GeForce 840A vs Quadro K420
When comparing GeForce 840A and Quadro K420, 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 840A and Quadro K420 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce 840A
Main Specs
GeForce 840A
Quadro K420
Power consumption (TDP)
33 Watt
41 Watt
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
Memory type
DDR3
128 Bit
Maximum RAM amount
2 GB
1 GB/2 GB
Display Connectors
No outputs
1x DVI, 1x DisplayPort
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Quadro K420 has 24% more power consumption, than GeForce 840A.
GeForce 840A is connected by PCIe 3.0 x8, and Quadro K420 uses PCIe 2.0 x16 interface.
GeForce 840A has 1 GB more memory, than Quadro K420.
Both cards are used in Desktops.
GeForce 840A is build with Maxwell architecture, and Quadro K420 - with Kepler.
Core clock speed of GeForce 840A is 153 MHz higher, than Quadro K420.
GeForce 840A and Quadro K420 are manufactured by 28 nm process technology.
Memory clock speed of GeForce 840A is 220 MHz higher, than Quadro K420.
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
3−4
0−1
ultra / 1080p
2−3
0−1
QHD / 1440p
0−1
0−1
low / 720p
14−16
9−10
medium / 1080p
5−6
1−2
The average gaming FPS of GeForce 840A in Assassin's Creed Odyssey is 100% more, than Quadro K420.
ultra / 1080p
7−8
1−2
QHD / 1440p
0−1
0−1
low / 720p
18−20
9−10
medium / 1080p
8−9
2−3
The average gaming FPS of GeForce 840A in Battlefield 5 is 175% more, than Quadro K420.
low / 768p
45−50
50−55
high / 1080p
30−35
45−50
QHD / 1440p
0−1
0−1
The average gaming FPS of Quadro K420 in Call of Duty: Warzone is 25% more, than GeForce 840A.
low / 768p
120−130
100−110
medium / 768p
90−95
75−80
ultra / 1080p
40−45
30−35
QHD / 1440p
24−27
−
4K / 2160p
18−20
9−10
high / 768p
65−70
50−55
The average gaming FPS of GeForce 840A in Counter-Strike: Global Offensive is 25% more, than Quadro K420.
low / 768p
80−85
70−75
ultra / 1080p
14−16
10−12
medium / 1080p
40−45
45−50
The average gaming FPS of GeForce 840A in Cyberpunk 2077 is 6% more, than Quadro K420.
low / 768p
75−80
65−70
medium / 768p
50−55
35−40
ultra / 1080p
27−30
14−16
The average gaming FPS of GeForce 840A in Dota 2 is 30% more, than Quadro K420.
high / 1080p
5−6
1−2
4K / 2160p
2−3
0−1
low / 720p
14−16
7−8
medium / 1080p
6−7
2−3
The average gaming FPS of GeForce 840A in Far Cry 5 is 200% more, than Quadro K420.
high / 1080p
12−14
−
ultra / 1080p
7−8
−
QHD / 1440p
−
0−1
low / 720p
50−55
40−45
medium / 1080p
14−16
4−5
The average gaming FPS of GeForce 840A in Fortnite is 43% more, than Quadro K420.
high / 1080p
7−8
1−2
QHD / 1440p
0−1
0−1
low / 720p
20−22
10−12
medium / 1080p
9−10
3−4
The average gaming FPS of GeForce 840A in Forza Horizon 4 is 140% more, than Quadro K420.
low / 768p
45−50
35−40
high / 1080p
8−9
1−2
ultra / 1080p
5−6
−
QHD / 1440p
0−1
0−1
medium / 720p
40−45
30−35
The average gaming FPS of GeForce 840A in Grand Theft Auto V is 39% more, than Quadro K420.
high / 1080p
3−4
0−1
ultra / 1080p
1−2
0−1
4K / 2160p
0−1
0−1
low / 720p
8−9
1−2
medium / 1080p
4−5
−
The average gaming FPS of GeForce 840A in Metro Exodus is 700% more, than Quadro K420.
low / 768p
85−90
85−90
high / 1080p
85−90
50−55
ultra / 1080p
80−85
−
medium / 1080p
85−90
−
The average gaming FPS of GeForce 840A in Minecraft is 24% more, than Quadro K420.
high / 1080p
−
14−16
ultra / 1080p
12−14
12−14
low / 720p
27−30
21−24
medium / 1080p
14−16
14−16
The average gaming FPS of GeForce 840A in PLAYERUNKNOWN'S BATTLEGROUNDS is 12% more, than Quadro K420.
ultra / 1080p
7−8
−
QHD / 1440p
0−1
0−1
low / 720p
8−9
2−3
The average gaming FPS of GeForce 840A in Red Dead Redemption 2 is 300% more, than Quadro K420.
low / 768p
16−18
4−5
medium / 768p
12−14
−
high / 1080p
6−7
2−3
ultra / 1080p
5−6
−
4K / 2160p
−
0−1
The average gaming FPS of GeForce 840A in The Witcher 3: Wild Hunt is 266% more, than Quadro K420.
low / 768p
70−75
65−70
medium / 768p
35−40
30−35
ultra / 1080p
16−18
10−12
high / 768p
30−35
27−30
The average gaming FPS of GeForce 840A in World of Tanks is 14% more, than Quadro K420.
Full Specs
GeForce 840A
Quadro K420
Architecture
Maxwell
Kepler
Code name
GM108
GK107
Type
Desktop
Workstation
Release date
17 March 2014
22 July 2014
Pipelines
384
192
Core clock speed
1029 MHz
876 MHz
Boost Clock
1124 MHz
Transistor count
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
17.98
14.02
Floating-point performance
863.2 gflops
336.4 gflops
Length
160 mm
Memory bus width
64 Bit
128 Bit
Memory clock speed
2002 MHz
1782 MHz
Memory bandwidth
16.02 GB/s
DirectX
12 (11_0)
12
Shader Model
5.1
5
OpenGL
4.6
4.5
OpenCL
1.2
1.2
Vulkan
1.1.126
+
CUDA
5.0
3.0
Bitcoin / BTC (SHA256)
11 Mh/s
3D Vision Pro
+
Mosaic
+
Width
1" (2.5 cm)
Number of simultaneous displays
4
nView Desktop Management
+
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