GeForce GT 640M LE vs Quadro K420
When comparing GeForce GT 640M LE 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 GT 640M LE and Quadro K420 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
GeForce GT 640M LE is a Laptop Graphics Card
Note: GeForce GT 640M LE 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 GT 640M LE here:
Main Specs
GeForce GT 640M LE
Quadro K420
Power consumption (TDP)
20 Watt
41 Watt
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
Memory type
DDR3\DDR5
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 105% more power consumption, than GeForce GT 640M LE.
Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
GeForce GT 640M LE has 1 GB more memory, than Quadro K420.
GeForce GT 640M LE is used in Laptops, and Quadro K420 - in Desktops.
GeForce GT 640M LE is build with Fermi / Kepler architecture, and Quadro K420 - with Kepler.
GeForce GT 640M LE and Quadro K420 are manufactured by 28 nm process technology.
Memory clock speed of GeForce GT 640M LE is 18 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
0−1
0−1
ultra / 1080p
−
0−1
QHD / 1440p
0−1
0−1
low / 720p
1−2
9−10
medium / 1080p
0−1
1−2
The average gaming FPS of Quadro K420 in Assassin's Creed Odyssey is 800% more, than GeForce GT 640M LE.
ultra / 1080p
−
1−2
QHD / 1440p
0−1
0−1
low / 720p
0−1
9−10
medium / 1080p
−
2−3
low / 768p
50−55
50−55
high / 1080p
45−50
45−50
QHD / 1440p
0−1
0−1
GeForce GT 640M LE and Quadro K420 have the same average FPS in Call of Duty: Warzone.
low / 768p
60−65
100−110
medium / 768p
27−30
75−80
ultra / 1080p
7−8
30−35
4K / 2160p
−
9−10
high / 768p
16−18
50−55
The average gaming FPS of Quadro K420 in Counter-Strike: Global Offensive is 135% more, than GeForce GT 640M LE.
low / 768p
70−75
70−75
ultra / 1080p
0−1
10−12
medium / 1080p
45−50
45−50
GeForce GT 640M LE and Quadro K420 have the same average FPS in Cyberpunk 2077.
low / 768p
45−50
65−70
medium / 768p
10−11
35−40
ultra / 1080p
0−1
14−16
The average gaming FPS of Quadro K420 in Dota 2 is 79% more, than GeForce GT 640M LE.
high / 1080p
−
1−2
4K / 2160p
−
0−1
low / 720p
0−1
7−8
medium / 1080p
−
2−3
QHD / 1440p
−
0−1
low / 720p
21−24
40−45
medium / 1080p
0−1
4−5
The average gaming FPS of Quadro K420 in Fortnite is 90% more, than GeForce GT 640M LE.
high / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
low / 720p
0−1
10−12
medium / 1080p
0−1
3−4
low / 768p
18−20
35−40
high / 1080p
0−1
1−2
QHD / 1440p
0−1
0−1
medium / 720p
12−14
30−35
The average gaming FPS of Quadro K420 in Grand Theft Auto V is 118% more, than GeForce GT 640M LE.
high / 1080p
−
0−1
ultra / 1080p
−
0−1
4K / 2160p
−
0−1
low / 720p
0−1
1−2
low / 768p
75−80
85−90
high / 1080p
27−30
50−55
The average gaming FPS of Quadro K420 in Minecraft is 32% more, than GeForce GT 640M LE.
high / 1080p
−
14−16
ultra / 1080p
−
12−14
low / 720p
8−9
21−24
medium / 1080p
−
14−16
The average gaming FPS of Quadro K420 in PLAYERUNKNOWN'S BATTLEGROUNDS is 175% more, than GeForce GT 640M LE.
QHD / 1440p
−
0−1
low / 720p
0−1
2−3
low / 768p
0−1
4−5
high / 1080p
−
2−3
4K / 2160p
−
0−1
low / 768p
45−50
65−70
medium / 768p
14−16
30−35
ultra / 1080p
0−1
10−12
high / 768p
12−14
27−30
The average gaming FPS of Quadro K420 in World of Tanks is 68% more, than GeForce GT 640M LE.
Full Specs
GeForce GT 640M LE
Quadro K420
Architecture
Fermi / Kepler
Kepler
Code name
N13P-LP
GK107
Type
Laptop
Workstation
Release date
22 March 2012
22 July 2014
Pipelines
384
192
Core clock speed
876 MHz
Transistor count
585 million
1,270 million
Manufacturing process technology
28 nm
28 nm
Texture fill rate
14.02
Floating-point performance
384.0 gflops
336.4 gflops
Length
160 mm
Memory bus width
128bit
128 Bit
Memory clock speed
1800 - 4000 MHz
1782 MHz
Shared memory
-
DirectX
12 API
12
Shader Model
5.1
5
OpenGL
4.5
4.5
OpenCL
1.1
1.2
Vulkan
N/A
+
CUDA
+
3.0
CUDA cores
Up to 384
Bus support
PCI Express 2.0, PCI Express 3.0
HDMI
+
HDCP
+
Maximum VGA resolution
Up to 2048x1536
3D Blu-Ray
+
Bitcoin / BTC (SHA256)
14 Mh/s
11 Mh/s
Laptop size
medium sized
Optimus
+
3D Vision Pro
+
Mosaic
+
Width
1" (2.5 cm)
Number of simultaneous displays
4
nView Desktop Management
+
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