Mobility Radeon HD 3870 X2 vs Radeon R9 M280X
When choosing between Mobility Radeon HD 3870 X2 and Radeon R9 M280X, 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 R9 M280X.
Mobility Radeon HD 3870 X2 and Radeon R9 M280X are Laptop Graphics Cards
Note: Mobility Radeon HD 3870 X2 and Radeon R9 M280X 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 R9 M280X here:
Main Specs
Mobility Radeon HD 3870 X2
Radeon R9 M280X
Power consumption (TDP)
110 Watt
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Memory type
GDDR3
Not Listed
Maximum RAM amount
512 MB
Display Connectors
No outputs
No outputs
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Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon R9 M280X uses PCIe 3.0 x16 interface.
Both cards are used in Laptops.
Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon R9 M280X - with GCN.
Core clock speed of Radeon R9 M280X is 240 MHz higher, than Mobility Radeon HD 3870 X2.
Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon R9 M280X - by 28 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
1−2
QHD / 1440p
0−1
0−1
low / 720p
16−18
14−16
medium / 1080p
8−9
4−5
The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 80% more, than Radeon R9 M280X.
high / 1080p
12−14
7−8
ultra / 1080p
10−11
5−6
QHD / 1440p
0−1
0−1
low / 720p
24−27
18−20
medium / 1080p
12−14
7−8
The average gaming FPS of Mobility Radeon HD 3870 X2 in Battlefield 5 is 66% more, than Radeon R9 M280X.
low / 768p
45−50
50−55
high / 1080p
45−50
30−35
QHD / 1440p
0−1
0−1
The average gaming FPS of Mobility Radeon HD 3870 X2 in Call of Duty: Warzone is 11% more, than Radeon R9 M280X.
low / 768p
130−140
110−120
medium / 768p
110−120
90−95
ultra / 1080p
50−55
40−45
QHD / 1440p
27−30
24−27
4K / 2160p
27−30
18−20
high / 768p
80−85
65−70
The average gaming FPS of Mobility Radeon HD 3870 X2 in Counter-Strike: Global Offensive is 21% more, than Radeon R9 M280X.
low / 768p
55−60
70−75
ultra / 1080p
18−20
21−24
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon R9 M280X in Cyberpunk 2077 is 14% more, than Mobility Radeon HD 3870 X2.
low / 768p
80−85
70−75
medium / 768p
55−60
50−55
ultra / 1080p
30−35
27−30
The average gaming FPS of Mobility Radeon HD 3870 X2 in Dota 2 is 11% more, than Radeon R9 M280X.
high / 1080p
8−9
3−4
ultra / 1080p
7−8
3−4
4K / 2160p
3−4
2−3
low / 720p
18−20
14−16
medium / 1080p
8−9
4−5
The average gaming FPS of Mobility Radeon HD 3870 X2 in Far Cry 5 is 80% more, than Radeon R9 M280X.
high / 1080p
14−16
10−12
ultra / 1080p
10−11
5−6
QHD / 1440p
−
2−3
low / 720p
60−65
50−55
medium / 1080p
21−24
14−16
The average gaming FPS of Mobility Radeon HD 3870 X2 in Fortnite is 28% more, than Radeon R9 M280X.
high / 1080p
12−14
6−7
ultra / 1080p
10−12
−
QHD / 1440p
1−2
4−5
4K / 2160p
−
2−3
low / 720p
24−27
21−24
medium / 1080p
14−16
9−10
The average gaming FPS of Mobility Radeon HD 3870 X2 in Forza Horizon 4 is 30% more, than Radeon R9 M280X.
low / 768p
50−55
45−50
medium / 768p
45−50
40−45
high / 1080p
12−14
7−8
ultra / 1080p
6−7
3−4
QHD / 1440p
0−1
0−1
The average gaming FPS of Mobility Radeon HD 3870 X2 in Grand Theft Auto V is 16% more, than Radeon R9 M280X.
high / 1080p
4−5
2−3
ultra / 1080p
3−4
0−1
4K / 2160p
0−1
0−1
low / 720p
12−14
8−9
medium / 1080p
6−7
4−5
The average gaming FPS of Mobility Radeon HD 3870 X2 in Metro Exodus is 60% more, than Radeon R9 M280X.
low / 768p
95−100
80−85
high / 1080p
85−90
−
ultra / 1080p
80−85
70−75
medium / 1080p
90−95
−
The average gaming FPS of Mobility Radeon HD 3870 X2 in Minecraft is 16% more, than Radeon R9 M280X.
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 Mobility Radeon HD 3870 X2 in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than Radeon R9 M280X.
ultra / 1080p
7−8
6−7
QHD / 1440p
0−1
−
low / 720p
12−14
8−9
medium / 1080p
10−12
7−8
The average gaming FPS of Mobility Radeon HD 3870 X2 in Red Dead Redemption 2 is 42% more, than Radeon R9 M280X.
low / 768p
24−27
16−18
medium / 768p
16−18
10−12
high / 1080p
9−10
6−7
ultra / 1080p
6−7
4−5
4K / 2160p
6−7
2−3
The average gaming FPS of Mobility Radeon HD 3870 X2 in The Witcher 3: Wild Hunt is 62% more, than Radeon R9 M280X.
low / 768p
85−90
70−75
medium / 768p
45−50
35−40
ultra / 1080p
18−20
16−18
high / 768p
35−40
30−35
The average gaming FPS of Mobility Radeon HD 3870 X2 in World of Tanks is 20% more, than Radeon R9 M280X.
Full Specs
Mobility Radeon HD 3870 X2
Radeon R9 M280X
Architecture
RV6xx
GCN
Code name
M88-XT CF
Saturn XT
Type
Laptop
Laptop
Release date
1 September 2008
1 February 2015
Pipelines
640
896
Core clock speed
660 MHz
900 MHz
Transistor count
666 million
2,080 million
Manufacturing process technology
55 nm
28 nm
Texture fill rate
10.56
61.60
Floating-point performance
2x 422.4 gflops
1,792 gflops
Memory bus width
256 Bit
Memory clock speed
850 MHz
Memory bandwidth
54.4 GB/s
96 GB/s
Shared memory
-
-
DirectX
10.1 (10_1)
Shader Model
4.1
6.3
OpenGL
3.3
4.4
OpenCL
N/A
Not Listed
Vulkan
N/A
FreeSync
+
Bus support
Not Listed
Laptop size
large
large
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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