boost
2.0
GameWorks
+
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