Radeon R7 M340 vs Radeon R9 M390X
In this comparison between Radeon R7 M340 and Radeon R9 M390X you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon R7 M340 will be the best choice, for others Radeon R9 M390X will be their preference. Study the comparison tables below and make your choice.
Radeon R7 M340 and Radeon R9 M390X are Laptop Graphics Cards
Note: Radeon R7 M340 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 R7 M340 or Radeon R9 M390X here:
Main Specs
Radeon R7 M340
Radeon R9 M390X
Power consumption (TDP)
100 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
None
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
4 GB
Display Connectors
No outputs
No outputs
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Radeon R7 M340 is connected by PCIe 3.0 x8, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
Radeon R7 M340 and Radeon R9 M390X have maximum RAM of 4 GB.
Both cards are used in Laptops.
Radeon R7 M340 is build with GCN architecture, and Radeon R9 M390X - with GCN 3.
Core clock speed of Radeon R7 M340 is 298 MHz higher, than Radeon R9 M390X.
Radeon R7 M340 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
0−1
21−24
ultra / 1080p
−
12−14
QHD / 1440p
0−1
8−9
4K / 2160p
−
5−6
low / 720p
1−2
40−45
medium / 1080p
0−1
27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 4100% more, than Radeon R7 M340.
high / 1080p
−
35−40
ultra / 1080p
−
30−35
QHD / 1440p
0−1
14−16
4K / 2160p
−
9−10
low / 720p
0−1
70−75
medium / 1080p
−
40−45
low / 768p
50−55
50−55
high / 1080p
45−50
−
QHD / 1440p
0−1
0−1
Radeon R7 M340 and Radeon R9 M390X have the same average FPS in Call of Duty: Warzone.
low / 768p
60−65
230−240
medium / 768p
27−30
210−220
ultra / 1080p
7−8
120−130
QHD / 1440p
−
100−110
4K / 2160p
−
55−60
high / 768p
16−18
170−180
The average gaming FPS of Radeon R9 M390X in Counter-Strike: Global Offensive is 567% more, than Radeon R7 M340.
low / 768p
70−75
60−65
ultra / 1080p
0−1
55−60
medium / 1080p
45−50
55−60
Radeon R7 M340 and Radeon R9 M390X have the same average FPS in Cyberpunk 2077.
low / 768p
45−50
120−130
medium / 768p
10−11
110−120
ultra / 1080p
0−1
85−90
The average gaming FPS of Radeon R9 M390X in Dota 2 is 313% more, than Radeon R7 M340.
high / 1080p
−
27−30
ultra / 1080p
−
24−27
QHD / 1440p
−
20−22
4K / 2160p
−
9−10
low / 720p
0−1
55−60
medium / 1080p
−
30−33
high / 1080p
−
35−40
ultra / 1080p
−
27−30
QHD / 1440p
−
16−18
low / 720p
21−24
130−140
medium / 1080p
0−1
75−80
The average gaming FPS of Radeon R9 M390X in Fortnite is 513% more, than Radeon R7 M340.
high / 1080p
0−1
35−40
ultra / 1080p
−
27−30
QHD / 1440p
0−1
16−18
4K / 2160p
−
14−16
low / 720p
0−1
75−80
medium / 1080p
0−1
40−45
low / 768p
18−20
110−120
medium / 768p
−
95−100
high / 1080p
0−1
45−50
ultra / 1080p
−
18−20
QHD / 1440p
0−1
9−10
medium / 720p
12−14
−
The average gaming FPS of Radeon R9 M390X in Grand Theft Auto V is 505% more, than Radeon R7 M340.
high / 1080p
−
14−16
ultra / 1080p
−
10−12
QHD / 1440p
−
10−12
4K / 2160p
−
3−4
low / 720p
0−1
40−45
medium / 1080p
−
20−22
low / 768p
75−80
120−130
high / 1080p
27−30
−
medium / 1080p
−
110−120
The average gaming FPS of Radeon R9 M390X in Minecraft is 62% more, than Radeon R7 M340.
ultra / 1080p
−
14−16
low / 720p
8−9
75−80
medium / 1080p
−
18−20
The average gaming FPS of Radeon R9 M390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 862% more, than Radeon R7 M340.
high / 1080p
−
16−18
ultra / 1080p
−
10−12
QHD / 1440p
−
3−4
4K / 2160p
−
2−3
low / 720p
0−1
40−45
medium / 1080p
−
21−24
low / 768p
0−1
80−85
medium / 768p
−
50−55
high / 1080p
−
27−30
ultra / 1080p
−
16−18
4K / 2160p
−
9−10
low / 768p
45−50
90−95
medium / 768p
14−16
60−65
ultra / 1080p
0−1
40−45
high / 768p
12−14
55−60
The average gaming FPS of Radeon R9 M390X in World of Tanks is 180% more, than Radeon R7 M340.
Full Specs
Radeon R7 M340
Radeon R9 M390X
Architecture
GCN
GCN 3
Code name
Meso Pro DDR3
Amethyst (XT) / Tonga
Type
Laptop
Laptop
Release date
16 June 2015
9 June 2015
Pipelines
320
2048
Core clock speed
1021 MHz
723 MHz
Boost Clock
1021 MHz
Transistor count
950 million
5,000 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.16
92.54
Floating-point performance
549.1 gflops
2,961 gflops
Memory bus width
128 Bit
256 Bit
Memory clock speed
1000 MHz
Memory bandwidth
16 GB/s
160.0 GB/s
Shared memory
-
-
Shader Model
5.1
6.3
OpenGL
4.4
4.4
OpenCL
Not Listed
Not Listed
Vulkan
+
+
FreeSync
+
+
Bus support
PCIe 3.0
PCIe 3.0
Bitcoin / BTC (SHA256)
74 Mh/s
Laptop size
large
Eyefinity
+
+
HD3D
+
+
PowerTune
+
+
DualGraphics
+
+
ZeroCore
+
+
Switchable graphics
+
+
Mantle
+
+
Compute units
6
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