Radeon HD 8790M vs UHD Graphics 620
In this comparison between Radeon HD 8790M and UHD Graphics 620 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 8790M will be the best choice, for others UHD Graphics 620 will be their preference. Study the comparison tables below and make your choice.
Radeon HD 8790M and UHD Graphics 620 are Laptop Graphics Cards
Note: Radeon HD 8790M 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 Radeon HD 8790M or UHD Graphics 620 here:
Main Specs
Radeon HD 8790M
UHD Graphics 620
Power consumption (TDP)
15 Watt
Interface
MXM-A (3.0)
PCIe 3.0 x1
Supplementary power connectors
None
Memory type
GDDR5
LPDDR3/DDR4
Maximum RAM amount
2 GB
32 GB
Display Connectors
No outputs
No outputs
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Radeon HD 8790M is connected by MXM-A (3.0), and UHD Graphics 620 uses PCIe 3.0 x1 interface.
UHD Graphics 620 has 30 GB more memory, than Radeon HD 8790M.
Both cards are used in Laptops.
Radeon HD 8790M is build with GCN architecture, and UHD Graphics 620 - with Gen. 9.5.
Core clock speed of Radeon HD 8790M is 550 MHz higher, than UHD Graphics 620.
Radeon HD 8790M 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
3−4
2−3
ultra / 1080p
1−2
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
12−14
medium / 1080p
6−7
3−4
The average gaming FPS of Radeon HD 8790M in Assassin's Creed Odyssey is 33% more, than UHD Graphics 620.
high / 1080p
8−9
6−7
ultra / 1080p
6−7
4−5
QHD / 1440p
0−1
0−1
low / 720p
21−24
16−18
medium / 1080p
9−10
6−7
The average gaming FPS of Radeon HD 8790M in Battlefield 5 is 37% more, than UHD Graphics 620.
low / 768p
45−50
45−50
high / 1080p
40−45
40−45
QHD / 1440p
0−1
0−1
Radeon HD 8790M and UHD Graphics 620 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
100−110
medium / 768p
100−110
80−85
ultra / 1080p
50−55
40−45
QHD / 1440p
24−27
21−24
4K / 2160p
−
16−18
high / 768p
75−80
60−65
The average gaming FPS of Radeon HD 8790M in Counter-Strike: Global Offensive is 22% more, than UHD Graphics 620.
low / 768p
70−75
85−90
ultra / 1080p
21−24
18−20
medium / 1080p
40−45
40−45
The average gaming FPS of UHD Graphics 620 in Cyberpunk 2077 is 8% more, than Radeon HD 8790M.
low / 768p
75−80
80−85
medium / 768p
55−60
55−60
ultra / 1080p
30−35
27−30
The average gaming FPS of UHD Graphics 620 in Dota 2 is 1% more, than Radeon HD 8790M.
high / 1080p
4−5
2−3
ultra / 1080p
4−5
2−3
4K / 2160p
1−2
1−2
low / 720p
14−16
12−14
medium / 1080p
6−7
3−4
The average gaming FPS of Radeon HD 8790M in Far Cry 5 is 50% more, than UHD Graphics 620.
high / 1080p
12−14
10−11
ultra / 1080p
7−8
5−6
QHD / 1440p
4−5
1−2
low / 720p
60−65
50−55
medium / 1080p
18−20
12−14
The average gaming FPS of Radeon HD 8790M in Fortnite is 31% more, than UHD Graphics 620.
high / 1080p
8−9
5−6
ultra / 1080p
7−8
−
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
21−24
16−18
medium / 1080p
10−11
8−9
The average gaming FPS of Radeon HD 8790M in Forza Horizon 4 is 30% more, than UHD Graphics 620.
low / 768p
50−55
40−45
medium / 768p
−
35−40
high / 1080p
10−11
5−6
ultra / 1080p
4−5
3−4
QHD / 1440p
0−1
0−1
medium / 720p
40−45
−
The average gaming FPS of Radeon HD 8790M in Grand Theft Auto V is 29% more, than UHD Graphics 620.
high / 1080p
2−3
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
−
low / 720p
9−10
5−6
medium / 1080p
4−5
3−4
The average gaming FPS of Radeon HD 8790M in Metro Exodus is 66% more, than UHD Graphics 620.
low / 768p
85−90
95−100
high / 1080p
70−75
60−65
medium / 1080p
−
85−90
Radeon HD 8790M and UHD Graphics 620 have the same average FPS in Minecraft.
ultra / 1080p
12−14
12−14
low / 720p
30−35
27−30
medium / 1080p
14−16
14−16
The average gaming FPS of Radeon HD 8790M in PLAYERUNKNOWN'S BATTLEGROUNDS is 11% more, than UHD Graphics 620.
high / 1080p
7−8
−
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
8−9
4−5
medium / 1080p
8−9
−
The average gaming FPS of Radeon HD 8790M in Red Dead Redemption 2 is 50% more, than UHD Graphics 620.
low / 768p
20−22
12−14
medium / 768p
12−14
9−10
high / 1080p
7−8
4−5
ultra / 1080p
5−6
3−4
4K / 2160p
1−2
0−1
The average gaming FPS of Radeon HD 8790M in The Witcher 3: Wild Hunt is 57% more, than UHD Graphics 620.
low / 768p
75−80
65−70
medium / 768p
40−45
35−40
ultra / 1080p
18−20
14−16
high / 768p
30−35
27−30
The average gaming FPS of Radeon HD 8790M in World of Tanks is 13% more, than UHD Graphics 620.
Full Specs
Radeon HD 8790M
UHD Graphics 620
Architecture
GCN
Gen. 9.5
Code name
Mars XTX
Kaby-Lake-Refresh GT2
Type
Laptop
Laptop
Release date
16 November 2012
1 September 2017
Pipelines
384
24
Core clock speed
850 MHz
300 MHz
Boost Clock
900 MHz
1150 MHz
Transistor count
950 million
189 million
Manufacturing process technology
28 nm
14 nm
Texture fill rate
21.60
27.60
Floating-point performance
691.2 gflops
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
4500 MHz
Memory bandwidth
64 GB/s
Shared memory
-
+
DirectX
12 (11_1)
12 (12_1)
Shader Model
5.1
6.4
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2.131
1.1.103
Bitcoin / BTC (SHA256)
80 Mh/s
Laptop size
medium sized
Quick Sync
+
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