GeForce 840M vs GeForce GT 755M
When comparing GeForce 840M and GeForce GT 755M, 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 GeForce GT 755M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840M and GeForce GT 755M are Laptop Graphics Cards
Note: GeForce 840M and GeForce GT 755M 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 GT 755M here:
Main Specs
GeForce 840M
GeForce GT 755M
Power consumption (TDP)
33 Watt
50 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
4 GB
Display Connectors
No outputs
No outputs
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GeForce GT 755M has 51% more power consumption, than GeForce 840M.
GeForce 840M is connected by PCIe 3.0 x8, and GeForce GT 755M uses PCIe 3.0 x16 interface.
GeForce 840M and GeForce GT 755M have maximum RAM of 4 GB.
Both cards are used in Laptops.
GeForce 840M is build with Maxwell architecture, and GeForce GT 755M - with Kepler.
Core clock speed of GeForce 840M is 49 MHz higher, than GeForce GT 755M.
GeForce 840M and GeForce GT 755M are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 755M is 3400 MHz higher, than GeForce 840M.
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
7−8
ultra / 1080p
0−1
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
18−20
medium / 1080p
3−4
9−10
The average gaming FPS of GeForce GT 755M in Assassin's Creed Odyssey is 100% more, than GeForce 840M.
high / 1080p
−
12−14
ultra / 1080p
4−5
10−12
QHD / 1440p
0−1
0−1
low / 720p
16−18
27−30
medium / 1080p
5−6
14−16
The average gaming FPS of GeForce GT 755M in Battlefield 5 is 100% more, than GeForce 840M.
low / 768p
45−50
45−50
high / 1080p
40−45
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GT 755M in Call of Duty: Warzone is 4% more, than GeForce 840M.
low / 768p
120−130
140−150
medium / 768p
90−95
110−120
ultra / 1080p
40−45
55−60
QHD / 1440p
24−27
30−35
4K / 2160p
18−20
27−30
high / 768p
65−70
85−90
The average gaming FPS of GeForce GT 755M in Counter-Strike: Global Offensive is 24% more, than GeForce 840M.
low / 768p
85−90
55−60
ultra / 1080p
16−18
21−24
medium / 1080p
40−45
45−50
The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 16% more, than GeForce GT 755M.
low / 768p
75−80
85−90
medium / 768p
50−55
60−65
ultra / 1080p
24−27
35−40
The average gaming FPS of GeForce GT 755M in Dota 2 is 21% more, than GeForce 840M.
high / 1080p
2−3
9−10
ultra / 1080p
2−3
8−9
4K / 2160p
0−1
4−5
low / 720p
12−14
21−24
medium / 1080p
3−4
10−11
The average gaming FPS of GeForce GT 755M in Far Cry 5 is 140% more, than GeForce 840M.
high / 1080p
10−11
16−18
ultra / 1080p
5−6
10−12
QHD / 1440p
2−3
−
low / 720p
50−55
65−70
medium / 1080p
10−12
24−27
The average gaming FPS of GeForce GT 755M in Fortnite is 57% more, than GeForce 840M.
high / 1080p
4−5
12−14
ultra / 1080p
−
12−14
QHD / 1440p
0−1
2−3
low / 720p
16−18
27−30
medium / 1080p
7−8
14−16
The average gaming FPS of GeForce GT 755M in Forza Horizon 4 is 100% more, than GeForce 840M.
low / 768p
45−50
55−60
medium / 768p
−
50−55
high / 1080p
5−6
14−16
ultra / 1080p
2−3
7−8
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of GeForce GT 755M in Grand Theft Auto V is 44% more, than GeForce 840M.
high / 1080p
1−2
5−6
ultra / 1080p
0−1
3−4
4K / 2160p
0−1
0−1
low / 720p
5−6
14−16
medium / 1080p
3−4
7−8
The average gaming FPS of GeForce GT 755M in Metro Exodus is 200% more, than GeForce 840M.
low / 768p
90−95
95−100
high / 1080p
85−90
90−95
ultra / 1080p
70−75
80−85
medium / 1080p
90−95
95−100
The average gaming FPS of GeForce GT 755M in Minecraft is 6% more, than GeForce 840M.
high / 1080p
−
16−18
ultra / 1080p
12−14
14−16
low / 720p
27−30
35−40
medium / 1080p
14−16
18−20
The average gaming FPS of GeForce GT 755M in PLAYERUNKNOWN'S BATTLEGROUNDS is 27% more, than GeForce 840M.
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
6−7
14−16
medium / 1080p
−
10−12
The average gaming FPS of GeForce GT 755M in Red Dead Redemption 2 is 120% more, than GeForce 840M.
low / 768p
12−14
27−30
medium / 768p
9−10
18−20
high / 1080p
4−5
10−11
ultra / 1080p
3−4
7−8
4K / 2160p
0−1
6−7
The average gaming FPS of GeForce GT 755M in The Witcher 3: Wild Hunt is 128% more, than GeForce 840M.
low / 768p
75−80
85−90
medium / 768p
35−40
45−50
ultra / 1080p
16−18
21−24
high / 768p
30−35
35−40
The average gaming FPS of GeForce GT 755M in World of Tanks is 17% more, than GeForce 840M.
Full Specs
GeForce 840M
GeForce GT 755M
Architecture
Maxwell
Kepler
Code name
N15S-GT
N14P-
Type
Laptop
Laptop
Release date
12 March 2014
25 June 2013
Pipelines
384
384
Core clock speed
1029 MHz
980 MHz
Boost Clock
1124 MHz
Transistor count
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
31.36
Floating-point performance
863.2 gflops
752.6 gflops
Memory bus width
64 Bit
128 Bit
Memory clock speed
2000 MHz
5400 MHz
Memory bandwidth
16.02 GB/s
86.4 GB/s
Shared memory
-
-
DirectX
12 (11_0)
12 API
Shader Model
5.1
5.1
OpenGL
4.5
4.5
OpenCL
1.2
1.1
Vulkan
1.1.126
1.1.126
CUDA
+
+
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 3.0, PCI Express 2.0
HDMI
+
Bitcoin / BTC (SHA256)
92 Mh/s
27 Mh/s
Laptop size
medium sized
medium sized
Standard memory configuration
GDDR5
eDP 1.2 signal support
Up to 3840x2160
LVDS signal support
Up to 1920x1200
DisplayPort Multimode (DP++) support
Up to 3840x2160
HDCP content protection
+
7.1 channel HD audio on HDMI
+
TrueHD and DTS-HD audio bitstreaming
+
H.264, VC1, MPEG2 1080p video decoder
+
Optimus
+
+
Blu-Ray 3D Support
+
3D Vision / 3DTV Play
+
GPU Boost
2.0
GameWorks
+
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