GeForce GT 640M vs Iris Plus Graphics 640
When choosing between GeForce GT 640M and Iris Plus Graphics 640, 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 GeForce GT 640M and Iris Plus Graphics 640.
GeForce GT 640M and Iris Plus Graphics 640 are Laptop Graphics Cards
Note: GeForce GT 640M and Iris Plus Graphics 640 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 GT 640M or Iris Plus Graphics 640 here:
Main Specs
GeForce GT 640M
Iris Plus Graphics 640
Power consumption (TDP)
32 Watt
15 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Memory type
DDR3\GDDR5
DDR3L/LPDDR3/DDR4
Maximum RAM amount
2 GB
32 GB
Display Connectors
No outputs
No outputs
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GeForce GT 640M has 113% more power consumption, than Iris Plus Graphics 640.
GeForce GT 640M is connected by PCIe 3.0 x16, and Iris Plus Graphics 640 uses PCIe 3.0 x1 interface.
Iris Plus Graphics 640 has 30 GB more memory, than GeForce GT 640M.
Both cards are used in Laptops.
GeForce GT 640M is build with Kepler architecture, and Iris Plus Graphics 640 - with Gen. 9.5 Kaby Lake.
GeForce GT 640M is manufactured by 28 nm process technology, and Iris Plus Graphics 640 - 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
0−1
6−7
ultra / 1080p
0−1
4−5
QHD / 1440p
0−1
0−1
low / 720p
10−12
16−18
medium / 1080p
2−3
8−9
The average gaming FPS of Iris Plus Graphics 640 in Assassin's Creed Odyssey is 100% more, than GeForce GT 640M.
high / 1080p
−
12−14
ultra / 1080p
3−4
10−11
QHD / 1440p
0−1
0−1
low / 720p
12−14
24−27
medium / 1080p
4−5
12−14
The average gaming FPS of Iris Plus Graphics 640 in Battlefield 5 is 128% more, than GeForce GT 640M.
low / 768p
50−55
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640M in Call of Duty: Warzone is 6% more, than Iris Plus Graphics 640.
low / 768p
110−120
130−140
medium / 768p
85−90
110−120
ultra / 1080p
35−40
50−55
QHD / 1440p
−
27−30
4K / 2160p
10−11
27−30
high / 768p
55−60
80−85
The average gaming FPS of Iris Plus Graphics 640 in Counter-Strike: Global Offensive is 34% more, than GeForce GT 640M.
low / 768p
70−75
55−60
ultra / 1080p
12−14
18−20
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640M in Cyberpunk 2077 is 7% more, than Iris Plus Graphics 640.
low / 768p
70−75
80−85
medium / 768p
40−45
55−60
ultra / 1080p
18−20
30−35
The average gaming FPS of Iris Plus Graphics 640 in Dota 2 is 29% more, than GeForce GT 640M.
high / 1080p
2−3
8−9
ultra / 1080p
2−3
7−8
4K / 2160p
0−1
3−4
low / 720p
9−10
18−20
medium / 1080p
3−4
8−9
The average gaming FPS of Iris Plus Graphics 640 in Far Cry 5 is 150% more, than GeForce GT 640M.
high / 1080p
−
14−16
ultra / 1080p
5−6
10−11
QHD / 1440p
1−2
−
low / 720p
45−50
60−65
medium / 1080p
7−8
21−24
The average gaming FPS of Iris Plus Graphics 640 in Fortnite is 55% more, than GeForce GT 640M.
high / 1080p
2−3
12−14
ultra / 1080p
−
10−12
QHD / 1440p
0−1
1−2
low / 720p
14−16
24−27
medium / 1080p
5−6
14−16
The average gaming FPS of Iris Plus Graphics 640 in Forza Horizon 4 is 142% more, than GeForce GT 640M.
low / 768p
40−45
50−55
medium / 768p
−
45−50
high / 1080p
3−4
12−14
ultra / 1080p
2−3
6−7
QHD / 1440p
0−1
0−1
medium / 720p
30−35
−
The average gaming FPS of Iris Plus Graphics 640 in Grand Theft Auto V is 50% more, than GeForce GT 640M.
high / 1080p
1−2
4−5
ultra / 1080p
0−1
3−4
4K / 2160p
0−1
0−1
low / 720p
2−3
12−14
medium / 1080p
2−3
6−7
The average gaming FPS of Iris Plus Graphics 640 in Metro Exodus is 300% more, than GeForce GT 640M.
low / 768p
85−90
95−100
high / 1080p
55−60
90−95
ultra / 1080p
−
80−85
medium / 1080p
−
90−95
The average gaming FPS of Iris Plus Graphics 640 in Minecraft is 31% more, than GeForce GT 640M.
high / 1080p
14−16
16−18
ultra / 1080p
12−14
14−16
low / 720p
24−27
30−35
medium / 1080p
14−16
18−20
The average gaming FPS of Iris Plus Graphics 640 in PLAYERUNKNOWN'S BATTLEGROUNDS is 17% more, than GeForce GT 640M.
ultra / 1080p
3−4
7−8
QHD / 1440p
0−1
0−1
low / 720p
3−4
12−14
medium / 1080p
−
10−12
The average gaming FPS of Iris Plus Graphics 640 in Red Dead Redemption 2 is 233% more, than GeForce GT 640M.
low / 768p
7−8
24−27
medium / 768p
6−7
16−18
high / 1080p
3−4
9−10
ultra / 1080p
−
6−7
4K / 2160p
0−1
6−7
The average gaming FPS of Iris Plus Graphics 640 in The Witcher 3: Wild Hunt is 240% more, than GeForce GT 640M.
low / 768p
70−75
85−90
medium / 768p
35−40
45−50
ultra / 1080p
12−14
18−20
high / 768p
27−30
35−40
The average gaming FPS of Iris Plus Graphics 640 in World of Tanks is 27% more, than GeForce GT 640M.
Full Specs
GeForce GT 640M
Iris Plus Graphics 640
Architecture
Kepler
Gen. 9.5 Kaby Lake
Code name
N13P-GS
Kaby Lake GT3e
Type
Laptop
Laptop
Release date
22 March 2012
3 January 2017
Pipelines
384
48
Core clock speed
300 MHz
Boost Clock
645 MHz
1050 MHz
Transistor count
1,270 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
52.80
Floating-point performance
480.0 gflops
Memory bus width
128bit
64/128 Bit
Memory clock speed
1800 - 4000 MHz
Shared memory
-
+
DirectX
12 API
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.5
4.6
OpenCL
1.1
2.1
Vulkan
1.1.126
1.1.103
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
18 Mh/s
Laptop size
medium sized
Optimus
+
Quick Sync
+
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