Mobility Radeon HD 3870 X2 vs Radeon Pro 555X
When choosing between Mobility Radeon HD 3870 X2 and Radeon Pro 555X, 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 Mobility Radeon HD 3870 X2 and Radeon Pro 555X.
Mobility Radeon HD 3870 X2 and Radeon Pro 555X are Laptop Graphics Cards
Note: Mobility Radeon HD 3870 X2 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 Mobility Radeon HD 3870 X2 or Radeon Pro 555X here:
Main Specs
Mobility Radeon HD 3870 X2
Radeon Pro 555X
Power consumption (TDP)
110 Watt
75 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
Memory type
GDDR3
GDDR5
Maximum RAM amount
512 MB
2 GB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 3870 X2 has 46% more power consumption, than Radeon Pro 555X.
Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon Pro 555X uses PCIe 3.0 x8 interface.
Mobility Radeon HD 3870 X2 has 510 GB more memory, than Radeon Pro 555X.
Mobility Radeon HD 3870 X2 is used in Laptops, and Radeon Pro 555X - in Mobile workstations.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon Pro 555X - with Polaris.
Core clock speed of Radeon Pro 555X is 195 MHz higher, than Mobility Radeon HD 3870 X2.
Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
Memory clock speed of Radeon Pro 555X is 4230 MHz higher, than Mobility Radeon HD 3870 X2.
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
16−18
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
16−18
30−35
medium / 1080p
8−9
21−24
The average gaming FPS of Radeon Pro 555X in Assassin's Creed Odyssey is 122% more, than Mobility Radeon HD 3870 X2.
high / 1080p
12−14
24−27
ultra / 1080p
10−11
21−24
QHD / 1440p
0−1
10−11
4K / 2160p
−
6−7
low / 720p
24−27
55−60
medium / 1080p
12−14
30−33
The average gaming FPS of Radeon Pro 555X in Battlefield 5 is 126% more, than Mobility Radeon HD 3870 X2.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Mobility Radeon HD 3870 X2 and Radeon Pro 555X have the same average FPS in Call of Duty: Warzone.
low / 768p
130−140
220−230
medium / 768p
110−120
190−200
ultra / 1080p
50−55
100−110
QHD / 1440p
27−30
60−65
4K / 2160p
27−30
30−35
high / 768p
80−85
150−160
The average gaming FPS of Radeon Pro 555X in Counter-Strike: Global Offensive is 76% more, than Mobility Radeon HD 3870 X2.
low / 768p
55−60
55−60
ultra / 1080p
18−20
40−45
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon Pro 555X in Cyberpunk 2077 is 19% more, than Mobility Radeon HD 3870 X2.
low / 768p
80−85
110−120
medium / 768p
55−60
95−100
ultra / 1080p
30−35
65−70
The average gaming FPS of Radeon Pro 555X in Dota 2 is 63% more, than Mobility Radeon HD 3870 X2.
high / 1080p
8−9
20−22
ultra / 1080p
7−8
18−20
QHD / 1440p
−
16−18
4K / 2160p
3−4
6−7
low / 720p
18−20
40−45
medium / 1080p
8−9
21−24
The average gaming FPS of Radeon Pro 555X in Far Cry 5 is 144% more, than Mobility Radeon HD 3870 X2.
high / 1080p
14−16
27−30
ultra / 1080p
10−11
21−24
QHD / 1440p
−
16−18
low / 720p
60−65
100−110
medium / 1080p
21−24
55−60
The average gaming FPS of Radeon Pro 555X in Fortnite is 96% more, than Mobility Radeon HD 3870 X2.
high / 1080p
12−14
27−30
ultra / 1080p
10−12
21−24
QHD / 1440p
1−2
10−11
4K / 2160p
−
10−11
low / 720p
24−27
55−60
medium / 1080p
14−16
30−35
The average gaming FPS of Radeon Pro 555X in Forza Horizon 4 is 130% more, than Mobility Radeon HD 3870 X2.
low / 768p
50−55
90−95
medium / 768p
45−50
80−85
high / 1080p
12−14
30−35
ultra / 1080p
6−7
12−14
QHD / 1440p
0−1
4−5
The average gaming FPS of Radeon Pro 555X in Grand Theft Auto V is 89% more, than Mobility Radeon HD 3870 X2.
high / 1080p
4−5
10−11
ultra / 1080p
3−4
8−9
4K / 2160p
0−1
3−4
low / 720p
12−14
30−35
medium / 1080p
6−7
14−16
The average gaming FPS of Radeon Pro 555X in Metro Exodus is 166% more, than Mobility Radeon HD 3870 X2.
low / 768p
95−100
110−120
high / 1080p
85−90
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
100−110
The average gaming FPS of Radeon Pro 555X in Minecraft is 15% more, than Mobility Radeon HD 3870 X2.
high / 1080p
16−18
24−27
ultra / 1080p
14−16
18−20
low / 720p
30−35
60−65
medium / 1080p
18−20
24−27
The average gaming FPS of Radeon Pro 555X in PLAYERUNKNOWN'S BATTLEGROUNDS is 65% more, than Mobility Radeon HD 3870 X2.
high / 1080p
−
14−16
ultra / 1080p
7−8
10−11
QHD / 1440p
0−1
0−1
low / 720p
12−14
30−35
medium / 1080p
10−12
18−20
The average gaming FPS of Radeon Pro 555X in Red Dead Redemption 2 is 100% more, than Mobility Radeon HD 3870 X2.
low / 768p
24−27
60−65
medium / 768p
16−18
35−40
high / 1080p
9−10
21−24
ultra / 1080p
6−7
12−14
4K / 2160p
6−7
8−9
The average gaming FPS of Radeon Pro 555X in The Witcher 3: Wild Hunt is 115% more, than Mobility Radeon HD 3870 X2.
low / 768p
85−90
100−110
medium / 768p
45−50
60−65
ultra / 1080p
18−20
35−40
high / 768p
35−40
55−60
The average gaming FPS of Radeon Pro 555X in World of Tanks is 38% more, than Mobility Radeon HD 3870 X2.
Full Specs
Mobility Radeon HD 3870 X2
Radeon Pro 555X
Architecture
RV6xx
Polaris
Code name
M88-XT CF
Polaris 21
Type
Laptop
Mobile workstation
Release date
1 September 2008
5 June 2017
Pipelines
640
768
Core clock speed
660 MHz
855 MHz
Transistor count
666 million
3,000 million
Manufacturing process technology
55 nm
14 nm
Texture fill rate
10.56
43.54
Floating-point performance
2x 422.4 gflops
Memory bus width
256 Bit
128 Bit
Memory clock speed
850 MHz
5080 MHz
Memory bandwidth
54.4 GB/s
81.6 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
12 (12_0)
Shader Model
4.1
6.4
OpenGL
3.3
4.6
OpenCL
N/A
2.0
Vulkan
N/A
1.2.131
FreeSync
+
Laptop size
large
large
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