Radeon HD 8870M vs Radeon R9 M390
If you are going to buy a new graphics card and are choosing between Radeon HD 8870M and Radeon R9 M390, 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 8870M stacks up against Radeon R9 M390, check out specs charts below.
Radeon HD 8870M and Radeon R9 M390 are Laptop Graphics Cards
Note: Radeon HD 8870M and Radeon R9 M390 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 M390 here:
Main Specs
Radeon HD 8870M
Radeon R9 M390
Interface
PCIe 3.0 x16
Memory type
GDDR5, DDR3
GDDR5
Maximum RAM amount
2 GB
2 GB
Display Connectors
No outputs
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Radeon HD 8870M and Radeon R9 M390 have maximum RAM of 2 GB.
Both cards are used in Laptops.
Radeon HD 8870M and Radeon R9 M390 are build with GCN architecture.
Radeon HD 8870M and Radeon R9 M390 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
18−20
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
5−6
4K / 2160p
−
4−5
low / 720p
18−20
35−40
medium / 1080p
9−10
21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 120% more, than Radeon HD 8870M.
high / 1080p
12−14
27−30
ultra / 1080p
10−12
24−27
QHD / 1440p
0−1
10−12
4K / 2160p
−
7−8
low / 720p
27−30
60−65
medium / 1080p
14−16
30−35
The average gaming FPS of Radeon R9 M390 in Battlefield 5 is 131% more, than Radeon HD 8870M.
low / 768p
45−50
45−50
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Radeon HD 8870M and Radeon R9 M390 have the same average FPS in Call of Duty: Warzone.
low / 768p
140−150
220−230
medium / 768p
110−120
190−200
ultra / 1080p
55−60
110−120
QHD / 1440p
30−35
65−70
4K / 2160p
27−30
35−40
high / 768p
85−90
150−160
The average gaming FPS of Radeon R9 M390 in Counter-Strike: Global Offensive is 71% more, than Radeon HD 8870M.
low / 768p
55−60
55−60
ultra / 1080p
21−24
45−50
medium / 1080p
45−50
45−50
The average gaming FPS of Radeon R9 M390 in Cyberpunk 2077 is 19% more, than Radeon HD 8870M.
low / 768p
85−90
110−120
medium / 768p
60−65
100−110
ultra / 1080p
35−40
70−75
The average gaming FPS of Radeon R9 M390 in Dota 2 is 56% more, than Radeon HD 8870M.
high / 1080p
9−10
21−24
ultra / 1080p
8−9
18−20
QHD / 1440p
−
16−18
4K / 2160p
4−5
7−8
low / 720p
21−24
45−50
medium / 1080p
10−11
21−24
The average gaming FPS of Radeon R9 M390 in Far Cry 5 is 109% more, than Radeon HD 8870M.
high / 1080p
16−18
27−30
ultra / 1080p
10−12
21−24
QHD / 1440p
−
16−18
low / 720p
65−70
110−120
medium / 1080p
24−27
60−65
The average gaming FPS of Radeon R9 M390 in Fortnite is 90% more, than Radeon HD 8870M.
high / 1080p
12−14
30−33
ultra / 1080p
12−14
21−24
QHD / 1440p
2−3
12−14
4K / 2160p
−
10−12
low / 720p
27−30
60−65
medium / 1080p
14−16
30−35
The average gaming FPS of Radeon R9 M390 in Forza Horizon 4 is 128% more, than Radeon HD 8870M.
low / 768p
55−60
95−100
medium / 768p
45−50
85−90
high / 1080p
14−16
35−40
ultra / 1080p
7−8
14−16
QHD / 1440p
0−1
5−6
The average gaming FPS of Radeon R9 M390 in Grand Theft Auto V is 90% more, than Radeon HD 8870M.
high / 1080p
5−6
10−12
ultra / 1080p
3−4
9−10
4K / 2160p
0−1
3−4
low / 720p
14−16
35−40
medium / 1080p
7−8
14−16
The average gaming FPS of Radeon R9 M390 in Metro Exodus is 157% more, than Radeon HD 8870M.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
95−100
110−120
The average gaming FPS of Radeon R9 M390 in Minecraft is 18% more, than Radeon HD 8870M.
high / 1080p
16−18
24−27
ultra / 1080p
14−16
18−20
low / 720p
35−40
65−70
medium / 1080p
18−20
27−30
The average gaming FPS of Radeon R9 M390 in PLAYERUNKNOWN'S BATTLEGROUNDS is 59% more, than Radeon HD 8870M.
high / 1080p
−
14−16
ultra / 1080p
8−9
10−11
QHD / 1440p
0−1
0−1
low / 720p
14−16
30−35
medium / 1080p
10−12
18−20
The average gaming FPS of Radeon R9 M390 in Red Dead Redemption 2 is 81% more, than Radeon HD 8870M.
low / 768p
27−30
65−70
medium / 768p
18−20
40−45
high / 1080p
10−11
21−24
ultra / 1080p
7−8
12−14
4K / 2160p
6−7
9−10
The average gaming FPS of Radeon R9 M390 in The Witcher 3: Wild Hunt is 121% more, than Radeon HD 8870M.
low / 768p
85−90
100−110
medium / 768p
45−50
65−70
ultra / 1080p
21−24
35−40
high / 768p
35−40
55−60
The average gaming FPS of Radeon R9 M390 in World of Tanks is 37% more, than Radeon HD 8870M.
Full Specs
Radeon HD 8870M
Radeon R9 M390
Architecture
GCN
GCN
Code name
Venus
Pitcairn
Type
Laptop
Laptop
Release date
18 December 2012
9 June 2015
Pipelines
640
1024
Core clock speed
725 MHz
Boost Clock
775 MHz
Transistor count
1,500 million
5000 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
31.00
Floating-point performance
992.0 gflops
Memory bus width
128 Bit
256 Bit
Memory clock speed
4500 MHz
Memory bandwidth
72 GB/s
Shared memory
-
-
DirectX
12 (11_1)
Shader Model
5.1
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
242 Mh/s
Laptop size
large
large
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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