Radeon R6 M340DX vs Radeon R9 M390X
If you are going to buy a new graphics card and are choosing between Radeon R6 M340DX and Radeon R9 M390X, 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 R6 M340DX stacks up against Radeon R9 M390X, check out specs charts below.
Radeon R6 M340DX and Radeon R9 M390X are Laptop Graphics Cards
Note: Radeon R6 M340DX 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 R6 M340DX or Radeon R9 M390X here:
Main Specs
Radeon R6 M340DX
Radeon R9 M390X
Power consumption (TDP)
100 Watt
Interface
IGP
PCIe 3.0 x16
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
Display Connectors
No outputs
No outputs
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Radeon R6 M340DX is connected by IGP, and Radeon R9 M390X uses PCIe 3.0 x16 interface.
Both cards are used in Laptops.
Radeon R6 M340DX is build with GCN architecture, and Radeon R9 M390X - with GCN 3.
Radeon R6 M340DX 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
2−3
21−24
ultra / 1080p
2−3
12−14
QHD / 1440p
0−1
8−9
4K / 2160p
−
5−6
low / 720p
10−11
40−45
medium / 1080p
3−4
27−30
The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 550% more, than Radeon R6 M340DX.
high / 1080p
−
35−40
ultra / 1080p
5−6
30−35
QHD / 1440p
0−1
14−16
4K / 2160p
−
9−10
low / 720p
12−14
70−75
medium / 1080p
5−6
40−45
The average gaming FPS of Radeon R9 M390X in Battlefield 5 is 512% more, than Radeon R6 M340DX.
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 R6 M340DX.
low / 768p
90−95
230−240
medium / 768p
65−70
210−220
ultra / 1080p
30−35
120−130
QHD / 1440p
21−24
100−110
4K / 2160p
−
55−60
high / 768p
45−50
170−180
The average gaming FPS of Radeon R9 M390X in Counter-Strike: Global Offensive is 228% more, than Radeon R6 M340DX.
low / 768p
55−60
60−65
ultra / 1080p
9−10
55−60
medium / 1080p
45−50
55−60
The average gaming FPS of Radeon R9 M390X in Cyberpunk 2077 is 55% more, than Radeon R6 M340DX.
low / 768p
60−65
120−130
medium / 768p
35−40
110−120
ultra / 1080p
18−20
85−90
The average gaming FPS of Radeon R9 M390X in Dota 2 is 179% more, than Radeon R6 M340DX.
high / 1080p
−
27−30
ultra / 1080p
4−5
24−27
QHD / 1440p
−
20−22
4K / 2160p
2−3
9−10
low / 720p
9−10
55−60
medium / 1080p
4−5
30−33
The average gaming FPS of Radeon R9 M390X in Far Cry 5 is 520% more, than Radeon R6 M340DX.
high / 1080p
−
35−40
ultra / 1080p
7−8
27−30
QHD / 1440p
−
16−18
low / 720p
40−45
130−140
medium / 1080p
8−9
75−80
The average gaming FPS of Radeon R9 M390X in Fortnite is 321% more, than Radeon R6 M340DX.
high / 1080p
6−7
35−40
ultra / 1080p
−
27−30
QHD / 1440p
0−1
16−18
4K / 2160p
−
14−16
low / 720p
12−14
75−80
medium / 1080p
7−8
40−45
The average gaming FPS of Radeon R9 M390X in Forza Horizon 4 is 477% more, than Radeon R6 M340DX.
low / 768p
35−40
110−120
medium / 768p
30−35
95−100
high / 1080p
4−5
45−50
ultra / 1080p
4−5
18−20
QHD / 1440p
0−1
9−10
The average gaming FPS of Radeon R9 M390X in Grand Theft Auto V is 263% more, than Radeon R6 M340DX.
high / 1080p
2−3
14−16
ultra / 1080p
1−2
10−12
QHD / 1440p
−
10−12
4K / 2160p
0−1
3−4
low / 720p
4−5
40−45
medium / 1080p
4−5
20−22
The average gaming FPS of Radeon R9 M390X in Metro Exodus is 633% more, than Radeon R6 M340DX.
low / 768p
85−90
120−130
high / 1080p
75−80
−
ultra / 1080p
65−70
−
medium / 1080p
−
110−120
The average gaming FPS of Radeon R9 M390X in Minecraft is 43% more, than Radeon R6 M340DX.
high / 1080p
14−16
−
ultra / 1080p
12−14
14−16
low / 720p
20−22
75−80
medium / 1080p
16−18
18−20
The average gaming FPS of Radeon R9 M390X in PLAYERUNKNOWN'S BATTLEGROUNDS is 117% more, than Radeon R6 M340DX.
high / 1080p
−
16−18
ultra / 1080p
−
10−12
QHD / 1440p
0−1
3−4
4K / 2160p
−
2−3
low / 720p
4−5
40−45
medium / 1080p
−
21−24
The average gaming FPS of Radeon R9 M390X in Red Dead Redemption 2 is 950% more, than Radeon R6 M340DX.
low / 768p
10−12
80−85
medium / 768p
9−10
50−55
high / 1080p
5−6
27−30
ultra / 1080p
4−5
16−18
4K / 2160p
−
9−10
The average gaming FPS of Radeon R9 M390X in The Witcher 3: Wild Hunt is 542% more, than Radeon R6 M340DX.
low / 768p
75−80
90−95
medium / 768p
30−35
60−65
ultra / 1080p
10−12
40−45
high / 768p
24−27
55−60
The average gaming FPS of Radeon R9 M390X in World of Tanks is 75% more, than Radeon R6 M340DX.
Full Specs
Radeon R6 M340DX
Radeon R9 M390X
Architecture
GCN
GCN 3
Code name
Jet
Amethyst (XT) / Tonga
Type
Laptop
Laptop
Release date
3 June 2015
9 June 2015
Pipelines
704
2048
Core clock speed
723 MHz
Boost Clock
1030 MHz
Transistor count
690 million
5,000 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
24.72
92.54
Floating-point performance
2,961 gflops
Memory bus width
256 Bit
Memory bandwidth
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
Laptop size
medium sized
large
Eyefinity
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
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