Quadro K420 and Radeon R7 450 OEM - video card comparison
Quadro K420
Radeon R7 450 OEM
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK107
Cape Verde
Market segment
Workstation
Desktop
Release date
July 2014
June 2016
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
None
Core clock speed
876 MHz
925 MHz
Floating-point performance
336.4 gflops
947.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,500 million
Pipelines / CUDA cores
192
512
Power consumption (TDP)
41 Watt
65 Watt
Texture fill rate
14.02
29.60
Memory type
128 Bit
GDDR5
Maximum RAM amount
1 GB/2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
4.5 GB/s
Memory bandwidth
Up to 29 GB/s
72 GB/s
Display Connectors
DVI-I DP
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
Number of simultaneous displays
4
-
HDMI
-
+
DirectX
12
12 (11_1)
CUDA
3.0
-
OpenCL
1.2
2.1 (1.2)
OpenGL
4.5
4.6
Shader Model
5
6.5 (5.1)
Vulkan
+
1.2.170
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-