GeForce 940M vs Iris Plus Graphics 640
If you are going to buy a new graphics card and are choosing between GeForce 940M and Iris Plus Graphics 640, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce 940M stacks up against Iris Plus Graphics 640, check out specs charts below.
GeForce 940M and Iris Plus Graphics 640 are Laptop Graphics Cards
Note: GeForce 940M and Iris Plus Graphics 640 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 640 here:
Main Specs
GeForce 940M
Iris Plus Graphics 640
Power consumption (TDP)
75 Watt
15 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x1
Memory type
DDR3
DDR3L/LPDDR3/DDR4
Maximum RAM amount
4 GB
32 GB
Display Connectors
No outputs
No outputs
Check Price
Check Price
GeForce 940M has 400% more power consumption, than Iris Plus Graphics 640.
GeForce 940M is connected by PCIe 3.0 x8, and Iris Plus Graphics 640 uses PCIe 3.0 x1 interface.
Iris Plus Graphics 640 has 28 GB more memory, than GeForce 940M.
Both cards are used in Laptops.
GeForce 940M is build with Maxwell architecture, and Iris Plus Graphics 640 - with Gen. 9.5 Kaby Lake.
Core clock speed of GeForce 940M is 772 MHz higher, than Iris Plus Graphics 640.
GeForce 940M is manufactured by 28 nm process technology, and Iris Plus Graphics 640 - 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
6−7
ultra / 1080p
1−2
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
16−18
medium / 1080p
4−5
8−9
The average gaming FPS of Iris Plus Graphics 640 in Assassin's Creed Odyssey is 80% more, than GeForce 940M.
high / 1080p
6−7
12−14
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
0−1
low / 720p
16−18
24−27
medium / 1080p
6−7
12−14
The average gaming FPS of Iris Plus Graphics 640 in Battlefield 5 is 87% 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 640 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
130−140
medium / 768p
90−95
110−120
ultra / 1080p
40−45
50−55
QHD / 1440p
24−27
27−30
4K / 2160p
18−20
27−30
high / 768p
65−70
80−85
The average gaming FPS of Iris Plus Graphics 640 in Counter-Strike: Global Offensive is 17% more, than GeForce 940M.
low / 768p
70−75
55−60
ultra / 1080p
18−20
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce 940M in Cyberpunk 2077 is 12% more, than Iris Plus Graphics 640.
low / 768p
70−75
80−85
medium / 768p
50−55
55−60
ultra / 1080p
24−27
30−35
The average gaming FPS of Iris Plus Graphics 640 in Dota 2 is 14% more, than GeForce 940M.
high / 1080p
3−4
8−9
ultra / 1080p
3−4
7−8
4K / 2160p
2−3
3−4
low / 720p
12−14
18−20
medium / 1080p
4−5
8−9
The average gaming FPS of Iris Plus Graphics 640 in Far Cry 5 is 80% more, than GeForce 940M.
high / 1080p
10−11
14−16
ultra / 1080p
5−6
10−11
QHD / 1440p
2−3
−
low / 720p
50−55
60−65
medium / 1080p
12−14
21−24
The average gaming FPS of Iris Plus Graphics 640 in Fortnite is 35% more, than GeForce 940M.
high / 1080p
7−8
12−14
ultra / 1080p
6−7
10−12
QHD / 1440p
2−3
1−2
low / 720p
20−22
24−27
medium / 1080p
9−10
14−16
The average gaming FPS of Iris Plus Graphics 640 in Forza Horizon 4 is 44% more, than GeForce 940M.
low / 768p
45−50
50−55
medium / 768p
35−40
45−50
high / 1080p
6−7
12−14
ultra / 1080p
3−4
6−7
QHD / 1440p
0−1
0−1
The average gaming FPS of Iris Plus Graphics 640 in Grand Theft Auto V is 26% more, than GeForce 940M.
high / 1080p
1−2
4−5
ultra / 1080p
0−1
3−4
4K / 2160p
0−1
0−1
low / 720p
6−7
12−14
medium / 1080p
3−4
6−7
The average gaming FPS of Iris Plus Graphics 640 in Metro Exodus is 166% more, than GeForce 940M.
low / 768p
90−95
95−100
high / 1080p
85−90
90−95
ultra / 1080p
75−80
80−85
medium / 1080p
90−95
90−95
The average gaming FPS of Iris Plus Graphics 640 in Minecraft is 4% more, than GeForce 940M.
high / 1080p
14−16
16−18
ultra / 1080p
12−14
14−16
low / 720p
24−27
30−35
medium / 1080p
16−18
18−20
The average gaming FPS of Iris Plus Graphics 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 17% more, than GeForce 940M.
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
0−1
low / 720p
5−6
12−14
medium / 1080p
−
10−12
The average gaming FPS of Iris Plus Graphics 640 in Red Dead Redemption 2 is 100% more, than GeForce 940M.
low / 768p
14−16
24−27
medium / 768p
10−11
16−18
high / 1080p
5−6
9−10
ultra / 1080p
4−5
6−7
4K / 2160p
1−2
6−7
The average gaming FPS of Iris Plus Graphics 640 in The Witcher 3: Wild Hunt is 85% more, than GeForce 940M.
low / 768p
75−80
85−90
medium / 768p
40−45
45−50
ultra / 1080p
14−16
18−20
high / 768p
30−35
35−40
The average gaming FPS of Iris Plus Graphics 640 in World of Tanks is 14% more, than GeForce 940M.
Full Specs
GeForce 940M
Iris Plus Graphics 640
Architecture
Maxwell
Gen. 9.5 Kaby Lake
Code name
N16S-GT-S/B
Kaby Lake GT3e
Type
Laptop
Laptop
Release date
12 March 2015
3 January 2017
Pipelines
384
48
Core clock speed
1072 MHz
300 MHz
Boost Clock
1176 MHz
1050 MHz
Transistor count
1,870 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
28.22
52.80
Floating-point performance
903.2 gflops
Memory bus width
64 Bit
64/128 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
+
Check Price
Check Price
