GeForce GT 640M vs Iris Graphics 6100
When choosing between GeForce GT 640M and Iris Graphics 6100, 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 Graphics 6100.
GeForce GT 640M and Iris Graphics 6100 are Laptop Graphics Cards
Note: GeForce GT 640M and Iris Graphics 6100 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 Graphics 6100 here:
Main Specs
GeForce GT 640M
Iris Graphics 6100
Power consumption (TDP)
32 Watt
15 Watt
Interface
PCIe 3.0 x16
PCIe 2.0 x1
Supplementary power connectors
None
Memory type
DDR3\GDDR5
System Shared
Maximum RAM amount
2 GB
Display Connectors
No outputs
No outputs
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GeForce GT 640M has 113% more power consumption, than Iris Graphics 6100.
GeForce GT 640M is connected by PCIe 3.0 x16, and Iris Graphics 6100 uses PCIe 2.0 x1 interface.
Both cards are used in Laptops.
GeForce GT 640M is build with Kepler architecture, and Iris Graphics 6100 - with Gen. 8 Broadwell.
GeForce GT 640M is manufactured by 28 nm process technology, and Iris Graphics 6100 - 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
4−5
ultra / 1080p
0−1
3−4
QHD / 1440p
0−1
0−1
low / 720p
10−12
12−14
medium / 1080p
2−3
5−6
The average gaming FPS of Iris Graphics 6100 in Assassin's Creed Odyssey is 50% more, than GeForce GT 640M.
ultra / 1080p
3−4
7−8
QHD / 1440p
0−1
0−1
low / 720p
12−14
18−20
medium / 1080p
4−5
8−9
The average gaming FPS of Iris Graphics 6100 in Battlefield 5 is 57% 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 Graphics 6100.
low / 768p
110−120
110−120
medium / 768p
85−90
85−90
ultra / 1080p
35−40
40−45
QHD / 1440p
−
24−27
4K / 2160p
10−11
−
high / 768p
55−60
60−65
The average gaming FPS of Iris Graphics 6100 in Counter-Strike: Global Offensive is 2% more, than GeForce GT 640M.
low / 768p
70−75
55−60
ultra / 1080p
12−14
14−16
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640M in Cyberpunk 2077 is 10% more, than Iris Graphics 6100.
low / 768p
70−75
70−75
medium / 768p
40−45
45−50
ultra / 1080p
18−20
24−27
The average gaming FPS of Iris Graphics 6100 in Dota 2 is 9% more, than GeForce GT 640M.
high / 1080p
2−3
6−7
ultra / 1080p
2−3
5−6
4K / 2160p
0−1
3−4
low / 720p
9−10
12−14
medium / 1080p
3−4
6−7
The average gaming FPS of Iris Graphics 6100 in Far Cry 5 is 75% more, than GeForce GT 640M.
high / 1080p
−
12−14
ultra / 1080p
5−6
8−9
QHD / 1440p
1−2
−
low / 720p
45−50
50−55
medium / 1080p
7−8
14−16
The average gaming FPS of Iris Graphics 6100 in Fortnite is 25% more, than GeForce GT 640M.
high / 1080p
2−3
9−10
ultra / 1080p
−
9−10
QHD / 1440p
0−1
0−1
low / 720p
14−16
18−20
medium / 1080p
5−6
10−11
The average gaming FPS of Iris Graphics 6100 in Forza Horizon 4 is 85% more, than GeForce GT 640M.
low / 768p
40−45
40−45
medium / 768p
−
35−40
high / 1080p
3−4
8−9
ultra / 1080p
2−3
5−6
QHD / 1440p
0−1
0−1
medium / 720p
30−35
−
The average gaming FPS of Iris Graphics 6100 in Grand Theft Auto V is 12% more, than GeForce GT 640M.
high / 1080p
1−2
3−4
ultra / 1080p
0−1
2−3
4K / 2160p
0−1
0−1
low / 720p
2−3
8−9
medium / 1080p
2−3
5−6
The average gaming FPS of Iris Graphics 6100 in Metro Exodus is 150% more, than GeForce GT 640M.
low / 768p
85−90
90−95
high / 1080p
55−60
80−85
ultra / 1080p
−
70−75
The average gaming FPS of Iris Graphics 6100 in Minecraft is 20% more, than GeForce GT 640M.
high / 1080p
14−16
16−18
ultra / 1080p
12−14
14−16
low / 720p
24−27
24−27
medium / 1080p
14−16
16−18
The average gaming FPS of Iris Graphics 6100 in PLAYERUNKNOWN'S BATTLEGROUNDS is 5% more, than GeForce GT 640M.
ultra / 1080p
3−4
7−8
QHD / 1440p
0−1
0−1
low / 720p
3−4
8−9
The average gaming FPS of Iris Graphics 6100 in Red Dead Redemption 2 is 166% more, than GeForce GT 640M.
low / 768p
7−8
18−20
medium / 768p
6−7
12−14
high / 1080p
3−4
7−8
ultra / 1080p
−
5−6
4K / 2160p
0−1
−
The average gaming FPS of Iris Graphics 6100 in The Witcher 3: Wild Hunt is 160% more, than GeForce GT 640M.
low / 768p
70−75
80−85
medium / 768p
35−40
35−40
ultra / 1080p
12−14
14−16
high / 768p
27−30
30−35
The average gaming FPS of Iris Graphics 6100 in World of Tanks is 10% more, than GeForce GT 640M.
Full Specs
GeForce GT 640M
Iris Graphics 6100
Architecture
Kepler
Gen. 8 Broadwell
Code name
N13P-GS
Broadwell GT3
Type
Laptop
Laptop
Release date
22 March 2012
5 January 2015
Pipelines
384
48
Core clock speed
300 MHz
Boost Clock
645 MHz
1100 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 (11_1)
Shader Model
5.1
5.1
OpenGL
4.5
4.4
OpenCL
1.1
2.0
Vulkan
1.1.126
1.1.80
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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