GeForce 840M vs Radeon R9 M390
When comparing GeForce 840M and Radeon R9 M390, 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 GeForce 840M and Radeon R9 M390 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840M and Radeon R9 M390 are Laptop Graphics Cards
Note: GeForce 840M 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 GeForce 840M or Radeon R9 M390 here:
Main Specs
GeForce 840M
Radeon R9 M390
Power consumption (TDP)
33 Watt
Interface
PCIe 3.0 x8
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
2 GB
Display Connectors
No outputs
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GeForce 840M has 2 GB more memory, than Radeon R9 M390.
Both cards are used in Laptops.
GeForce 840M is build with Maxwell architecture, and Radeon R9 M390 - with GCN.
GeForce 840M 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
1−2
18−20
ultra / 1080p
0−1
10−11
QHD / 1440p
0−1
5−6
4K / 2160p
−
4−5
low / 720p
12−14
35−40
medium / 1080p
3−4
21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 333% more, than GeForce 840M.
high / 1080p
−
27−30
ultra / 1080p
4−5
24−27
QHD / 1440p
0−1
10−12
4K / 2160p
−
7−8
low / 720p
16−18
60−65
medium / 1080p
5−6
30−35
The average gaming FPS of Radeon R9 M390 in Battlefield 5 is 344% more, than GeForce 840M.
low / 768p
45−50
45−50
high / 1080p
40−45
−
QHD / 1440p
0−1
0−1
GeForce 840M and Radeon R9 M390 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
220−230
medium / 768p
90−95
190−200
ultra / 1080p
40−45
110−120
QHD / 1440p
24−27
65−70
4K / 2160p
18−20
35−40
high / 768p
65−70
150−160
The average gaming FPS of Radeon R9 M390 in Counter-Strike: Global Offensive is 112% more, than GeForce 840M.
low / 768p
85−90
55−60
ultra / 1080p
16−18
45−50
medium / 1080p
40−45
45−50
The average gaming FPS of Radeon R9 M390 in Cyberpunk 2077 is 2% more, than GeForce 840M.
low / 768p
75−80
110−120
medium / 768p
50−55
100−110
ultra / 1080p
24−27
70−75
The average gaming FPS of Radeon R9 M390 in Dota 2 is 90% more, than GeForce 840M.
high / 1080p
2−3
21−24
ultra / 1080p
2−3
18−20
QHD / 1440p
−
16−18
4K / 2160p
0−1
7−8
low / 720p
12−14
45−50
medium / 1080p
3−4
21−24
The average gaming FPS of Radeon R9 M390 in Far Cry 5 is 440% more, than GeForce 840M.
high / 1080p
10−11
27−30
ultra / 1080p
5−6
21−24
QHD / 1440p
2−3
16−18
low / 720p
50−55
110−120
medium / 1080p
10−12
60−65
The average gaming FPS of Radeon R9 M390 in Fortnite is 206% more, than GeForce 840M.
high / 1080p
4−5
30−33
ultra / 1080p
−
21−24
QHD / 1440p
0−1
12−14
4K / 2160p
−
10−12
low / 720p
16−18
60−65
medium / 1080p
7−8
30−35
The average gaming FPS of Radeon R9 M390 in Forza Horizon 4 is 366% more, than GeForce 840M.
low / 768p
45−50
95−100
medium / 768p
−
85−90
high / 1080p
5−6
35−40
ultra / 1080p
2−3
14−16
QHD / 1440p
0−1
5−6
medium / 720p
35−40
−
The average gaming FPS of Radeon R9 M390 in Grand Theft Auto V is 177% more, than GeForce 840M.
high / 1080p
1−2
10−12
ultra / 1080p
0−1
9−10
4K / 2160p
0−1
3−4
low / 720p
5−6
35−40
medium / 1080p
3−4
14−16
The average gaming FPS of Radeon R9 M390 in Metro Exodus is 600% more, than GeForce 840M.
low / 768p
90−95
110−120
high / 1080p
85−90
−
ultra / 1080p
70−75
−
medium / 1080p
90−95
110−120
The average gaming FPS of Radeon R9 M390 in Minecraft is 25% more, than GeForce 840M.
high / 1080p
−
24−27
ultra / 1080p
12−14
18−20
low / 720p
27−30
65−70
medium / 1080p
14−16
27−30
The average gaming FPS of Radeon R9 M390 in PLAYERUNKNOWN'S BATTLEGROUNDS is 111% more, than GeForce 840M.
high / 1080p
−
14−16
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
0−1
low / 720p
6−7
30−35
medium / 1080p
−
18−20
The average gaming FPS of Radeon R9 M390 in Red Dead Redemption 2 is 320% more, than GeForce 840M.
low / 768p
12−14
65−70
medium / 768p
9−10
40−45
high / 1080p
4−5
21−24
ultra / 1080p
3−4
12−14
4K / 2160p
0−1
9−10
The average gaming FPS of Radeon R9 M390 in The Witcher 3: Wild Hunt is 414% more, than GeForce 840M.
low / 768p
75−80
100−110
medium / 768p
35−40
65−70
ultra / 1080p
16−18
35−40
high / 768p
30−35
55−60
The average gaming FPS of Radeon R9 M390 in World of Tanks is 60% more, than GeForce 840M.
Full Specs
GeForce 840M
Radeon R9 M390
Architecture
Maxwell
GCN
Code name
N15S-GT
Pitcairn
Type
Laptop
Laptop
Release date
12 March 2014
9 June 2015
Pipelines
384
1024
Core clock speed
1029 MHz
Boost Clock
1124 MHz
Transistor count
5000 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
Floating-point performance
863.2 gflops
Memory bus width
64 Bit
256 Bit
Memory clock speed
2000 MHz
Memory bandwidth
16.02 GB/s
Shared memory
-
-
DirectX
12 (11_0)
Shader Model
5.1
OpenGL
4.5
4.4
OpenCL
1.2
Not Listed
Vulkan
1.1.126
CUDA
+
FreeSync
+
Bus support
PCI Express 2.0, PCI Express 3.0
PCIe 3.0
Bitcoin / BTC (SHA256)
92 Mh/s
242 Mh/s
Laptop size
medium sized
large
Optimus
+
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
GPU Boost
2.0
GameWorks
+
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