GeForce 840M vs Radeon HD 8770M
When comparing GeForce 840M and Radeon HD 8770M, 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 Radeon HD 8770M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840M and Radeon HD 8770M are Laptop Graphics Cards
Note: GeForce 840M and Radeon HD 8770M 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 Radeon HD 8770M here:
Main Specs
GeForce 840M
Radeon HD 8770M
Power consumption (TDP)
33 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
2 GB
Display Connectors
No outputs
No outputs
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Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
GeForce 840M has 2 GB more memory, than Radeon HD 8770M.
Both cards are used in Laptops.
GeForce 840M is build with Maxwell architecture, and Radeon HD 8770M - with GCN.
Core clock speed of GeForce 840M is 254 MHz higher, than Radeon HD 8770M.
GeForce 840M and Radeon HD 8770M are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 8770M 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
7−8
ultra / 1080p
0−1
4−5
QHD / 1440p
0−1
0−1
low / 720p
12−14
16−18
medium / 1080p
3−4
8−9
The average gaming FPS of Radeon HD 8770M in Assassin's Creed Odyssey is 83% more, than GeForce 840M.
high / 1080p
−
12−14
ultra / 1080p
4−5
10−11
QHD / 1440p
0−1
0−1
low / 720p
16−18
24−27
medium / 1080p
5−6
12−14
The average gaming FPS of Radeon HD 8770M in Battlefield 5 is 77% 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 Radeon HD 8770M 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
30−33
4K / 2160p
18−20
27−30
high / 768p
65−70
80−85
The average gaming FPS of Radeon HD 8770M in Counter-Strike: Global Offensive is 22% more, than GeForce 840M.
low / 768p
85−90
55−60
ultra / 1080p
16−18
20−22
medium / 1080p
40−45
45−50
The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 16% more, than Radeon HD 8770M.
low / 768p
75−80
80−85
medium / 768p
50−55
60−65
ultra / 1080p
24−27
35−40
The average gaming FPS of Radeon HD 8770M in Dota 2 is 17% more, than GeForce 840M.
high / 1080p
2−3
8−9
ultra / 1080p
2−3
8−9
4K / 2160p
0−1
3−4
low / 720p
12−14
18−20
medium / 1080p
3−4
9−10
The average gaming FPS of Radeon HD 8770M in Far Cry 5 is 120% more, than GeForce 840M.
high / 1080p
10−11
14−16
ultra / 1080p
5−6
10−11
QHD / 1440p
2−3
−
low / 720p
50−55
60−65
medium / 1080p
10−12
24−27
The average gaming FPS of Radeon HD 8770M in Fortnite is 47% more, than GeForce 840M.
high / 1080p
4−5
12−14
ultra / 1080p
−
10−12
QHD / 1440p
0−1
1−2
low / 720p
16−18
27−30
medium / 1080p
7−8
14−16
The average gaming FPS of Radeon HD 8770M in Forza Horizon 4 is 100% more, than GeForce 840M.
low / 768p
45−50
50−55
medium / 768p
−
45−50
high / 1080p
5−6
12−14
ultra / 1080p
2−3
6−7
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Radeon HD 8770M in Grand Theft Auto V is 33% 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
12−14
medium / 1080p
3−4
6−7
The average gaming FPS of Radeon HD 8770M in Metro Exodus is 166% 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
90−95
The average gaming FPS of Radeon HD 8770M in Minecraft is 5% more, than GeForce 840M.
high / 1080p
−
16−18
ultra / 1080p
12−14
14−16
low / 720p
27−30
30−35
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon HD 8770M in PLAYERUNKNOWN'S BATTLEGROUNDS is 22% more, than GeForce 840M.
ultra / 1080p
4−5
7−8
QHD / 1440p
0−1
0−1
low / 720p
6−7
12−14
medium / 1080p
−
10−12
The average gaming FPS of Radeon HD 8770M in Red Dead Redemption 2 is 100% more, than GeForce 840M.
low / 768p
12−14
24−27
medium / 768p
9−10
16−18
high / 1080p
4−5
9−10
ultra / 1080p
3−4
6−7
4K / 2160p
0−1
6−7
The average gaming FPS of Radeon HD 8770M in The Witcher 3: Wild Hunt is 100% more, than GeForce 840M.
low / 768p
75−80
85−90
medium / 768p
35−40
45−50
ultra / 1080p
16−18
20−22
high / 768p
30−35
35−40
The average gaming FPS of Radeon HD 8770M in World of Tanks is 17% more, than GeForce 840M.
Full Specs
GeForce 840M
Radeon HD 8770M
Architecture
Maxwell
GCN
Code name
N15S-GT
Mars
Type
Laptop
Laptop
Release date
12 March 2014
16 November 2012
Pipelines
384
384
Core clock speed
1029 MHz
775 MHz
Boost Clock
1124 MHz
825 MHz
Transistor count
950 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
19.80
Floating-point performance
863.2 gflops
633.6 gflops
Memory bus width
64 Bit
128 Bit
Memory clock speed
2000 MHz
4500 MHz
Memory bandwidth
16.02 GB/s
72 GB/s
Shared memory
-
-
DirectX
12 (11_0)
12 (11_1)
Shader Model
5.1
5.1
OpenGL
4.5
4.6
OpenCL
1.2
1.2
Vulkan
1.1.126
1.2.131
CUDA
+
Bus support
PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256)
92 Mh/s
Laptop size
medium sized
medium sized
Optimus
+
GPU Boost
2.0
GameWorks
+
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