Radeon HD 8870M vs Radeon R9 M390X
When comparing Radeon HD 8870M and Radeon R9 M390X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Radeon HD 8870M and Radeon R9 M390X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
Radeon HD 8870M and Radeon R9 M390X are Laptop Graphics Cards
Note: Radeon HD 8870M and Radeon R9 M390X 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 8870M or Radeon R9 M390X here:
Main Specs
Radeon HD 8870M
Radeon R9 M390X
Power consumption (TDP)
100 Watt
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
GDDR5, DDR3
GDDR5
Maximum RAM amount
2 GB
4 GB
Display Connectors
No outputs
No outputs
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Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
Radeon R9 M390X has 2 GB more memory, than Radeon HD 8870M.
Both cards are used in Laptops.
Radeon HD 8870M is build with GCN architecture, and Radeon R9 M390X - with GCN 3.
Core clock speed of Radeon HD 8870M is 2 MHz higher, than Radeon R9 M390X.
Radeon HD 8870M and Radeon R9 M390X are manufactured 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
7−8
21−24
ultra / 1080p
4−5
12−14
QHD / 1440p
0−1
8−9
4K / 2160p
−
5−6
low / 720p
18−20
40−45
medium / 1080p
9−10
27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 160% more, than Radeon HD 8870M.
high / 1080p
12−14
35−40
ultra / 1080p
10−12
30−35
QHD / 1440p
0−1
14−16
4K / 2160p
−
9−10
low / 720p
27−30
70−75
medium / 1080p
14−16
40−45
The average gaming FPS of Radeon R9 M390X in Battlefield 5 is 187% more, than Radeon HD 8870M.
low / 768p
45−50
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon R9 M390X in Call of Duty: Warzone is 10% more, than Radeon HD 8870M.
low / 768p
140−150
230−240
medium / 768p
110−120
210−220
ultra / 1080p
55−60
120−130
QHD / 1440p
30−35
100−110
4K / 2160p
27−30
55−60
high / 768p
85−90
170−180
The average gaming FPS of Radeon R9 M390X in Counter-Strike: Global Offensive is 97% more, than Radeon HD 8870M.
low / 768p
55−60
60−65
ultra / 1080p
21−24
55−60
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon R9 M390X in Cyberpunk 2077 is 40% more, than Radeon HD 8870M.
low / 768p
85−90
120−130
medium / 768p
60−65
110−120
ultra / 1080p
35−40
85−90
The average gaming FPS of Radeon R9 M390X in Dota 2 is 75% more, than Radeon HD 8870M.
high / 1080p
9−10
27−30
ultra / 1080p
8−9
24−27
QHD / 1440p
−
20−22
4K / 2160p
4−5
9−10
low / 720p
21−24
55−60
medium / 1080p
10−11
30−33
The average gaming FPS of Radeon R9 M390X in Far Cry 5 is 172% more, than Radeon HD 8870M.
high / 1080p
16−18
35−40
ultra / 1080p
10−12
27−30
QHD / 1440p
−
16−18
low / 720p
65−70
130−140
medium / 1080p
24−27
75−80
The average gaming FPS of Radeon R9 M390X in Fortnite is 130% more, than Radeon HD 8870M.
high / 1080p
12−14
35−40
ultra / 1080p
12−14
27−30
QHD / 1440p
2−3
16−18
4K / 2160p
−
14−16
low / 720p
27−30
75−80
medium / 1080p
14−16
40−45
The average gaming FPS of Radeon R9 M390X in Forza Horizon 4 is 185% more, than Radeon HD 8870M.
low / 768p
55−60
110−120
medium / 768p
45−50
95−100
high / 1080p
14−16
45−50
ultra / 1080p
7−8
18−20
QHD / 1440p
0−1
9−10
The average gaming FPS of Radeon R9 M390X in Grand Theft Auto V is 122% more, than Radeon HD 8870M.
high / 1080p
5−6
14−16
ultra / 1080p
3−4
10−12
QHD / 1440p
−
10−12
4K / 2160p
0−1
3−4
low / 720p
14−16
40−45
medium / 1080p
7−8
20−22
The average gaming FPS of Radeon R9 M390X in Metro Exodus is 214% more, than Radeon HD 8870M.
low / 768p
95−100
120−130
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
95−100
110−120
The average gaming FPS of Radeon R9 M390X in Minecraft is 23% more, than Radeon HD 8870M.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
35−40
75−80
medium / 1080p
18−20
18−20
The average gaming FPS of Radeon R9 M390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 60% more, than Radeon HD 8870M.
high / 1080p
−
16−18
ultra / 1080p
8−9
10−12
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
14−16
40−45
medium / 1080p
10−12
21−24
The average gaming FPS of Radeon R9 M390X in Red Dead Redemption 2 is 127% more, than Radeon HD 8870M.
low / 768p
27−30
80−85
medium / 768p
18−20
50−55
high / 1080p
10−11
27−30
ultra / 1080p
7−8
16−18
4K / 2160p
6−7
9−10
The average gaming FPS of Radeon R9 M390X in The Witcher 3: Wild Hunt is 171% more, than Radeon HD 8870M.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
21−24
40−45
high / 768p
35−40
55−60
The average gaming FPS of Radeon R9 M390X in World of Tanks is 31% more, than Radeon HD 8870M.
Full Specs
Radeon HD 8870M
Radeon R9 M390X
Architecture
GCN
GCN 3
Code name
Venus
Amethyst (XT) / Tonga
Type
Laptop
Laptop
Release date
18 December 2012
9 June 2015
Pipelines
640
2048
Core clock speed
725 MHz
723 MHz
Boost Clock
775 MHz
Transistor count
1,500 million
5,000 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
31.00
92.54
Floating-point performance
992.0 gflops
2,961 gflops
Memory bus width
128 Bit
256 Bit
Memory clock speed
4500 MHz
Memory bandwidth
72 GB/s
160.0 GB/s
Shared memory
-
-
DirectX
12 (11_1)
Shader Model
5.1
6.3
OpenGL
4.6
4.4
OpenCL
1.2
Not Listed
Vulkan
1.2.131
+
FreeSync
+
Bus support
PCIe 3.0
Bitcoin / BTC (SHA256)
107 Mh/s
Laptop size
large
large
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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