Radeon HD 6990M vs UHD Graphics 620
If you are going to buy a new graphics card and are choosing between Radeon HD 6990M and UHD Graphics 620, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6990M stacks up against UHD Graphics 620, check out specs charts below.
Radeon HD 6990M and UHD Graphics 620 are Laptop Graphics Cards
Note: Radeon HD 6990M 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 6990M or UHD Graphics 620 here:
Main Specs
Radeon HD 6990M
UHD Graphics 620
Power consumption (TDP)
100 Watt
15 Watt
Interface
MXM-B (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 6990M has 566% more power consumption, than UHD Graphics 620.
Radeon HD 6990M 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 Radeon HD 6990M.
Both cards are used in Laptops.
Radeon HD 6990M is build with Terascale 2 architecture, and UHD Graphics 620 - with Gen. 9.5.
Core clock speed of Radeon HD 6990M is 415 MHz higher, than UHD Graphics 620.
Radeon HD 6990M is manufactured by 40 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
14−16
2−3
ultra / 1080p
8−9
0−1
QHD / 1440p
3−4
0−1
low / 720p
30−33
12−14
medium / 1080p
16−18
3−4
The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 250% more, than UHD Graphics 620.
high / 1080p
21−24
6−7
ultra / 1080p
18−20
4−5
QHD / 1440p
6−7
0−1
4K / 2160p
5−6
−
low / 720p
45−50
16−18
medium / 1080p
24−27
6−7
The average gaming FPS of Radeon HD 6990M in Battlefield 5 is 250% more, than UHD Graphics 620.
low / 768p
45−50
45−50
high / 1080p
−
40−45
QHD / 1440p
0−1
0−1
Radeon HD 6990M and UHD Graphics 620 have the same average FPS in Call of Duty: Warzone.
low / 768p
200−210
100−110
medium / 768p
170−180
80−85
ultra / 1080p
90−95
40−45
QHD / 1440p
50−55
21−24
4K / 2160p
30−33
16−18
high / 768p
130−140
60−65
The average gaming FPS of Radeon HD 6990M in Counter-Strike: Global Offensive is 109% more, than UHD Graphics 620.
low / 768p
55−60
85−90
ultra / 1080p
35−40
18−20
medium / 1080p
45−50
40−45
The average gaming FPS of UHD Graphics 620 in Cyberpunk 2077 is 4% more, than Radeon HD 6990M.
low / 768p
100−110
80−85
medium / 768p
90−95
55−60
ultra / 1080p
60−65
27−30
The average gaming FPS of Radeon HD 6990M in Dota 2 is 53% more, than UHD Graphics 620.
high / 1080p
16−18
2−3
ultra / 1080p
14−16
2−3
4K / 2160p
6−7
1−2
low / 720p
35−40
12−14
medium / 1080p
18−20
3−4
The average gaming FPS of Radeon HD 6990M in Far Cry 5 is 375% more, than UHD Graphics 620.
high / 1080p
24−27
10−11
ultra / 1080p
18−20
5−6
QHD / 1440p
16−18
1−2
low / 720p
95−100
50−55
medium / 1080p
50−55
12−14
The average gaming FPS of Radeon HD 6990M in Fortnite is 162% more, than UHD Graphics 620.
high / 1080p
24−27
5−6
ultra / 1080p
18−20
−
QHD / 1440p
8−9
3−4
4K / 2160p
−
2−3
low / 720p
50−55
16−18
medium / 1080p
27−30
8−9
The average gaming FPS of Radeon HD 6990M in Forza Horizon 4 is 250% more, than UHD Graphics 620.
low / 768p
80−85
40−45
medium / 768p
70−75
35−40
high / 1080p
27−30
5−6
ultra / 1080p
10−12
3−4
QHD / 1440p
2−3
0−1
The average gaming FPS of Radeon HD 6990M in Grand Theft Auto V is 118% more, than UHD Graphics 620.
high / 1080p
9−10
1−2
ultra / 1080p
7−8
0−1
4K / 2160p
2−3
−
low / 720p
27−30
5−6
medium / 1080p
12−14
3−4
The average gaming FPS of Radeon HD 6990M in Metro Exodus is 466% more, than UHD Graphics 620.
low / 768p
110−120
95−100
high / 1080p
−
60−65
ultra / 1080p
100−110
−
medium / 1080p
100−110
85−90
The average gaming FPS of Radeon HD 6990M in Minecraft is 19% more, than UHD Graphics 620.
high / 1080p
21−24
−
ultra / 1080p
16−18
12−14
low / 720p
55−60
27−30
medium / 1080p
24−27
14−16
The average gaming FPS of Radeon HD 6990M in PLAYERUNKNOWN'S BATTLEGROUNDS is 83% more, than UHD Graphics 620.
high / 1080p
14−16
−
ultra / 1080p
9−10
4−5
QHD / 1440p
0−1
0−1
low / 720p
27−30
4−5
medium / 1080p
16−18
−
The average gaming FPS of Radeon HD 6990M in Red Dead Redemption 2 is 375% more, than UHD Graphics 620.
low / 768p
50−55
12−14
medium / 768p
30−35
9−10
high / 1080p
18−20
4−5
ultra / 1080p
10−11
3−4
4K / 2160p
8−9
0−1
The average gaming FPS of Radeon HD 6990M in The Witcher 3: Wild Hunt is 300% more, than UHD Graphics 620.
low / 768p
100−105
65−70
medium / 768p
60−65
35−40
ultra / 1080p
30−35
14−16
high / 768p
50−55
27−30
The average gaming FPS of Radeon HD 6990M in World of Tanks is 67% more, than UHD Graphics 620.
Full Specs
Radeon HD 6990M
UHD Graphics 620
Architecture
Terascale 2
Gen. 9.5
Code name
Blackcomb XTX
Kaby-Lake-Refresh GT2
Type
Laptop
Laptop
Release date
12 July 2011
1 September 2017
Pipelines
1120
24
Core clock speed
715 MHz
300 MHz
Boost Clock
1150 MHz
Transistor count
1,700 million
189 million
Manufacturing process technology
40 nm
14 nm
Texture fill rate
40.04
27.60
Floating-point performance
1,601.6 gflops
Memory bus width
256 Bit
64/128 Bit
Memory clock speed
900 MHz
Memory bandwidth
115.2 GB/s
Shared memory
-
+
DirectX
11.2 (11_0)
12 (12_1)
Shader Model
5.0
6.4
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.1.103
Laptop size
large
Quick Sync
+
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