GeForce 940MX vs GeForce GTX 870M
In this comparison between GeForce 940MX and GeForce GTX 870M 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 940MX will be the best choice, for others GeForce GTX 870M will be their preference. Study the comparison tables below and make your choice.
GeForce 940MX and GeForce GTX 870M are Laptop Graphics Cards
Note: GeForce 940MX and GeForce GTX 870M 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 940MX or GeForce GTX 870M here:
Main Specs
GeForce 940MX
GeForce GTX 870M
Power consumption (TDP)
23 Watt
100 Watt
Interface
PCIe 3.0 x8
MXM-B (3.0)
Supplementary power connectors
None
None
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
4 GB
6 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 870M has 334% more power consumption, than GeForce 940MX.
GeForce 940MX is connected by PCIe 3.0 x8, and GeForce GTX 870M uses MXM-B (3.0) interface.
GeForce GTX 870M has 2 GB more memory, than GeForce 940MX.
Both cards are used in Laptops.
GeForce 940MX is build with Maxwell architecture, and GeForce GTX 870M - with Kepler.
Core clock speed of GeForce 940MX is 181 MHz higher, than GeForce GTX 870M.
GeForce 940MX and GeForce GTX 870M 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
7−8
16−18
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
4−5
low / 720p
16−18
35−40
medium / 1080p
8−9
21−24
The average gaming FPS of GeForce GTX 870M in Assassin's Creed Odyssey is 133% more, than GeForce 940MX.
high / 1080p
12−14
27−30
ultra / 1080p
10−11
24−27
QHD / 1440p
0−1
7−8
4K / 2160p
−
6−7
low / 720p
24−27
60−65
medium / 1080p
12−14
30−35
The average gaming FPS of GeForce GTX 870M in Battlefield 5 is 146% more, than GeForce 940MX.
low / 768p
45−50
50−55
high / 1080p
45−50
50−55
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce GTX 870M in Call of Duty: Warzone is 10% more, than GeForce 940MX.
low / 768p
140−150
220−230
medium / 768p
110−120
190−200
ultra / 1080p
55−60
100−110
QHD / 1440p
30−33
65−70
4K / 2160p
27−30
35−40
high / 768p
80−85
150−160
The average gaming FPS of GeForce GTX 870M in Counter-Strike: Global Offensive is 71% more, than GeForce 940MX.
low / 768p
55−60
60−65
ultra / 1080p
20−22
45−50
medium / 1080p
45−50
55−60
The average gaming FPS of GeForce GTX 870M in Cyberpunk 2077 is 30% more, than GeForce 940MX.
low / 768p
80−85
110−120
medium / 768p
60−65
100−110
ultra / 1080p
35−40
70−75
The average gaming FPS of GeForce GTX 870M in Dota 2 is 61% more, than GeForce 940MX.
high / 1080p
8−9
21−24
ultra / 1080p
8−9
18−20
QHD / 1440p
−
18−20
4K / 2160p
3−4
6−7
low / 720p
18−20
45−50
medium / 1080p
9−10
21−24
The average gaming FPS of GeForce GTX 870M in Far Cry 5 is 155% more, than GeForce 940MX.
high / 1080p
14−16
27−30
ultra / 1080p
10−11
21−24
QHD / 1440p
−
14−16
low / 720p
60−65
110−120
medium / 1080p
24−27
60−65
The average gaming FPS of GeForce GTX 870M in Fortnite is 103% more, than GeForce 940MX.
high / 1080p
12−14
30−33
ultra / 1080p
10−12
21−24
QHD / 1440p
1−2
10−12
low / 720p
27−30
60−65
medium / 1080p
14−16
30−35
The average gaming FPS of GeForce GTX 870M in Forza Horizon 4 is 146% more, than GeForce 940MX.
low / 768p
50−55
95−100
medium / 768p
45−50
85−90
high / 1080p
12−14
35−40
ultra / 1080p
6−7
14−16
QHD / 1440p
0−1
4−5
The average gaming FPS of GeForce GTX 870M in Grand Theft Auto V is 103% more, than GeForce 940MX.
high / 1080p
5−6
10−12
ultra / 1080p
3−4
8−9
4K / 2160p
0−1
2−3
low / 720p
12−14
35−40
medium / 1080p
6−7
14−16
The average gaming FPS of GeForce GTX 870M in Metro Exodus is 157% more, than GeForce 940MX.
low / 768p
95−100
110−120
high / 1080p
90−95
−
ultra / 1080p
80−85
−
medium / 1080p
90−95
110−120
The average gaming FPS of GeForce GTX 870M in Minecraft is 21% more, than GeForce 940MX.
high / 1080p
16−18
−
ultra / 1080p
14−16
14−16
low / 720p
30−35
65−70
medium / 1080p
18−20
18−20
The average gaming FPS of GeForce GTX 870M in PLAYERUNKNOWN'S BATTLEGROUNDS is 50% more, than GeForce 940MX.
high / 1080p
−
14−16
ultra / 1080p
7−8
9−10
QHD / 1440p
0−1
0−1
low / 720p
12−14
30−35
medium / 1080p
10−12
18−20
The average gaming FPS of GeForce GTX 870M in Red Dead Redemption 2 is 100% more, than GeForce 940MX.
low / 768p
24−27
65−70
medium / 768p
16−18
40−45
high / 1080p
9−10
21−24
ultra / 1080p
6−7
12−14
4K / 2160p
6−7
7−8
The average gaming FPS of GeForce GTX 870M in The Witcher 3: Wild Hunt is 130% more, than GeForce 940MX.
low / 768p
85−90
90−95
medium / 768p
45−50
60−65
ultra / 1080p
20−22
35−40
high / 768p
35−40
55−60
The average gaming FPS of GeForce GTX 870M in World of Tanks is 29% more, than GeForce 940MX.
Full Specs
GeForce 940MX
GeForce GTX 870M
Architecture
Maxwell
Kepler
Code name
N16S-GTR-B/S
N15P-GT
Type
Laptop
Laptop
Release date
10 March 2016
12 March 2014
Pipelines
384
1344
Core clock speed
1122 MHz
941 MHz
Boost Clock
1242 MHz
967 MHz
Transistor count
1,870 million
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
23.83
108.3
Floating-point performance
762.6 gflops
2,599 gflops
Memory bus width
64 Bit
192 Bit
Memory clock speed
4000 MHz
Memory bandwidth
40.1 GB/s
120.0 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
1.1
Vulkan
1.1
1.1.126
CUDA
+
+
CUDA cores
1344
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
SLI options
+
HDMI
+
Bitcoin / BTC (SHA256)
102 Mh/s
82 Mh/s
Laptop size
medium sized
large
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
+
+
GPU Boost
2.0
GameWorks
+
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