GeForce 940MX vs Iris Plus Graphics 645
In this comparison between GeForce 940MX and Iris Plus Graphics 645 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 940MX will be the best choice, for others Iris Plus Graphics 645 will be their preference. Study the comparison tables below and make your choice.
GeForce 940MX and Iris Plus Graphics 645 are Laptop Graphics Cards
Note: GeForce 940MX 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 940MX or Iris Plus Graphics 645 here:
Main Specs
GeForce 940MX
Iris Plus Graphics 645
Power consumption (TDP)
23 Watt
15 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x1
Supplementary power connectors
None
Memory type
DDR3, GDDR5
DDR3/DDR4
Maximum RAM amount
4 GB
Display Connectors
No outputs
No outputs
Check Price
Check Price
GeForce 940MX has 53% more power consumption, than Iris Plus Graphics 645.
GeForce 940MX 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 940MX is build with Maxwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
Core clock speed of GeForce 940MX is 822 MHz higher, than Iris Plus Graphics 645.
GeForce 940MX 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
7−8
4−5
ultra / 1080p
4−5
2−3
QHD / 1440p
0−1
0−1
low / 720p
16−18
12−14
medium / 1080p
8−9
5−6
The average gaming FPS of GeForce 940MX in Assassin's Creed Odyssey is 50% more, than Iris Plus Graphics 645.
high / 1080p
12−14
−
ultra / 1080p
10−11
7−8
QHD / 1440p
0−1
0−1
low / 720p
24−27
16−18
medium / 1080p
12−14
8−9
The average gaming FPS of GeForce 940MX in Battlefield 5 is 45% more, than Iris Plus Graphics 645.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce 940MX and Iris Plus Graphics 645 have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
100−110
medium / 768p
110−120
80−85
ultra / 1080p
55−60
35−40
QHD / 1440p
30−33
24−27
4K / 2160p
27−30
−
high / 768p
80−85
60−65
The average gaming FPS of GeForce 940MX in Counter-Strike: Global Offensive is 38% more, than Iris Plus Graphics 645.
low / 768p
55−60
55−60
ultra / 1080p
20−22
12−14
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce 940MX in Cyberpunk 2077 is 7% more, than Iris Plus Graphics 645.
low / 768p
80−85
65−70
medium / 768p
60−65
45−50
ultra / 1080p
35−40
21−24
The average gaming FPS of GeForce 940MX in Dota 2 is 33% more, than Iris Plus Graphics 645.
high / 1080p
8−9
5−6
ultra / 1080p
8−9
5−6
4K / 2160p
3−4
3−4
low / 720p
18−20
12−14
medium / 1080p
9−10
5−6
The average gaming FPS of GeForce 940MX in Far Cry 5 is 50% more, than Iris Plus Graphics 645.
high / 1080p
14−16
12−14
ultra / 1080p
10−11
8−9
low / 720p
60−65
45−50
medium / 1080p
24−27
12−14
The average gaming FPS of GeForce 940MX in Fortnite is 40% more, than Iris Plus Graphics 645.
high / 1080p
12−14
8−9
ultra / 1080p
10−12
−
QHD / 1440p
1−2
0−1
low / 720p
27−30
16−18
medium / 1080p
14−16
9−10
The average gaming FPS of GeForce 940MX in Forza Horizon 4 is 63% more, than Iris Plus Graphics 645.
low / 768p
50−55
40−45
medium / 768p
45−50
35−40
high / 1080p
12−14
7−8
ultra / 1080p
6−7
5−6
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce 940MX in Grand Theft Auto V is 26% more, than Iris Plus Graphics 645.
high / 1080p
5−6
3−4
ultra / 1080p
3−4
2−3
4K / 2160p
0−1
0−1
low / 720p
12−14
7−8
medium / 1080p
6−7
4−5
The average gaming FPS of GeForce 940MX in Metro Exodus is 75% more, than Iris Plus Graphics 645.
low / 768p
95−100
85−90
high / 1080p
90−95
80−85
ultra / 1080p
80−85
70−75
medium / 1080p
90−95
−
The average gaming FPS of GeForce 940MX in Minecraft is 12% more, than Iris Plus Graphics 645.
high / 1080p
16−18
16−18
ultra / 1080p
14−16
14−16
low / 720p
30−35
24−27
medium / 1080p
18−20
16−18
The average gaming FPS of GeForce 940MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 11% more, than Iris Plus Graphics 645.
ultra / 1080p
7−8
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
7−8
medium / 1080p
10−12
−
The average gaming FPS of GeForce 940MX in Red Dead Redemption 2 is 42% more, than Iris Plus Graphics 645.
low / 768p
24−27
16−18
medium / 768p
16−18
12−14
high / 1080p
9−10
6−7
ultra / 1080p
6−7
5−6
4K / 2160p
6−7
−
The average gaming FPS of GeForce 940MX in The Witcher 3: Wild Hunt is 40% more, than Iris Plus Graphics 645.
low / 768p
85−90
80−85
medium / 768p
45−50
35−40
ultra / 1080p
20−22
14−16
high / 768p
35−40
30−33
The average gaming FPS of GeForce 940MX in World of Tanks is 17% more, than Iris Plus Graphics 645.
Full Specs
GeForce 940MX
Iris Plus Graphics 645
Architecture
Maxwell
Gen. 9.5 Coffee Lake
Code name
N16S-GTR-B/S
Kaby Lake GT3e
Type
Laptop
Laptop
Release date
10 March 2016
10 July 2019
Pipelines
384
48
Core clock speed
1122 MHz
300 MHz
Boost Clock
1242 MHz
1150 MHz
Transistor count
1,870 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
23.83
50.40
Floating-point performance
762.6 gflops
Memory bus width
64 Bit
Memory clock speed
4000 MHz
Memory bandwidth
40.1 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
1.1.103
CUDA
+
Bus support
PCI Express 3.0
Bitcoin / BTC (SHA256)
102 Mh/s
Laptop size
medium sized
Optimus
+
Quick Sync
+
GPU Boost
2.0
GameWorks
+
Check Price
Check Price
