GeForce GT 640M vs Radeon R6 M340DX
Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and Radeon R6 M340DX. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640M and Radeon R6 M340DX. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
GeForce GT 640M and Radeon R6 M340DX are Laptop Graphics Cards
Note: GeForce GT 640M and Radeon R6 M340DX 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 GT 640M or Radeon R6 M340DX here:
Main Specs
GeForce GT 640M
Radeon R6 M340DX
Power consumption (TDP)
32 Watt
Interface
PCIe 3.0 x16
IGP
Memory type
DDR3\GDDR5
DDR3
Maximum RAM amount
2 GB
Display Connectors
No outputs
No outputs
Check Price
Check Price
GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon R6 M340DX uses IGP interface.
Both cards are used in Laptops.
GeForce GT 640M is build with Kepler architecture, and Radeon R6 M340DX - with GCN.
GeForce GT 640M and Radeon R6 M340DX 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
2−3
ultra / 1080p
0−1
2−3
QHD / 1440p
0−1
0−1
low / 720p
10−12
10−11
medium / 1080p
2−3
3−4
The average gaming FPS of Radeon R6 M340DX in Assassin's Creed Odyssey is 16% more, than GeForce GT 640M.
ultra / 1080p
3−4
5−6
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
4−5
5−6
The average gaming FPS of Radeon R6 M340DX in Battlefield 5 is 14% more, than GeForce GT 640M.
low / 768p
50−55
45−50
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 640M in Call of Duty: Warzone is 6% more, than Radeon R6 M340DX.
low / 768p
110−120
90−95
medium / 768p
85−90
65−70
ultra / 1080p
35−40
30−35
QHD / 1440p
−
21−24
4K / 2160p
10−11
−
high / 768p
55−60
45−50
The average gaming FPS of GeForce GT 640M in Counter-Strike: Global Offensive is 23% more, than Radeon R6 M340DX.
low / 768p
70−75
55−60
ultra / 1080p
12−14
9−10
medium / 1080p
45−50
45−50
The average gaming FPS of GeForce GT 640M in Cyberpunk 2077 is 15% more, than Radeon R6 M340DX.
low / 768p
70−75
60−65
medium / 768p
40−45
35−40
ultra / 1080p
18−20
18−20
The average gaming FPS of GeForce GT 640M in Dota 2 is 12% more, than Radeon R6 M340DX.
high / 1080p
2−3
−
ultra / 1080p
2−3
4−5
4K / 2160p
0−1
2−3
low / 720p
9−10
9−10
medium / 1080p
3−4
4−5
The average gaming FPS of Radeon R6 M340DX in Far Cry 5 is 20% more, than GeForce GT 640M.
ultra / 1080p
5−6
7−8
QHD / 1440p
1−2
−
low / 720p
45−50
40−45
medium / 1080p
7−8
8−9
The average gaming FPS of GeForce GT 640M in Fortnite is 5% more, than Radeon R6 M340DX.
high / 1080p
2−3
6−7
QHD / 1440p
0−1
0−1
low / 720p
14−16
12−14
medium / 1080p
5−6
7−8
The average gaming FPS of Radeon R6 M340DX in Forza Horizon 4 is 28% more, than GeForce GT 640M.
low / 768p
40−45
35−40
medium / 768p
−
30−35
high / 1080p
3−4
4−5
ultra / 1080p
2−3
4−5
QHD / 1440p
0−1
0−1
medium / 720p
30−35
−
The average gaming FPS of GeForce GT 640M in Grand Theft Auto V is 6% more, than Radeon R6 M340DX.
high / 1080p
1−2
2−3
ultra / 1080p
0−1
1−2
4K / 2160p
0−1
0−1
low / 720p
2−3
4−5
medium / 1080p
2−3
4−5
The average gaming FPS of Radeon R6 M340DX in Metro Exodus is 50% more, than GeForce GT 640M.
low / 768p
85−90
85−90
high / 1080p
55−60
75−80
ultra / 1080p
−
65−70
The average gaming FPS of Radeon R6 M340DX in Minecraft is 13% more, than GeForce GT 640M.
high / 1080p
14−16
14−16
ultra / 1080p
12−14
12−14
low / 720p
24−27
20−22
medium / 1080p
14−16
16−18
The average gaming FPS of GeForce GT 640M in PLAYERUNKNOWN'S BATTLEGROUNDS is 6% more, than Radeon R6 M340DX.
ultra / 1080p
3−4
−
QHD / 1440p
0−1
0−1
low / 720p
3−4
4−5
The average gaming FPS of Radeon R6 M340DX in Red Dead Redemption 2 is 33% more, than GeForce GT 640M.
low / 768p
7−8
10−12
medium / 768p
6−7
9−10
high / 1080p
3−4
5−6
ultra / 1080p
−
4−5
4K / 2160p
0−1
−
The average gaming FPS of Radeon R6 M340DX in The Witcher 3: Wild Hunt is 60% more, than GeForce GT 640M.
low / 768p
70−75
75−80
medium / 768p
35−40
30−35
ultra / 1080p
12−14
10−12
high / 768p
27−30
24−27
The average gaming FPS of GeForce GT 640M in World of Tanks is 2% more, than Radeon R6 M340DX.
Full Specs
GeForce GT 640M
Radeon R6 M340DX
Architecture
Kepler
GCN
Code name
N13P-GS
Jet
Type
Laptop
Laptop
Release date
22 March 2012
3 June 2015
Pipelines
384
704
Boost Clock
645 MHz
1030 MHz
Transistor count
1,270 million
690 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
24.72
Floating-point performance
480.0 gflops
Memory bus width
128bit
Memory clock speed
1800 - 4000 MHz
Shared memory
-
-
DirectX
12 API
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.1
1.2
Vulkan
1.1.126
1.2.131
CUDA
+
CUDA cores
384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
18 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
Check Price
Check Price
