GeForce 840M vs GeForce GTX 680M
In this comparison between GeForce 840M and GeForce GTX 680M 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 GeForce 840M will be the best choice, for others GeForce GTX 680M will be their preference. Study the comparison tables below and make your choice.
GeForce 840M and GeForce GTX 680M are Laptop Graphics Cards
Note: GeForce 840M and GeForce GTX 680M 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 GTX 680M here:
Main Specs
GeForce 840M
GeForce GTX 680M
Power consumption (TDP)
33 Watt
100 Watt
Interface
PCIe 3.0 x8
MXM-B (3.0)
Supplementary power connectors
None
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
4 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 680M has 203% more power consumption, than GeForce 840M.
GeForce 840M is connected by PCIe 3.0 x8, and GeForce GTX 680M uses MXM-B (3.0) interface.
GeForce 840M and GeForce GTX 680M have maximum RAM of 4 GB.
Both cards are used in Laptops.
GeForce 840M is build with Maxwell architecture, and GeForce GTX 680M - with Kepler.
Core clock speed of GeForce 840M is 309 MHz higher, than GeForce GTX 680M.
GeForce 840M and GeForce GTX 680M are manufactured by 28 nm process technology.
Memory clock speed of GeForce 840M is 200 MHz higher, than GeForce GTX 680M.
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
16−18
ultra / 1080p
0−1
9−10
QHD / 1440p
0−1
4−5
4K / 2160p
−
4−5
low / 720p
12−14
30−35
medium / 1080p
3−4
20−22
The average gaming FPS of GeForce GTX 680M in Assassin's Creed Odyssey is 283% more, than GeForce 840M.
high / 1080p
−
24−27
ultra / 1080p
4−5
21−24
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
16−18
55−60
medium / 1080p
5−6
27−30
The average gaming FPS of GeForce GTX 680M in Battlefield 5 is 300% more, than GeForce 840M.
low / 768p
45−50
45−50
high / 1080p
40−45
−
QHD / 1440p
0−1
0−1
GeForce 840M and GeForce GTX 680M have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
210−220
medium / 768p
90−95
180−190
ultra / 1080p
40−45
100−110
QHD / 1440p
24−27
55−60
4K / 2160p
18−20
30−35
high / 768p
65−70
140−150
The average gaming FPS of GeForce GTX 680M in Counter-Strike: Global Offensive is 98% more, than GeForce 840M.
low / 768p
85−90
55−60
ultra / 1080p
16−18
40−45
medium / 1080p
40−45
45−50
GeForce 840M and GeForce GTX 680M have the same average FPS in Cyberpunk 2077.
low / 768p
75−80
110−120
medium / 768p
50−55
95−100
ultra / 1080p
24−27
65−70
The average gaming FPS of GeForce GTX 680M in Dota 2 is 82% more, than GeForce 840M.
high / 1080p
2−3
18−20
ultra / 1080p
2−3
18−20
QHD / 1440p
−
16−18
4K / 2160p
0−1
6−7
low / 720p
12−14
40−45
medium / 1080p
3−4
21−24
The average gaming FPS of GeForce GTX 680M in Far Cry 5 is 400% more, than GeForce 840M.
high / 1080p
10−11
27−30
ultra / 1080p
5−6
21−24
QHD / 1440p
2−3
16−18
low / 720p
50−55
100−110
medium / 1080p
10−12
55−60
The average gaming FPS of GeForce GTX 680M in Fortnite is 187% more, than GeForce 840M.
high / 1080p
4−5
27−30
ultra / 1080p
−
21−24
QHD / 1440p
0−1
10−11
4K / 2160p
−
10−11
low / 720p
16−18
55−60
medium / 1080p
7−8
30−35
The average gaming FPS of GeForce GTX 680M in Forza Horizon 4 is 333% more, than GeForce 840M.
low / 768p
45−50
90−95
medium / 768p
−
80−85
high / 1080p
5−6
30−35
ultra / 1080p
2−3
12−14
QHD / 1440p
0−1
4−5
medium / 720p
35−40
−
The average gaming FPS of GeForce GTX 680M in Grand Theft Auto V is 155% more, than GeForce 840M.
high / 1080p
1−2
10−11
ultra / 1080p
0−1
8−9
4K / 2160p
0−1
3−4
low / 720p
5−6
30−35
medium / 1080p
3−4
14−16
The average gaming FPS of GeForce GTX 680M in Metro Exodus is 533% more, than GeForce 840M.
low / 768p
90−95
110−120
high / 1080p
85−90
−
ultra / 1080p
70−75
−
medium / 1080p
90−95
100−110
The average gaming FPS of GeForce GTX 680M in Minecraft is 19% more, than GeForce 840M.
high / 1080p
−
24−27
ultra / 1080p
12−14
18−20
low / 720p
27−30
60−65
medium / 1080p
14−16
24−27
The average gaming FPS of GeForce GTX 680M in PLAYERUNKNOWN'S BATTLEGROUNDS is 94% more, than GeForce 840M.
high / 1080p
−
14−16
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
0−1
low / 720p
6−7
30−35
medium / 1080p
−
16−18
The average gaming FPS of GeForce GTX 680M in Red Dead Redemption 2 is 320% more, than GeForce 840M.
low / 768p
12−14
60−65
medium / 768p
9−10
35−40
high / 1080p
4−5
20−22
ultra / 1080p
3−4
12−14
4K / 2160p
0−1
8−9
The average gaming FPS of GeForce GTX 680M in The Witcher 3: Wild Hunt is 371% more, than GeForce 840M.
low / 768p
75−80
100−110
medium / 768p
35−40
60−65
ultra / 1080p
16−18
35−40
high / 768p
30−35
55−60
The average gaming FPS of GeForce GTX 680M in World of Tanks is 58% more, than GeForce 840M.
Full Specs
GeForce 840M
GeForce GTX 680M
Architecture
Maxwell
Kepler
Code name
N15S-GT
N13E-GTX
Type
Laptop
Laptop
Release date
12 March 2014
4 June 2012
Pipelines
384
1344
Core clock speed
1029 MHz
720 MHz
Boost Clock
1124 MHz
758 MHz
Transistor count
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
80.6 billion/sec
Floating-point performance
863.2 gflops
2,038 gflops
Memory bus width
64 Bit
256 Bit
Memory clock speed
2000 MHz
1800 MHz
Memory bandwidth
16.02 GB/s
115.2 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
+
+
CUDA cores
1344
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 3.0
SLI options
+
Bitcoin / BTC (SHA256)
92 Mh/s
100 Mh/s
Laptop size
medium sized
large
Optimus
+
+
GPU Boost
2.0
GameWorks
+
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