GeForce 840M vs Radeon HD 7870
When choosing between GeForce 840M and Radeon HD 7870, 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 7870.
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 7870
Power consumption (TDP)
33 Watt
175 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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Radeon HD 7870 has 430% more power consumption, than GeForce 840M.
GeForce 840M has 2 GB more memory, than Radeon HD 7870.
GeForce 840M is used in Laptops, and Radeon HD 7870 - in Desktops.
GeForce 840M is build with Maxwell architecture, and Radeon HD 7870 - with GCN.
Core clock speed of GeForce 840M is 29 MHz higher, than Radeon HD 7870.
GeForce 840M and Radeon HD 7870 are manufactured by 28 nm process technology.
Memory clock speed of Radeon HD 7870 is 2800 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
24−27
ultra / 1080p
0−1
14−16
QHD / 1440p
0−1
9−10
4K / 2160p
−
6−7
low / 720p
12−14
45−50
medium / 1080p
3−4
30−33
The average gaming FPS of Radeon HD 7870 in Assassin's Creed Odyssey is 466% more, than GeForce 840M.
high / 1080p
−
35−40
ultra / 1080p
4−5
30−35
QHD / 1440p
0−1
16−18
4K / 2160p
−
10−11
low / 720p
16−18
75−80
medium / 1080p
5−6
40−45
The average gaming FPS of Radeon HD 7870 in Battlefield 5 is 455% more, than GeForce 840M.
low / 768p
45−50
50−55
high / 1080p
40−45
−
QHD / 1440p
0−1
0−1
The average gaming FPS of Radeon HD 7870 in Call of Duty: Warzone is 10% more, than GeForce 840M.
low / 768p
120−130
240−250
medium / 768p
90−95
210−220
ultra / 1080p
40−45
130−140
QHD / 1440p
24−27
100−110
4K / 2160p
18−20
60−65
high / 768p
65−70
180−190
The average gaming FPS of Radeon HD 7870 in Counter-Strike: Global Offensive is 153% more, than GeForce 840M.
low / 768p
85−90
60−65
ultra / 1080p
16−18
−
medium / 1080p
40−45
55−60
The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 8% more, than Radeon HD 7870.
low / 768p
75−80
120−130
medium / 768p
50−55
110−120
ultra / 1080p
24−27
85−90
The average gaming FPS of Radeon HD 7870 in Dota 2 is 113% more, than GeForce 840M.
high / 1080p
2−3
30−33
ultra / 1080p
2−3
27−30
QHD / 1440p
−
21−24
4K / 2160p
0−1
9−10
low / 720p
12−14
60−65
medium / 1080p
3−4
30−35
The average gaming FPS of Radeon HD 7870 in Far Cry 5 is 660% more, than GeForce 840M.
high / 1080p
10−11
35−40
ultra / 1080p
5−6
30−33
QHD / 1440p
2−3
18−20
low / 720p
50−55
130−140
medium / 1080p
10−12
80−85
The average gaming FPS of Radeon HD 7870 in Fortnite is 281% more, than GeForce 840M.
high / 1080p
4−5
40−45
ultra / 1080p
−
30−33
QHD / 1440p
0−1
18−20
4K / 2160p
−
14−16
low / 720p
16−18
75−80
medium / 1080p
7−8
45−50
The average gaming FPS of Radeon HD 7870 in Forza Horizon 4 is 511% more, than GeForce 840M.
low / 768p
45−50
110−120
medium / 768p
−
100−110
high / 1080p
5−6
45−50
ultra / 1080p
2−3
20−22
QHD / 1440p
0−1
10−11
medium / 720p
35−40
−
The average gaming FPS of Radeon HD 7870 in Grand Theft Auto V is 238% more, than GeForce 840M.
high / 1080p
1−2
14−16
ultra / 1080p
0−1
12−14
QHD / 1440p
−
10−12
4K / 2160p
0−1
4−5
low / 720p
5−6
45−50
medium / 1080p
3−4
21−24
The average gaming FPS of Radeon HD 7870 in Metro Exodus is 833% more, than GeForce 840M.
low / 768p
90−95
120−130
high / 1080p
85−90
−
ultra / 1080p
70−75
−
medium / 1080p
90−95
110−120
The average gaming FPS of Radeon HD 7870 in Minecraft is 30% more, than GeForce 840M.
ultra / 1080p
12−14
14−16
low / 720p
27−30
75−80
medium / 1080p
14−16
18−20
The average gaming FPS of Radeon HD 7870 in PLAYERUNKNOWN'S BATTLEGROUNDS is 105% more, than GeForce 840M.
high / 1080p
−
16−18
ultra / 1080p
4−5
10−12
QHD / 1440p
0−1
4−5
4K / 2160p
−
2−3
low / 720p
6−7
45−50
medium / 1080p
−
24−27
The average gaming FPS of Radeon HD 7870 in Red Dead Redemption 2 is 480% more, than GeForce 840M.
low / 768p
12−14
85−90
medium / 768p
9−10
50−55
high / 1080p
4−5
30−33
ultra / 1080p
3−4
16−18
4K / 2160p
0−1
10−11
The average gaming FPS of Radeon HD 7870 in The Witcher 3: Wild Hunt is 571% more, than GeForce 840M.
low / 768p
75−80
90−95
medium / 768p
35−40
60−65
ultra / 1080p
16−18
45−50
high / 768p
30−35
55−60
The average gaming FPS of Radeon HD 7870 in World of Tanks is 58% more, than GeForce 840M.
Full Specs
GeForce 840M
Radeon HD 7870
Architecture
Maxwell
GCN
Code name
N15S-GT
Pitcairn XT
Type
Laptop
Desktop
Release date
12 March 2014
5 March 2012
Pipelines
384
1280
Core clock speed
1029 MHz
1000 MHz
Boost Clock
1124 MHz
Transistor count
2800 Million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
Floating-point performance
863.2 gflops
Memory bus width
64 Bit
256 Bit
Memory clock speed
2000 MHz
4800 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
+
Monero / XMR (CryptoNight)
0.39 kh/s
Bus support
PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256)
92 Mh/s
Laptop size
medium sized
Optimus
+
Eyefinity
+
Decred / DCR (Decred)
0.63 Gh/s
Ethereum / ETH (DaggerHashimoto)
16.6 Mh/s
Zcash / ZEC (Equihash)
145 Sol/s
GPU Boost
2.0
GameWorks
+
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