GeForce 840M vs GeForce GTX 675MX
Find out if it is worth upgrading your current GPU setup by comparing GeForce 840M and GeForce GTX 675MX. 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 840M and GeForce GTX 675MX. 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 840M and GeForce GTX 675MX are Laptop Graphics Cards
Note: GeForce 840M and GeForce GTX 675MX 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 675MX here:
Main Specs
GeForce 840M
GeForce GTX 675MX
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
2 GB
Display Connectors
No outputs
No outputs
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GeForce GTX 675MX has 203% more power consumption, than GeForce 840M.
GeForce 840M is connected by PCIe 3.0 x8, and GeForce GTX 675MX uses MXM-B (3.0) interface.
GeForce 840M has 2 GB more memory, than GeForce GTX 675MX.
Both cards are used in Laptops.
GeForce 840M is build with Maxwell architecture, and GeForce GTX 675MX - with Kepler.
Core clock speed of GeForce 840M is 429 MHz higher, than GeForce GTX 675MX.
GeForce 840M and GeForce GTX 675MX are manufactured by 28 nm process technology.
Memory clock speed of GeForce 840M is 200 MHz higher, than GeForce GTX 675MX.
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
9−10
ultra / 1080p
0−1
5−6
QHD / 1440p
0−1
0−1
low / 720p
12−14
21−24
medium / 1080p
3−4
12−14
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 150% more, than GeForce 840M.
high / 1080p
−
16−18
ultra / 1080p
4−5
14−16
QHD / 1440p
0−1
0−1
low / 720p
16−18
30−35
medium / 1080p
5−6
16−18
The average gaming FPS of GeForce GTX 675MX in Battlefield 5 is 133% 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 675MX have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
160−170
medium / 768p
90−95
130−140
ultra / 1080p
40−45
70−75
QHD / 1440p
24−27
40−45
4K / 2160p
18−20
30−33
high / 768p
65−70
100−110
The average gaming FPS of GeForce GTX 675MX in Counter-Strike: Global Offensive is 46% more, than GeForce 840M.
low / 768p
85−90
55−60
ultra / 1080p
16−18
27−30
medium / 1080p
40−45
45−50
The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 11% more, than GeForce GTX 675MX.
low / 768p
75−80
90−95
medium / 768p
50−55
70−75
ultra / 1080p
24−27
45−50
The average gaming FPS of GeForce GTX 675MX in Dota 2 is 37% more, than GeForce 840M.
high / 1080p
2−3
10−12
ultra / 1080p
2−3
10−11
4K / 2160p
0−1
4−5
low / 720p
12−14
24−27
medium / 1080p
3−4
12−14
The average gaming FPS of GeForce GTX 675MX in Far Cry 5 is 200% more, than GeForce 840M.
high / 1080p
10−11
18−20
ultra / 1080p
5−6
12−14
QHD / 1440p
2−3
−
low / 720p
50−55
70−75
medium / 1080p
10−12
30−35
The average gaming FPS of GeForce GTX 675MX in Fortnite is 78% more, than GeForce 840M.
high / 1080p
4−5
16−18
ultra / 1080p
−
14−16
QHD / 1440p
0−1
4−5
low / 720p
16−18
35−40
medium / 1080p
7−8
18−20
The average gaming FPS of GeForce GTX 675MX in Forza Horizon 4 is 166% more, than GeForce 840M.
low / 768p
45−50
65−70
medium / 768p
−
55−60
high / 1080p
5−6
18−20
ultra / 1080p
2−3
8−9
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of GeForce GTX 675MX in Grand Theft Auto V is 72% more, than GeForce 840M.
high / 1080p
1−2
6−7
ultra / 1080p
0−1
4−5
4K / 2160p
0−1
1−2
low / 720p
5−6
18−20
medium / 1080p
3−4
8−9
The average gaming FPS of GeForce GTX 675MX in Metro Exodus is 266% more, than GeForce 840M.
low / 768p
90−95
100−110
high / 1080p
85−90
−
ultra / 1080p
70−75
90−95
medium / 1080p
90−95
95−100
The average gaming FPS of GeForce GTX 675MX in Minecraft is 15% more, than GeForce 840M.
high / 1080p
−
18−20
ultra / 1080p
12−14
14−16
low / 720p
27−30
40−45
medium / 1080p
14−16
20−22
The average gaming FPS of GeForce GTX 675MX in PLAYERUNKNOWN'S BATTLEGROUNDS is 44% more, than GeForce 840M.
high / 1080p
−
12−14
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
6−7
18−20
medium / 1080p
−
12−14
The average gaming FPS of GeForce GTX 675MX in Red Dead Redemption 2 is 160% more, than GeForce 840M.
low / 768p
12−14
35−40
medium / 768p
9−10
21−24
high / 1080p
4−5
12−14
ultra / 1080p
3−4
8−9
4K / 2160p
0−1
7−8
The average gaming FPS of GeForce GTX 675MX in The Witcher 3: Wild Hunt is 185% more, than GeForce 840M.
low / 768p
75−80
90−95
medium / 768p
35−40
50−55
ultra / 1080p
16−18
24−27
high / 768p
30−35
40−45
The average gaming FPS of GeForce GTX 675MX in World of Tanks is 29% more, than GeForce 840M.
Full Specs
GeForce 840M
GeForce GTX 675MX
Architecture
Maxwell
Kepler
Code name
N15S-GT
N13E-GSR
Type
Laptop
Laptop
Release date
12 March 2014
1 October 2012
Pipelines
384
960
Core clock speed
1029 MHz
600 MHz
Boost Clock
1124 MHz
Transistor count
3,540 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
48.0 billion/sec
Floating-point performance
863.2 gflops
1,256 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
960
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 2.0
SLI options
+
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
Bitcoin / BTC (SHA256)
92 Mh/s
63 Mh/s
Laptop size
medium sized
large
Optimus
+
+
GPU Boost
2.0
GameWorks
+
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