Iris Plus Graphics 645 vs Radeon R9 M390X
When comparing Iris Plus Graphics 645 and Radeon R9 M390X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Iris Plus Graphics 645 and Radeon R9 M390X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Iris Plus Graphics 645 and Radeon R9 M390X are Laptop Graphics Cards
Note: Iris Plus Graphics 645 and Radeon R9 M390X 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 Iris Plus Graphics 645 or Radeon R9 M390X here:
Main Specs
Iris Plus Graphics 645
Radeon R9 M390X
Power consumption (TDP)
15 Watt
100 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3/DDR4
GDDR5
Maximum RAM amount
4 GB
Display Connectors
No outputs
No outputs
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Radeon R9 M390X has 566% more power consumption, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
Both cards are used in Laptops.
Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon R9 M390X - with GCN 3.
Core clock speed of Radeon R9 M390X is 423 MHz higher, than Iris Plus Graphics 645.
Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon R9 M390X - by 28 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
4−5
21−24
ultra / 1080p
2−3
12−14
QHD / 1440p
0−1
8−9
4K / 2160p
−
5−6
low / 720p
12−14
40−45
medium / 1080p
5−6
27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 333% more, than Iris Plus Graphics 645.
high / 1080p
−
35−40
ultra / 1080p
7−8
30−35
QHD / 1440p
0−1
14−16
4K / 2160p
−
9−10
low / 720p
16−18
70−75
medium / 1080p
8−9
40−45
The average gaming FPS of Radeon R9 M390X in Battlefield 5 is 345% more, than Iris Plus Graphics 645.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 M390X in Call of Duty: Warzone is 10% more, than Iris Plus Graphics 645.
low / 768p
100−110
230−240
medium / 768p
80−85
210−220
ultra / 1080p
35−40
120−130
QHD / 1440p
24−27
100−110
4K / 2160p
−
55−60
high / 768p
60−65
170−180
The average gaming FPS of Radeon R9 M390X in Counter-Strike: Global Offensive is 175% more, than Iris Plus Graphics 645.
low / 768p
55−60
60−65
ultra / 1080p
12−14
55−60
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon R9 M390X in Cyberpunk 2077 is 51% more, than Iris Plus Graphics 645.
low / 768p
65−70
120−130
medium / 768p
45−50
110−120
ultra / 1080p
21−24
85−90
The average gaming FPS of Radeon R9 M390X in Dota 2 is 142% more, than Iris Plus Graphics 645.
high / 1080p
5−6
27−30
ultra / 1080p
5−6
24−27
QHD / 1440p
−
20−22
4K / 2160p
3−4
9−10
low / 720p
12−14
55−60
medium / 1080p
5−6
30−33
The average gaming FPS of Radeon R9 M390X in Far Cry 5 is 400% more, than Iris Plus Graphics 645.
high / 1080p
12−14
35−40
ultra / 1080p
8−9
27−30
QHD / 1440p
−
16−18
low / 720p
45−50
130−140
medium / 1080p
12−14
75−80
The average gaming FPS of Radeon R9 M390X in Fortnite is 245% more, than Iris Plus Graphics 645.
high / 1080p
8−9
35−40
ultra / 1080p
−
27−30
QHD / 1440p
0−1
16−18
4K / 2160p
−
14−16
low / 720p
16−18
75−80
medium / 1080p
9−10
40−45
The average gaming FPS of Radeon R9 M390X in Forza Horizon 4 is 372% more, than Iris Plus Graphics 645.
low / 768p
40−45
110−120
medium / 768p
35−40
95−100
high / 1080p
7−8
45−50
ultra / 1080p
5−6
18−20
QHD / 1440p
0−1
9−10
The average gaming FPS of Radeon R9 M390X in Grand Theft Auto V is 200% more, than Iris Plus Graphics 645.
high / 1080p
3−4
14−16
ultra / 1080p
2−3
10−12
QHD / 1440p
−
10−12
4K / 2160p
0−1
3−4
low / 720p
7−8
40−45
medium / 1080p
4−5
20−22
The average gaming FPS of Radeon R9 M390X in Metro Exodus is 450% more, than Iris Plus Graphics 645.
low / 768p
85−90
120−130
high / 1080p
80−85
−
ultra / 1080p
70−75
−
medium / 1080p
−
110−120
The average gaming FPS of Radeon R9 M390X in Minecraft is 43% more, than Iris Plus Graphics 645.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
24−27
75−80
medium / 1080p
16−18
18−20
The average gaming FPS of Radeon R9 M390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than Iris Plus Graphics 645.
high / 1080p
−
16−18
ultra / 1080p
7−8
10−12
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
7−8
40−45
medium / 1080p
−
21−24
The average gaming FPS of Radeon R9 M390X in Red Dead Redemption 2 is 271% more, than Iris Plus Graphics 645.
low / 768p
16−18
80−85
medium / 768p
12−14
50−55
high / 1080p
6−7
27−30
ultra / 1080p
5−6
16−18
4K / 2160p
−
9−10
The average gaming FPS of Radeon R9 M390X in The Witcher 3: Wild Hunt is 350% more, than Iris Plus Graphics 645.
low / 768p
80−85
90−95
medium / 768p
35−40
60−65
ultra / 1080p
14−16
40−45
high / 768p
30−33
55−60
The average gaming FPS of Radeon R9 M390X in World of Tanks is 53% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 645
Radeon R9 M390X
Architecture
Gen. 9.5 Coffee Lake
GCN 3
Code name
Kaby Lake GT3e
Amethyst (XT) / Tonga
Type
Laptop
Laptop
Release date
10 July 2019
9 June 2015
Pipelines
48
2048
Core clock speed
300 MHz
723 MHz
Boost Clock
1150 MHz
Transistor count
5,000 million
Manufacturing process technology
14 nm
28 nm
Texture fill rate
50.40
92.54
Floating-point performance
2,961 gflops
Memory bus width
256 Bit
Memory bandwidth
160.0 GB/s
Shared memory
+
-
DirectX
12 (12_1)
Shader Model
6.4
6.3
OpenGL
4.6
4.4
OpenCL
2.1
Not Listed
Vulkan
1.1.103
+
FreeSync
+
Bus support
PCIe 3.0
Laptop size
large
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
Quick Sync
+
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