Iris Graphics 540 vs Iris Plus Graphics 645
When choosing between Iris Graphics 540 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 Iris Graphics 540 and Iris Plus Graphics 645.
Iris Graphics 540 and Iris Plus Graphics 645 are Laptop Graphics Cards
Note: Iris Graphics 540 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 Iris Graphics 540 or Iris Plus Graphics 645 here:
Main Specs
Iris Graphics 540
Iris Plus Graphics 645
Power consumption (TDP)
15 Watt
15 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x1
Memory type
eDRAM
DDR3/DDR4
Maximum RAM amount
64 MB
Display Connectors
No outputs
No outputs
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Both graphics cards have the same power consumption of 15 Watt.
Both video cards are using PCIe 3.0 x1 interface connection to a motherboard.
Both cards are used in Laptops.
Iris Graphics 540 is build with Gen. 9 Skylake architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
Both graphics cards have the same core clock speed.
Iris Graphics 540 and Iris Plus Graphics 645 are manufactured 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
8−9
4−5
ultra / 1080p
5−6
2−3
QHD / 1440p
0−1
0−1
low / 720p
20−22
12−14
medium / 1080p
10−12
5−6
The average gaming FPS of Iris Graphics 540 in Assassin's Creed Odyssey is 83% more, than Iris Plus Graphics 645.
high / 1080p
14−16
−
ultra / 1080p
12−14
7−8
QHD / 1440p
0−1
0−1
low / 720p
30−35
16−18
medium / 1080p
16−18
8−9
The average gaming FPS of Iris Graphics 540 in Battlefield 5 is 81% more, than Iris Plus Graphics 645.
low / 768p
45−50
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
Iris Graphics 540 and Iris Plus Graphics 645 have the same average FPS in Call of Duty: Warzone.
low / 768p
150−160
100−110
medium / 768p
130−140
80−85
ultra / 1080p
65−70
35−40
QHD / 1440p
35−40
24−27
4K / 2160p
27−30
−
high / 768p
95−100
60−65
The average gaming FPS of Iris Graphics 540 in Counter-Strike: Global Offensive is 58% more, than Iris Plus Graphics 645.
low / 768p
55−60
55−60
ultra / 1080p
24−27
12−14
medium / 1080p
45−50
45−50
The average gaming FPS of Iris Graphics 540 in Cyberpunk 2077 is 10% more, than Iris Plus Graphics 645.
low / 768p
85−90
65−70
medium / 768p
65−70
45−50
ultra / 1080p
40−45
21−24
The average gaming FPS of Iris Graphics 540 in Dota 2 is 44% more, than Iris Plus Graphics 645.
high / 1080p
10−11
5−6
ultra / 1080p
9−10
5−6
4K / 2160p
4−5
3−4
low / 720p
24−27
12−14
medium / 1080p
10−12
5−6
The average gaming FPS of Iris Graphics 540 in Far Cry 5 is 100% more, than Iris Plus Graphics 645.
high / 1080p
16−18
12−14
ultra / 1080p
12−14
8−9
low / 720p
70−75
45−50
medium / 1080p
30−33
12−14
The average gaming FPS of Iris Graphics 540 in Fortnite is 65% more, than Iris Plus Graphics 645.
high / 1080p
14−16
8−9
ultra / 1080p
12−14
−
QHD / 1440p
3−4
0−1
low / 720p
30−35
16−18
medium / 1080p
16−18
9−10
The average gaming FPS of Iris Graphics 540 in Forza Horizon 4 is 90% more, than Iris Plus Graphics 645.
low / 768p
60−65
40−45
medium / 768p
50−55
35−40
high / 1080p
16−18
7−8
ultra / 1080p
8−9
5−6
QHD / 1440p
0−1
0−1
The average gaming FPS of Iris Graphics 540 in Grand Theft Auto V is 52% more, than Iris Plus Graphics 645.
high / 1080p
6−7
3−4
ultra / 1080p
4−5
2−3
4K / 2160p
1−2
0−1
low / 720p
16−18
7−8
medium / 1080p
8−9
4−5
The average gaming FPS of Iris Graphics 540 in Metro Exodus is 125% more, than Iris Plus Graphics 645.
low / 768p
95−100
85−90
high / 1080p
95−100
80−85
ultra / 1080p
85−90
70−75
medium / 1080p
95−100
−
The average gaming FPS of Iris Graphics 540 in Minecraft is 17% more, than Iris Plus Graphics 645.
high / 1080p
18−20
16−18
ultra / 1080p
14−16
14−16
low / 720p
35−40
24−27
medium / 1080p
18−20
16−18
The average gaming FPS of Iris Graphics 540 in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than Iris Plus Graphics 645.
high / 1080p
12−14
−
ultra / 1080p
8−9
7−8
QHD / 1440p
0−1
0−1
low / 720p
16−18
7−8
medium / 1080p
12−14
−
The average gaming FPS of Iris Graphics 540 in Red Dead Redemption 2 is 71% more, than Iris Plus Graphics 645.
low / 768p
30−35
16−18
medium / 768p
21−24
12−14
high / 1080p
10−12
6−7
ultra / 1080p
7−8
5−6
4K / 2160p
6−7
−
The average gaming FPS of Iris Graphics 540 in The Witcher 3: Wild Hunt is 80% more, than Iris Plus Graphics 645.
low / 768p
90−95
80−85
medium / 768p
50−55
35−40
ultra / 1080p
24−27
14−16
high / 768p
40−45
30−33
The average gaming FPS of Iris Graphics 540 in World of Tanks is 29% more, than Iris Plus Graphics 645.
Full Specs
Iris Graphics 540
Iris Plus Graphics 645
Architecture
Gen. 9 Skylake
Gen. 9.5 Coffee Lake
Code name
Skylake GT3e
Kaby Lake GT3e
Type
Laptop
Laptop
Release date
1 September 2015
10 July 2019
Pipelines
48
48
Core clock speed
300 MHz
300 MHz
Boost Clock
1050 MHz
1150 MHz
Transistor count
189 million
Manufacturing process technology
14 nm
14 nm
Texture fill rate
50.40
50.40
Shared memory
+
+
DirectX
12 (12_1)
12 (12_1)
Shader Model
6.4
6.4
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.1.97
1.1.103
Quick Sync
+
+
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