GeForce 840M vs GeForce 940M
If you are going to buy a new graphics card and are choosing between GeForce 840M and GeForce 940M, 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 GeForce 840M stacks up against GeForce 940M, check out specs charts below.
GeForce 840M and GeForce 940M are Laptop Graphics Cards
Note: GeForce 840M and GeForce 940M 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 GeForce 940M here:
Main Specs
GeForce 840M
GeForce 940M
Power consumption (TDP)
33 Watt
75 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Memory type
DDR3
DDR3
Maximum RAM amount
4 GB
4 GB
Display Connectors
No outputs
No outputs
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GeForce 940M has 127% more power consumption, than GeForce 840M.
Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
GeForce 840M and GeForce 940M have maximum RAM of 4 GB.
Both cards are used in Laptops.
GeForce 840M and GeForce 940M are build with Maxwell architecture.
Core clock speed of GeForce 940M is 43 MHz higher, than GeForce 840M.
GeForce 840M and GeForce 940M are manufactured by 28 nm process technology.
Memory clock speed of GeForce 840M and GeForce 940M is 2000 MHz.
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
2−3
ultra / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
low / 720p
12−14
12−14
medium / 1080p
3−4
4−5
GeForce 840M and GeForce 940M have the same average FPS in Assassin's Creed Odyssey.
high / 1080p
−
6−7
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
16−18
16−18
medium / 1080p
5−6
6−7
GeForce 840M and GeForce 940M have the same average FPS in Battlefield 5.
low / 768p
45−50
50−55
high / 1080p
40−45
40−45
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce 940M in Call of Duty: Warzone is 4% more, than GeForce 840M.
low / 768p
120−130
120−130
medium / 768p
90−95
90−95
ultra / 1080p
40−45
40−45
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
18−20
high / 768p
65−70
65−70
GeForce 840M and GeForce 940M have the same average FPS in Counter-Strike: Global Offensive.
low / 768p
85−90
70−75
ultra / 1080p
16−18
18−20
medium / 1080p
40−45
45−50
The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 6% more, than GeForce 940M.
low / 768p
75−80
70−75
medium / 768p
50−55
50−55
ultra / 1080p
24−27
24−27
The average gaming FPS of GeForce 840M in Dota 2 is 2% more, than GeForce 940M.
high / 1080p
2−3
3−4
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
2−3
low / 720p
12−14
12−14
medium / 1080p
3−4
4−5
The average gaming FPS of GeForce 940M in Far Cry 5 is 20% more, than GeForce 840M.
high / 1080p
10−11
10−11
ultra / 1080p
5−6
5−6
QHD / 1440p
2−3
2−3
low / 720p
50−55
50−55
medium / 1080p
10−12
12−14
GeForce 840M and GeForce 940M have the same average FPS in Fortnite.
high / 1080p
4−5
7−8
ultra / 1080p
−
6−7
QHD / 1440p
0−1
2−3
low / 720p
16−18
20−22
medium / 1080p
7−8
9−10
The average gaming FPS of GeForce 940M in Forza Horizon 4 is 33% more, than GeForce 840M.
low / 768p
45−50
45−50
medium / 768p
−
35−40
high / 1080p
5−6
6−7
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of GeForce 940M in Grand Theft Auto V is 5% more, than GeForce 840M.
high / 1080p
1−2
1−2
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
5−6
6−7
medium / 1080p
3−4
3−4
GeForce 840M and GeForce 940M have the same average FPS in Metro Exodus.
low / 768p
90−95
90−95
high / 1080p
85−90
85−90
ultra / 1080p
70−75
75−80
medium / 1080p
90−95
90−95
The average gaming FPS of GeForce 940M in Minecraft is 1% more, than GeForce 840M.
high / 1080p
−
14−16
ultra / 1080p
12−14
12−14
low / 720p
27−30
24−27
medium / 1080p
14−16
16−18
GeForce 840M and GeForce 940M have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
4−5
4−5
QHD / 1440p
0−1
0−1
low / 720p
6−7
5−6
GeForce 840M and GeForce 940M have the same average FPS in Red Dead Redemption 2.
low / 768p
12−14
14−16
medium / 768p
9−10
10−11
high / 1080p
4−5
5−6
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
1−2
The average gaming FPS of GeForce 940M in The Witcher 3: Wild Hunt is 14% more, than GeForce 840M.
low / 768p
75−80
75−80
medium / 768p
35−40
40−45
ultra / 1080p
16−18
14−16
high / 768p
30−35
30−35
GeForce 840M and GeForce 940M have the same average FPS in World of Tanks.
Full Specs
GeForce 840M
GeForce 940M
Architecture
Maxwell
Maxwell
Code name
N15S-GT
N16S-GT-S/B
Type
Laptop
Laptop
Release date
12 March 2014
12 March 2015
Pipelines
384
384
Core clock speed
1029 MHz
1072 MHz
Boost Clock
1124 MHz
1176 MHz
Transistor count
1,870 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
28.22
Floating-point performance
863.2 gflops
903.2 gflops
Memory bus width
64 Bit
64 Bit
Memory clock speed
2000 MHz
2000 MHz
Memory bandwidth
16.02 GB/s
14.4 GB/s
Shared memory
-
-
DirectX
12 (11_0)
12 (11_0)
Shader Model
5.1
5.1
OpenGL
4.5
4.5
OpenCL
1.2
1.2
Vulkan
1.1.126
1.1.126
CUDA
+
+
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 3.0
Bitcoin / BTC (SHA256)
92 Mh/s
101 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
+
GPU Boost
2.0
2.0
GameWorks
+
+
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