GeForce GT 640 vs Iris Graphics 5100
When choosing between GeForce GT 640 and Iris Graphics 5100, 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 640 and Iris Graphics 5100.
Iris Graphics 5100 is a Laptop Graphics Card
Note: Iris Graphics 5100 is only used in laptop graphics. It has 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 5100 here:
Main Specs
GeForce GT 640
Iris Graphics 5100
Power consumption (TDP)
65 Watt
30 Watt
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
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GeForce GT 640 has 116% more power consumption, than Iris Graphics 5100.
GeForce GT 640 is connected by PCIe 3.0 x16, and Iris Graphics 5100 uses PCIe 1.0 x16 interface.
GeForce GT 640 is used in Desktops, and Iris Graphics 5100 - in Laptops.
GeForce GT 640 is build with Kepler architecture, and Iris Graphics 5100 - with Gen. 7.5 Haswell.
Core clock speed of GeForce GT 640 is 702 MHz higher, than Iris Graphics 5100.
GeForce GT 640 is manufactured by 28 nm process technology, and Iris Graphics 5100 - by 22 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
2−3
3−4
ultra / 1080p
1−2
1−2
QHD / 1440p
0−1
0−1
low / 720p
14−16
14−16
medium / 1080p
5−6
5−6
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
7−8
7−8
ultra / 1080p
5−6
6−7
QHD / 1440p
0−1
0−1
low / 720p
20−22
18−20
medium / 1080p
7−8
8−9
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in Battlefield 5.
low / 768p
50−55
50−55
high / 1080p
35−40
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of Iris Graphics 5100 in Call of Duty: Warzone is 4% more, than GeForce GT 640.
low / 768p
110−120
120−130
medium / 768p
90−95
100−110
ultra / 1080p
45−50
45−50
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
18−20
high / 768p
65−70
70−75
The average gaming FPS of Iris Graphics 5100 in Counter-Strike: Global Offensive is 6% more, than GeForce GT 640.
low / 768p
70−75
65−70
ultra / 1080p
21−24
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640 in Cyberpunk 2077 is 4% more, than Iris Graphics 5100.
low / 768p
70−75
75−80
medium / 768p
50−55
50−55
ultra / 1080p
27−30
24−27
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in Dota 2.
high / 1080p
3−4
4−5
ultra / 1080p
3−4
3−4
4K / 2160p
2−3
2−3
low / 720p
14−16
12−14
medium / 1080p
4−5
5−6
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in Far Cry 5.
high / 1080p
10−12
10−12
ultra / 1080p
5−6
6−7
QHD / 1440p
2−3
4−5
low / 720p
50−55
55−60
medium / 1080p
16−18
14−16
The average gaming FPS of Iris Graphics 5100 in Fortnite is 5% more, than GeForce GT 640.
high / 1080p
6−7
7−8
QHD / 1440p
4−5
4−5
4K / 2160p
2−3
3−4
low / 720p
21−24
20−22
medium / 1080p
9−10
9−10
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in Forza Horizon 4.
low / 768p
45−50
45−50
high / 1080p
7−8
6−7
ultra / 1080p
3−4
3−4
QHD / 1440p
0−1
0−1
medium / 720p
40−45
40−45
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in Grand Theft Auto V.
high / 1080p
2−3
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
6−7
medium / 1080p
4−5
4−5
The average gaming FPS of GeForce GT 640 in Metro Exodus is 25% more, than Iris Graphics 5100.
low / 768p
80−85
90−95
high / 1080p
−
80−85
ultra / 1080p
70−75
−
4K / 2160p
−
75−80
The average gaming FPS of Iris Graphics 5100 in Minecraft is 12% more, than GeForce GT 640.
ultra / 1080p
12−14
12−14
low / 720p
27−30
30−35
medium / 1080p
14−16
14−16
The average gaming FPS of Iris Graphics 5100 in PLAYERUNKNOWN'S BATTLEGROUNDS is 11% more, than GeForce GT 640.
high / 1080p
6−7
−
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
−
low / 720p
7−8
8−9
The average gaming FPS of Iris Graphics 5100 in Red Dead Redemption 2 is 33% more, than GeForce GT 640.
low / 768p
14−16
12−14
medium / 768p
10−11
10−11
high / 1080p
5−6
5−6
ultra / 1080p
4−5
4−5
4K / 2160p
0−1
1−2
GeForce GT 640 and Iris Graphics 5100 have the same average FPS in The Witcher 3: Wild Hunt.
low / 768p
70−75
75−80
medium / 768p
35−40
40−45
ultra / 1080p
16−18
16−18
high / 768p
30−35
30−35
The average gaming FPS of Iris Graphics 5100 in World of Tanks is 7% more, than GeForce GT 640.
Full Specs
GeForce GT 640
Iris Graphics 5100
Architecture
Kepler
Gen. 7.5 Haswell
Code name
GK107
Haswell GT3
Type
Desktop
Laptop
Release date
5 June 2012
5 June 2013
Pipelines
384
40
Core clock speed
902 MHz
200 MHz
Boost Clock
1200 MHz
Transistor count
1,270 million
1,300 million
Manufacturing process technology
28 nm
22 nm
Texture fill rate
28.86
48.00
Floating-point performance
692.7 gflops
Length
145 mm
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
1782 MHz
Memory bandwidth
28.51 GB/s
Shared memory
+
DirectX
12 (11_0)
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.6
4.3
OpenCL
1.2
1.2
Vulkan
1.1.126
1.1.80
CUDA
3.0
Bitcoin / BTC (SHA256)
24 Mh/s
Quick Sync
+
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