GeForce 840M vs Radeon HD 7770
When choosing between GeForce 840M and Radeon HD 7770, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 840M and Radeon HD 7770.
GeForce 840M is a Laptop Graphics Card
Note: GeForce 840M is only used in laptop graphics. It has 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 here:
Main Specs
GeForce 840M
Radeon HD 7770
Power consumption (TDP)
33 Watt
Interface
PCIe 3.0 x8
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
2 GB
Display Connectors
No outputs
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GeForce 840M has 2 GB more memory, than Radeon HD 7770.
GeForce 840M is used in Laptops, and Radeon HD 7770 - in Desktops.
GeForce 840M is build with Maxwell architecture, and Radeon HD 7770 - with GCN.
Core clock speed of GeForce 840M is 29 MHz higher, than Radeon HD 7770.
GeForce 840M and Radeon HD 7770 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7770 is 2500 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
10−11
ultra / 1080p
0−1
6−7
QHD / 1440p
0−1
1−2
low / 720p
12−14
24−27
medium / 1080p
3−4
12−14
The average gaming FPS of Radeon HD 7770 in Assassin's Creed Odyssey is 166% more, than GeForce 840M.
high / 1080p
−
16−18
ultra / 1080p
4−5
14−16
QHD / 1440p
0−1
1−2
low / 720p
16−18
35−40
medium / 1080p
5−6
18−20
The average gaming FPS of Radeon HD 7770 in Battlefield 5 is 155% more, than GeForce 840M.
low / 768p
45−50
45−50
high / 1080p
40−45
−
QHD / 1440p
0−1
0−1
GeForce 840M and Radeon HD 7770 have the same average FPS in Call of Duty: Warzone.
low / 768p
120−130
170−180
medium / 768p
90−95
140−150
ultra / 1080p
40−45
75−80
QHD / 1440p
24−27
40−45
4K / 2160p
18−20
30−33
high / 768p
65−70
110−120
The average gaming FPS of Radeon HD 7770 in Counter-Strike: Global Offensive is 56% 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 Radeon HD 7770.
low / 768p
75−80
95−100
medium / 768p
50−55
75−80
ultra / 1080p
24−27
45−50
The average gaming FPS of Radeon HD 7770 in Dota 2 is 45% more, than GeForce 840M.
high / 1080p
2−3
12−14
ultra / 1080p
2−3
10−12
4K / 2160p
0−1
5−6
low / 720p
12−14
27−30
medium / 1080p
3−4
12−14
The average gaming FPS of Radeon HD 7770 in Far Cry 5 is 220% more, than GeForce 840M.
high / 1080p
10−11
18−20
ultra / 1080p
5−6
14−16
QHD / 1440p
2−3
−
low / 720p
50−55
80−85
medium / 1080p
10−12
35−40
The average gaming FPS of Radeon HD 7770 in Fortnite is 100% more, than GeForce 840M.
high / 1080p
4−5
18−20
ultra / 1080p
−
14−16
QHD / 1440p
0−1
5−6
low / 720p
16−18
35−40
medium / 1080p
7−8
21−24
The average gaming FPS of Radeon HD 7770 in Forza Horizon 4 is 188% more, than GeForce 840M.
low / 768p
45−50
65−70
medium / 768p
−
60−65
high / 1080p
5−6
21−24
ultra / 1080p
2−3
9−10
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Radeon HD 7770 in Grand Theft Auto V is 83% more, than GeForce 840M.
high / 1080p
1−2
7−8
ultra / 1080p
0−1
5−6
4K / 2160p
0−1
1−2
low / 720p
5−6
20−22
medium / 1080p
3−4
9−10
The average gaming FPS of Radeon HD 7770 in Metro Exodus is 300% more, than GeForce 840M.
low / 768p
90−95
100−110
high / 1080p
85−90
−
ultra / 1080p
70−75
90−95
medium / 1080p
90−95
100−105
The average gaming FPS of Radeon HD 7770 in Minecraft is 17% more, than GeForce 840M.
high / 1080p
−
18−20
ultra / 1080p
12−14
16−18
low / 720p
27−30
45−50
medium / 1080p
14−16
21−24
The average gaming FPS of Radeon HD 7770 in PLAYERUNKNOWN'S BATTLEGROUNDS is 61% more, than GeForce 840M.
high / 1080p
−
12−14
ultra / 1080p
4−5
8−9
QHD / 1440p
0−1
0−1
low / 720p
6−7
20−22
medium / 1080p
−
12−14
The average gaming FPS of Radeon HD 7770 in Red Dead Redemption 2 is 180% more, than GeForce 840M.
low / 768p
12−14
35−40
medium / 768p
9−10
24−27
high / 1080p
4−5
14−16
ultra / 1080p
3−4
8−9
4K / 2160p
0−1
7−8
The average gaming FPS of Radeon HD 7770 in The Witcher 3: Wild Hunt is 200% more, than GeForce 840M.
low / 768p
75−80
95−100
medium / 768p
35−40
55−60
ultra / 1080p
16−18
27−30
high / 768p
30−35
45−50
The average gaming FPS of Radeon HD 7770 in World of Tanks is 39% more, than GeForce 840M.
Full Specs
GeForce 840M
Radeon HD 7770
Architecture
Maxwell
GCN
Code name
N15S-GT
Cape Verde
Type
Laptop
Desktop
Release date
12 March 2014
15 February 2012
Pipelines
384
640
Core clock speed
1029 MHz
1000 MHz
Boost Clock
1124 MHz
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
Floating-point performance
863.2 gflops
Memory bus width
64 Bit
128 Bit
Memory clock speed
2000 MHz
4500 MHz
Memory bandwidth
16.02 GB/s
Shared memory
-
-
DirectX
12 (11_0)
DirectX 11.1, Shader 5.1
Shader Model
5.1
OpenGL
4.5
OpenCL
1.2
Vulkan
1.1.126
CUDA
+
Bus support
PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256)
92 Mh/s
156 Mh/s
Laptop size
medium sized
Optimus
+
Eyefinity
+
GPU Boost
2.0
GameWorks
+
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