GeForce 840M vs Radeon R9 M280X
If you are going to buy a new graphics card and are choosing between GeForce 840M and Radeon R9 M280X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce 840M stacks up against Radeon R9 M280X, check out specs charts below.
GeForce 840M and Radeon R9 M280X are Laptop Graphics Cards
Note: GeForce 840M and Radeon R9 M280X 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 R9 M280X here:
Main Specs
GeForce 840M
Radeon R9 M280X
Power consumption (TDP)
33 Watt
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Memory type
DDR3
Not Listed
Maximum RAM amount
4 GB
Display Connectors
No outputs
No outputs
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GeForce 840M is connected by PCIe 3.0 x8, and Radeon R9 M280X uses PCIe 3.0 x16 interface.
Both cards are used in Laptops.
GeForce 840M is build with Maxwell architecture, and Radeon R9 M280X - with GCN.
Core clock speed of GeForce 840M is 129 MHz higher, than Radeon R9 M280X.
GeForce 840M and Radeon R9 M280X 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
1−2
2−3
ultra / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
low / 720p
12−14
14−16
medium / 1080p
3−4
4−5
The average gaming FPS of Radeon R9 M280X in Assassin's Creed Odyssey is 16% more, than GeForce 840M.
high / 1080p
−
7−8
ultra / 1080p
4−5
5−6
QHD / 1440p
0−1
0−1
low / 720p
16−18
18−20
medium / 1080p
5−6
7−8
The average gaming FPS of Radeon R9 M280X in Battlefield 5 is 11% more, than GeForce 840M.
low / 768p
45−50
50−55
high / 1080p
40−45
30−35
QHD / 1440p
0−1
0−1
The average gaming FPS of GeForce 840M in Call of Duty: Warzone is 7% more, than Radeon R9 M280X.
low / 768p
120−130
110−120
medium / 768p
90−95
90−95
ultra / 1080p
40−45
40−45
QHD / 1440p
24−27
24−27
4K / 2160p
18−20
18−20
high / 768p
65−70
65−70
The average gaming FPS of GeForce 840M in Counter-Strike: Global Offensive is 3% more, than Radeon R9 M280X.
low / 768p
85−90
70−75
ultra / 1080p
16−18
21−24
medium / 1080p
40−45
45−50
The average gaming FPS of GeForce 840M in Cyberpunk 2077 is 4% more, than Radeon R9 M280X.
low / 768p
75−80
70−75
medium / 768p
50−55
50−55
ultra / 1080p
24−27
27−30
GeForce 840M and Radeon R9 M280X have the same average FPS in Dota 2.
high / 1080p
2−3
3−4
ultra / 1080p
2−3
3−4
4K / 2160p
0−1
2−3
low / 720p
12−14
14−16
medium / 1080p
3−4
4−5
The average gaming FPS of Radeon R9 M280X in Far Cry 5 is 20% more, than GeForce 840M.
high / 1080p
10−11
10−12
ultra / 1080p
5−6
5−6
QHD / 1440p
2−3
2−3
low / 720p
50−55
50−55
medium / 1080p
10−12
14−16
The average gaming FPS of Radeon R9 M280X in Fortnite is 6% more, than GeForce 840M.
high / 1080p
4−5
6−7
QHD / 1440p
0−1
4−5
4K / 2160p
−
2−3
low / 720p
16−18
21−24
medium / 1080p
7−8
9−10
The average gaming FPS of Radeon R9 M280X in Forza Horizon 4 is 33% more, than GeForce 840M.
low / 768p
45−50
45−50
medium / 768p
−
40−45
high / 1080p
5−6
7−8
ultra / 1080p
2−3
3−4
QHD / 1440p
0−1
0−1
medium / 720p
35−40
−
The average gaming FPS of Radeon R9 M280X in Grand Theft Auto V is 5% more, than GeForce 840M.
high / 1080p
1−2
2−3
ultra / 1080p
0−1
0−1
4K / 2160p
0−1
0−1
low / 720p
5−6
8−9
medium / 1080p
3−4
4−5
The average gaming FPS of Radeon R9 M280X in Metro Exodus is 66% more, than GeForce 840M.
low / 768p
90−95
80−85
high / 1080p
85−90
−
ultra / 1080p
70−75
70−75
medium / 1080p
90−95
−
The average gaming FPS of GeForce 840M in Minecraft is 6% more, than Radeon R9 M280X.
ultra / 1080p
12−14
12−14
low / 720p
27−30
27−30
medium / 1080p
14−16
14−16
GeForce 840M and Radeon R9 M280X have the same average FPS in PLAYERUNKNOWN'S BATTLEGROUNDS.
ultra / 1080p
4−5
6−7
QHD / 1440p
0−1
−
low / 720p
6−7
8−9
medium / 1080p
−
7−8
The average gaming FPS of Radeon R9 M280X in Red Dead Redemption 2 is 40% more, than GeForce 840M.
low / 768p
12−14
16−18
medium / 768p
9−10
10−12
high / 1080p
4−5
6−7
ultra / 1080p
3−4
4−5
4K / 2160p
0−1
2−3
The average gaming FPS of Radeon R9 M280X in The Witcher 3: Wild Hunt is 28% more, than GeForce 840M.
low / 768p
75−80
70−75
medium / 768p
35−40
35−40
ultra / 1080p
16−18
16−18
high / 768p
30−35
30−35
The average gaming FPS of GeForce 840M in World of Tanks is 5% more, than Radeon R9 M280X.
Full Specs
GeForce 840M
Radeon R9 M280X
Architecture
Maxwell
GCN
Code name
N15S-GT
Saturn XT
Type
Laptop
Laptop
Release date
12 March 2014
1 February 2015
Pipelines
384
896
Core clock speed
1029 MHz
900 MHz
Boost Clock
1124 MHz
Transistor count
2,080 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
61.60
Floating-point performance
863.2 gflops
1,792 gflops
Memory bus width
64 Bit
Memory clock speed
2000 MHz
Memory bandwidth
16.02 GB/s
96 GB/s
Shared memory
-
-
DirectX
12 (11_0)
Shader Model
5.1
6.3
OpenGL
4.5
4.4
OpenCL
1.2
Not Listed
Vulkan
1.1.126
CUDA
+
FreeSync
+
Bus support
PCI Express 2.0, PCI Express 3.0
Not Listed
Bitcoin / BTC (SHA256)
92 Mh/s
Laptop size
medium sized
large
Optimus
+
HD3D
+
PowerTune
+
DualGraphics
+
ZeroCore
+
Switchable graphics
+
Mantle
+
GPU Boost
2.0
GameWorks
+
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