Iris Plus Graphics 640 vs Iris Plus Graphics 645
When comparing Iris Plus Graphics 640 and Iris Plus Graphics 645, 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 640 and Iris Plus Graphics 645 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Iris Plus Graphics 640 and Iris Plus Graphics 645 are Laptop Graphics Cards
Note: Iris Plus Graphics 640 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 Plus Graphics 640 or Iris Plus Graphics 645 here:
Main Specs
Iris Plus Graphics 640
Iris Plus Graphics 645
Power consumption (TDP)
15 Watt
15 Watt
Interface
PCIe 3.0 x1
PCIe 3.0 x1
Memory type
DDR3L/LPDDR3/DDR4
DDR3/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 640 is build with Gen. 9.5 Kaby Lake architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
Both graphics cards have the same core clock speed.
Iris Plus Graphics 640 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
6−7
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 Iris Plus Graphics 640 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 Iris Plus Graphics 640 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
Iris Plus Graphics 640 and Iris Plus Graphics 645 have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
100−110
medium / 768p
110−120
80−85
ultra / 1080p
50−55
35−40
QHD / 1440p
27−30
24−27
4K / 2160p
27−30
−
high / 768p
80−85
60−65
The average gaming FPS of Iris Plus Graphics 640 in Counter-Strike: Global Offensive is 32% more, than Iris Plus Graphics 645.
low / 768p
55−60
55−60
ultra / 1080p
18−20
12−14
medium / 1080p
45−50
45−50
The average gaming FPS of Iris Plus Graphics 640 in Cyberpunk 2077 is 5% more, than Iris Plus Graphics 645.
low / 768p
80−85
65−70
medium / 768p
55−60
45−50
ultra / 1080p
30−35
21−24
The average gaming FPS of Iris Plus Graphics 640 in Dota 2 is 26% more, than Iris Plus Graphics 645.
high / 1080p
8−9
5−6
ultra / 1080p
7−8
5−6
4K / 2160p
3−4
3−4
low / 720p
18−20
12−14
medium / 1080p
8−9
5−6
The average gaming FPS of Iris Plus Graphics 640 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
21−24
12−14
The average gaming FPS of Iris Plus Graphics 640 in Fortnite is 35% more, than Iris Plus Graphics 645.
high / 1080p
12−14
8−9
ultra / 1080p
10−12
−
QHD / 1440p
1−2
0−1
low / 720p
24−27
16−18
medium / 1080p
14−16
9−10
The average gaming FPS of Iris Plus Graphics 640 in Forza Horizon 4 is 54% 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 Iris Plus Graphics 640 in Grand Theft Auto V is 26% more, than Iris Plus Graphics 645.
high / 1080p
4−5
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 Iris Plus Graphics 640 in Metro Exodus is 50% 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 Iris Plus Graphics 640 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 Iris Plus Graphics 640 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 Iris Plus Graphics 640 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 Iris Plus Graphics 640 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
18−20
14−16
high / 768p
35−40
30−33
The average gaming FPS of Iris Plus Graphics 640 in World of Tanks is 14% more, than Iris Plus Graphics 645.
Full Specs
Iris Plus Graphics 640
Iris Plus Graphics 645
Architecture
Gen. 9.5 Kaby Lake
Gen. 9.5 Coffee Lake
Code name
Kaby Lake GT3e
Kaby Lake GT3e
Type
Laptop
Laptop
Release date
3 January 2017
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
52.80
50.40
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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