Quadro RTX 4000 and Quadro K420 - video card comparison
Passmark - benchmark score Quadro RTX 4000 vs Quadro K420
Quadro RTX 4000
15857
Quadro K420
768
Quadro RTX 4000
Quadro K420
Architecture
Turing (2018−2021)
Kepler (2012−2018)
GPU code name
TU104
GK107
Market segment
Workstation
Workstation
Release date
November 2018
July 2014
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 8-pin
None
Boost clock speed
1545 MHz
-
Core clock speed
1005 MHz
876 MHz
Floating-point performance
-
336.4 gflops
Manufacturing process technology
12 nm
28 nm
Number of transistors
13,600 million
1,270 million
Pipelines / CUDA cores
2304
192
Power consumption (TDP)
160 Watt
41 Watt
Texture fill rate
222.5
14.02
Memory type
GDDR6
128 Bit
Maximum RAM amount
8 GB
1 GB/2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
13000 MHz
1782 MHz
Memory bandwidth
416.0 GB/s
Up to 29 GB/s
Display Connectors
3x DisplayPort, 1x USB Type-C
DVI-I DP
Number of simultaneous displays
-
4
DirectX
12 Ultimate (12_1)
12
CUDA
7.5
3.0
OpenCL
1.2
1.2
OpenGL
4.6
4.5
Shader Model
6.5
5
Vulkan
1.2.131
+
3D Vision Pro
-
+
Mosaic
-
+
nView Desktop Management
-
+