Quadro K420 and Quadro 400 - video card comparison
Passmark - benchmark score Quadro K420 vs Quadro 400
Quadro K420
768
Quadro 400
152
Quadro K420
Quadro 400
Architecture
Kepler (2012−2018)
Tesla 2.0 (2007−2013)
GPU code name
GK107
GT216
Market segment
Workstation
Workstation
Release date
July 2014
April 2011
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
876 MHz
450 MHz
Floating-point performance
336.4 gflops
108 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
486 million
Pipelines / CUDA cores
192
48
Power consumption (TDP)
41 Watt
32 Watt
Texture fill rate
14.02
7.200
Memory type
128 Bit
DDR3
Maximum RAM amount
1 GB/2 GB
512 MB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
1540 MHz
Memory bandwidth
Up to 29 GB/s
12.32 GB/s
Display Connectors
DVI-I DP
1x DVI, 1x DisplayPort
Number of simultaneous displays
4
-
DirectX
12
11.1 (10_1)
CUDA
3.0
1.2
OpenCL
1.2
1.1
OpenGL
4.5
3.3
Shader Model
5
4.1
Vulkan
+
N/A
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-