Quadro K4000 and Quadro K420 - video card comparison
Passmark - benchmark score Quadro K4000 vs Quadro K420
Quadro K4000
2806
Quadro K420
768
Quadro K4000
Quadro K420
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
GK106
GK107
Market segment
Workstation
Workstation
Release date
March 2013
July 2014
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
810 MHz
876 MHz
Floating-point performance
1,244 gflops
336.4 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,540 million
1,270 million
Pipelines / CUDA cores
768
192
Power consumption (TDP)
80 Watt
41 Watt
Texture fill rate
51.84
14.02
Memory type
GDDR5
128 Bit
Maximum RAM amount
3 GB
1 GB/2 GB
Memory bus width
192 Bit
128 Bit
Memory clock speed
5616 MHz
1782 MHz
Memory bandwidth
134.8 GB/s
Up to 29 GB/s
Display Connectors
1x DVI, 2x DisplayPort
DVI-I DP
Number of simultaneous displays
-
4
DirectX
12 (11_0)
12
CUDA
3.0
3.0
OpenCL
1.2
1.2
OpenGL
4.6
4.5
Shader Model
5.1
5
Vulkan
+
+
3D Vision Pro
-
+
Mosaic
-
+
nView Desktop Management
-
+