Quadro K420 and Radeon RX 6400 - video card comparison
Passmark - benchmark score Quadro K420 vs Radeon RX 6400
Quadro K420
768
Radeon RX 6400
7776
Quadro K420
Radeon RX 6400
Architecture
Kepler (2012−2018)
RDNA 2.0 (2020−2022)
GPU code name
GK107
Navi 24
Market segment
Workstation
Desktop
Release date
July 2014
January 2022
Interface
PCIe 2.0 x16
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
-
2321 MHz
Core clock speed
876 MHz
-
Floating-point performance
336.4 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
1,270 million
5,400 million
Pipelines / CUDA cores
192
768
Power consumption (TDP)
41 Watt
53 Watt
Texture fill rate
14.02
111.4
Memory type
128 Bit
GDDR6
Maximum RAM amount
1 GB/2 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
16 GB/s
Memory bandwidth
Up to 29 GB/s
128.0 GB/s
Display Connectors
DVI-I DP
1x HDMI 2.1, 1x DisplayPort 1.4a
Number of simultaneous displays
4
-
HDMI
-
+
DirectX
12
12 Ultimate (12_2)
CUDA
3.0
-
OpenCL
1.2
2.2
OpenGL
4.5
4.6
Shader Model
5
6.6
Vulkan
+
1.3
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-