GeForce GTX 660M vs UHD Graphics 620
When choosing between GeForce GTX 660M and UHD Graphics 620, 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 GTX 660M and UHD Graphics 620.
GeForce GTX 660M and UHD Graphics 620 are Laptop Graphics Cards
Note: GeForce GTX 660M 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 GeForce GTX 660M or UHD Graphics 620 here:
Main Specs
GeForce GTX 660M
UHD Graphics 620
Power consumption (TDP)
50 Watt
15 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x1
Memory type
GDDR5
LPDDR3/DDR4
Maximum RAM amount
2 GB
32 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 660M has 233% more power consumption, than UHD Graphics 620.
GeForce GTX 660M is connected by MXM-B (3.0), and UHD Graphics 620 uses PCIe 3.0 x1 interface.
UHD Graphics 620 has 30 GB more memory, than GeForce GTX 660M.
Both cards are used in Laptops.
GeForce GTX 660M is build with Kepler architecture, and UHD Graphics 620 - with Gen. 9.5.
Core clock speed of GeForce GTX 660M is 535 MHz higher, than UHD Graphics 620.
GeForce GTX 660M is manufactured by 28 nm process technology, and UHD Graphics 620 - 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
2−3
ultra / 1080p
4−5
0−1
QHD / 1440p
0−1
0−1
low / 720p
16−18
12−14
medium / 1080p
8−9
3−4
The average gaming FPS of GeForce GTX 660M in Assassin's Creed Odyssey is 66% more, than UHD Graphics 620.
high / 1080p
12−14
6−7
ultra / 1080p
10−11
4−5
QHD / 1440p
0−1
0−1
low / 720p
24−27
16−18
medium / 1080p
12−14
6−7
The average gaming FPS of GeForce GTX 660M in Battlefield 5 is 87% 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 GeForce GTX 660M in Call of Duty: Warzone is 4% more, than UHD Graphics 620.
low / 768p
130−140
100−110
medium / 768p
110−120
80−85
ultra / 1080p
50−55
40−45
QHD / 1440p
27−30
21−24
4K / 2160p
27−30
16−18
high / 768p
80−85
60−65
The average gaming FPS of GeForce GTX 660M in Counter-Strike: Global Offensive is 32% more, than UHD Graphics 620.
low / 768p
55−60
85−90
ultra / 1080p
18−20
18−20
medium / 1080p
45−50
40−45
The average gaming FPS of UHD Graphics 620 in Cyberpunk 2077 is 19% more, than GeForce GTX 660M.
low / 768p
80−85
80−85
medium / 768p
55−60
55−60
ultra / 1080p
30−35
27−30
The average gaming FPS of GeForce GTX 660M in Dota 2 is 1% more, than UHD Graphics 620.
high / 1080p
8−9
2−3
ultra / 1080p
7−8
2−3
4K / 2160p
3−4
1−2
low / 720p
18−20
12−14
medium / 1080p
8−9
3−4
The average gaming FPS of GeForce GTX 660M in Far Cry 5 is 125% more, than UHD Graphics 620.
high / 1080p
14−16
10−11
ultra / 1080p
10−11
5−6
QHD / 1440p
−
1−2
low / 720p
60−65
50−55
medium / 1080p
21−24
12−14
The average gaming FPS of GeForce GTX 660M in Fortnite is 35% more, than UHD Graphics 620.
high / 1080p
12−14
5−6
ultra / 1080p
10−12
−
QHD / 1440p
1−2
3−4
4K / 2160p
−
2−3
low / 720p
24−27
16−18
medium / 1080p
14−16
8−9
The average gaming FPS of GeForce GTX 660M in Forza Horizon 4 is 62% more, than UHD Graphics 620.
low / 768p
50−55
40−45
medium / 768p
45−50
35−40
high / 1080p
12−14
5−6
ultra / 1080p
6−7
3−4
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 660M in Grand Theft Auto V is 31% more, than UHD Graphics 620.
high / 1080p
4−5
1−2
ultra / 1080p
3−4
0−1
4K / 2160p
0−1
−
low / 720p
12−14
5−6
medium / 1080p
6−7
3−4
The average gaming FPS of GeForce GTX 660M in Metro Exodus is 166% more, than UHD Graphics 620.
low / 768p
95−100
95−100
high / 1080p
90−95
60−65
ultra / 1080p
80−85
−
medium / 1080p
90−95
85−90
The average gaming FPS of GeForce GTX 660M in Minecraft is 14% more, than UHD Graphics 620.
high / 1080p
16−18
−
ultra / 1080p
14−16
12−14
low / 720p
30−35
27−30
medium / 1080p
18−20
14−16
The average gaming FPS of GeForce GTX 660M in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than UHD Graphics 620.
ultra / 1080p
7−8
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
4−5
medium / 1080p
10−12
−
The average gaming FPS of GeForce GTX 660M in Red Dead Redemption 2 is 150% more, than UHD Graphics 620.
low / 768p
24−27
12−14
medium / 768p
16−18
9−10
high / 1080p
9−10
4−5
ultra / 1080p
6−7
3−4
4K / 2160p
6−7
0−1
The average gaming FPS of GeForce GTX 660M in The Witcher 3: Wild Hunt is 100% more, than UHD Graphics 620.
low / 768p
85−90
65−70
medium / 768p
45−50
35−40
ultra / 1080p
18−20
14−16
high / 768p
35−40
27−30
The average gaming FPS of GeForce GTX 660M in World of Tanks is 27% more, than UHD Graphics 620.
Full Specs
GeForce GTX 660M
UHD Graphics 620
Architecture
Kepler
Gen. 9.5
Code name
N13E-GE
Kaby-Lake-Refresh GT2
Type
Laptop
Laptop
Release date
22 March 2012
1 September 2017
Pipelines
384
24
Core clock speed
835 MHz
300 MHz
Boost Clock
950 MHz
1150 MHz
Transistor count
1,270 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
30.4 billion/sec
27.60
Floating-point performance
729.6 gflops
Memory bus width
128bit
64/128 Bit
Memory clock speed
2000 MHz
Memory bandwidth
64.0 GB/s
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
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
36 Mh/s
Laptop size
large
Optimus
+
Quick Sync
+
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