Radeon HD 6990M vs Radeon Pro 555X
If you are going to buy a new graphics card and are choosing between Radeon HD 6990M and Radeon Pro 555X, 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 Radeon Pro 555X, check out specs charts below.
Radeon HD 6990M and Radeon Pro 555X are Laptop Graphics Cards
Note: Radeon HD 6990M and Radeon Pro 555X 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 Radeon Pro 555X here:
Main Specs
Radeon HD 6990M
Radeon Pro 555X
Power consumption (TDP)
100 Watt
75 Watt
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
None
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
No outputs
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Radeon HD 6990M has 33% more power consumption, than Radeon Pro 555X.
Radeon HD 6990M is connected by MXM-B (3.0), and Radeon Pro 555X uses PCIe 3.0 x8 interface.
Radeon HD 6990M and Radeon Pro 555X have maximum RAM of 2 GB.
Radeon HD 6990M is used in Laptops, and Radeon Pro 555X - in Mobile workstations.
Radeon HD 6990M is build with Terascale 2 architecture, and Radeon Pro 555X - with Polaris.
Core clock speed of Radeon Pro 555X is 140 MHz higher, than Radeon HD 6990M.
Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
Memory clock speed of Radeon Pro 555X is 4180 MHz higher, than Radeon HD 6990M.
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
16−18
ultra / 1080p
8−9
10−11
QHD / 1440p
3−4
4−5
4K / 2160p
−
4−5
low / 720p
30−33
30−35
medium / 1080p
16−18
21−24
The average gaming FPS of Radeon Pro 555X in Assassin's Creed Odyssey is 13% more, than Radeon HD 6990M.
high / 1080p
21−24
24−27
ultra / 1080p
18−20
21−24
QHD / 1440p
6−7
10−11
4K / 2160p
5−6
6−7
low / 720p
45−50
55−60
medium / 1080p
24−27
30−33
The average gaming FPS of Radeon Pro 555X in Battlefield 5 is 19% more, than Radeon HD 6990M.
low / 768p
45−50
45−50
QHD / 1440p
0−1
0−1
Radeon HD 6990M and Radeon Pro 555X have the same average FPS in Call of Duty: Warzone.
low / 768p
200−210
220−230
medium / 768p
170−180
190−200
ultra / 1080p
90−95
100−110
QHD / 1440p
50−55
60−65
4K / 2160p
30−33
30−35
high / 768p
130−140
150−160
The average gaming FPS of Radeon Pro 555X in Counter-Strike: Global Offensive is 12% more, than Radeon HD 6990M.
low / 768p
55−60
55−60
ultra / 1080p
35−40
40−45
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon Pro 555X in Cyberpunk 2077 is 4% more, than Radeon HD 6990M.
low / 768p
100−110
110−120
medium / 768p
90−95
95−100
ultra / 1080p
60−65
65−70
The average gaming FPS of Radeon Pro 555X in Dota 2 is 8% more, than Radeon HD 6990M.
high / 1080p
16−18
20−22
ultra / 1080p
14−16
18−20
QHD / 1440p
−
16−18
4K / 2160p
6−7
6−7
low / 720p
35−40
40−45
medium / 1080p
18−20
21−24
The average gaming FPS of Radeon Pro 555X in Far Cry 5 is 15% more, than Radeon HD 6990M.
high / 1080p
24−27
27−30
ultra / 1080p
18−20
21−24
QHD / 1440p
16−18
16−18
low / 720p
95−100
100−110
medium / 1080p
50−55
55−60
The average gaming FPS of Radeon Pro 555X in Fortnite is 9% more, than Radeon HD 6990M.
high / 1080p
24−27
27−30
ultra / 1080p
18−20
21−24
QHD / 1440p
8−9
10−11
4K / 2160p
−
10−11
low / 720p
50−55
55−60
medium / 1080p
27−30
30−35
The average gaming FPS of Radeon Pro 555X in Forza Horizon 4 is 15% more, than Radeon HD 6990M.
low / 768p
80−85
90−95
medium / 768p
70−75
80−85
high / 1080p
27−30
30−35
ultra / 1080p
10−12
12−14
QHD / 1440p
2−3
4−5
The average gaming FPS of Radeon Pro 555X in Grand Theft Auto V is 15% more, than Radeon HD 6990M.
high / 1080p
9−10
10−11
ultra / 1080p
7−8
8−9
4K / 2160p
2−3
3−4
low / 720p
27−30
30−35
medium / 1080p
12−14
14−16
The average gaming FPS of Radeon Pro 555X in Metro Exodus is 16% more, than Radeon HD 6990M.
low / 768p
110−120
110−120
ultra / 1080p
100−110
−
medium / 1080p
100−110
100−110
Radeon HD 6990M and Radeon Pro 555X have the same average FPS in Minecraft.
high / 1080p
21−24
24−27
ultra / 1080p
16−18
18−20
low / 720p
55−60
60−65
medium / 1080p
24−27
24−27
The average gaming FPS of Radeon Pro 555X in PLAYERUNKNOWN'S BATTLEGROUNDS is 10% more, than Radeon HD 6990M.
high / 1080p
14−16
14−16
ultra / 1080p
9−10
10−11
QHD / 1440p
0−1
0−1
low / 720p
27−30
30−35
medium / 1080p
16−18
18−20
The average gaming FPS of Radeon Pro 555X in Red Dead Redemption 2 is 11% more, than Radeon HD 6990M.
low / 768p
50−55
60−65
medium / 768p
30−35
35−40
high / 1080p
18−20
21−24
ultra / 1080p
10−11
12−14
4K / 2160p
8−9
8−9
The average gaming FPS of Radeon Pro 555X in The Witcher 3: Wild Hunt is 16% more, than Radeon HD 6990M.
low / 768p
100−105
100−110
medium / 768p
60−65
60−65
ultra / 1080p
30−35
35−40
high / 768p
50−55
55−60
The average gaming FPS of Radeon Pro 555X in World of Tanks is 4% more, than Radeon HD 6990M.
Full Specs
Radeon HD 6990M
Radeon Pro 555X
Architecture
Terascale 2
Polaris
Code name
Blackcomb XTX
Polaris 21
Type
Laptop
Mobile workstation
Release date
12 July 2011
5 June 2017
Pipelines
1120
768
Core clock speed
715 MHz
855 MHz
Transistor count
1,700 million
3,000 million
Manufacturing process technology
40 nm
14 nm
Texture fill rate
40.04
43.54
Floating-point performance
1,601.6 gflops
Memory bus width
256 Bit
128 Bit
Memory clock speed
900 MHz
5080 MHz
Memory bandwidth
115.2 GB/s
81.6 GB/s
Shared memory
-
-
DirectX
11.2 (11_0)
12 (12_0)
Shader Model
5.0
6.4
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2.131
FreeSync
+
Laptop size
large
large
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