Iris Plus Graphics 645 vs UHD Graphics 620
In this comparison between Iris Plus Graphics 645 and UHD Graphics 620 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 Iris Plus Graphics 645 will be the best choice, for others UHD Graphics 620 will be their preference. Study the comparison tables below and make your choice.
Iris Plus Graphics 645 and UHD Graphics 620 are Laptop Graphics Cards
Note: Iris Plus Graphics 645 and UHD Graphics 620 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 UHD Graphics 620 here:
Main Specs
Iris Plus Graphics 645
UHD Graphics 620
Power consumption (TDP)
15 Watt
15 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x1
Memory type
DDR3/DDR4
LPDDR3/DDR4
Maximum RAM amount
32 GB
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 Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and UHD Graphics 620 - with Gen. 9.5.
Both graphics cards have the same core clock speed.
Iris Plus Graphics 645 and UHD Graphics 620 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
4−5
2−3
ultra / 1080p
2−3
0−1
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
5−6
3−4
The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 16% more, than UHD Graphics 620.
high / 1080p
−
6−7
ultra / 1080p
7−8
4−5
QHD / 1440p
0−1
0−1
low / 720p
16−18
16−18
medium / 1080p
8−9
6−7
The average gaming FPS of Iris Plus Graphics 645 in Battlefield 5 is 22% more, than UHD Graphics 620.
low / 768p
45−50
45−50
high / 1080p
45−50
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of Iris Plus Graphics 645 in Call of Duty: Warzone is 4% more, than UHD Graphics 620.
low / 768p
100−110
100−110
medium / 768p
80−85
80−85
ultra / 1080p
35−40
40−45
QHD / 1440p
24−27
21−24
4K / 2160p
−
16−18
high / 768p
60−65
60−65
The average gaming FPS of UHD Graphics 620 in Counter-Strike: Global Offensive is 1% more, than Iris Plus Graphics 645.
low / 768p
55−60
85−90
ultra / 1080p
12−14
18−20
medium / 1080p
45−50
40−45
The average gaming FPS of UHD Graphics 620 in Cyberpunk 2077 is 25% more, than Iris Plus Graphics 645.
low / 768p
65−70
80−85
medium / 768p
45−50
55−60
ultra / 1080p
21−24
27−30
The average gaming FPS of UHD Graphics 620 in Dota 2 is 24% more, than Iris Plus Graphics 645.
high / 1080p
5−6
2−3
ultra / 1080p
5−6
2−3
4K / 2160p
3−4
1−2
low / 720p
12−14
12−14
medium / 1080p
5−6
3−4
The average gaming FPS of Iris Plus Graphics 645 in Far Cry 5 is 50% more, than UHD Graphics 620.
high / 1080p
12−14
10−11
ultra / 1080p
8−9
5−6
QHD / 1440p
−
1−2
low / 720p
45−50
50−55
medium / 1080p
12−14
12−14
Iris Plus Graphics 645 and UHD Graphics 620 have the same average FPS in Fortnite.
high / 1080p
8−9
5−6
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
16−18
16−18
medium / 1080p
9−10
8−9
The average gaming FPS of Iris Plus Graphics 645 in Forza Horizon 4 is 10% more, than UHD Graphics 620.
low / 768p
40−45
40−45
medium / 768p
35−40
35−40
high / 1080p
7−8
5−6
ultra / 1080p
5−6
3−4
QHD / 1440p
0−1
0−1
The average gaming FPS of Iris Plus Graphics 645 in Grand Theft Auto V is 4% more, than UHD Graphics 620.
high / 1080p
3−4
1−2
ultra / 1080p
2−3
0−1
4K / 2160p
0−1
−
low / 720p
7−8
5−6
medium / 1080p
4−5
3−4
The average gaming FPS of Iris Plus Graphics 645 in Metro Exodus is 66% more, than UHD Graphics 620.
low / 768p
85−90
95−100
high / 1080p
80−85
60−65
ultra / 1080p
70−75
−
medium / 1080p
−
85−90
The average gaming FPS of Iris Plus Graphics 645 in Minecraft is 6% more, than UHD Graphics 620.
high / 1080p
16−18
−
ultra / 1080p
14−16
12−14
low / 720p
24−27
27−30
medium / 1080p
16−18
14−16
The average gaming FPS of Iris Plus Graphics 645 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than UHD Graphics 620.
ultra / 1080p
7−8
4−5
QHD / 1440p
0−1
0−1
low / 720p
7−8
4−5
The average gaming FPS of Iris Plus Graphics 645 in Red Dead Redemption 2 is 75% more, than UHD Graphics 620.
low / 768p
16−18
12−14
medium / 768p
12−14
9−10
high / 1080p
6−7
4−5
ultra / 1080p
5−6
3−4
4K / 2160p
−
0−1
The average gaming FPS of Iris Plus Graphics 645 in The Witcher 3: Wild Hunt is 42% more, than UHD Graphics 620.
low / 768p
80−85
65−70
medium / 768p
35−40
35−40
ultra / 1080p
14−16
14−16
high / 768p
30−33
27−30
The average gaming FPS of Iris Plus Graphics 645 in World of Tanks is 10% more, than UHD Graphics 620.
Full Specs
Iris Plus Graphics 645
UHD Graphics 620
Architecture
Gen. 9.5 Coffee Lake
Gen. 9.5
Code name
Kaby Lake GT3e
Kaby-Lake-Refresh GT2
Type
Laptop
Laptop
Release date
10 July 2019
1 September 2017
Pipelines
48
24
Core clock speed
300 MHz
300 MHz
Boost Clock
1150 MHz
1150 MHz
Transistor count
189 million
Manufacturing process technology
14 nm
14 nm
Texture fill rate
50.40
27.60
Memory bus width
64/128 Bit
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
1.1.103
1.1.103
Quick Sync
+
+
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