Radeon Pro 455 and Quadro K620 - video card comparison
Passmark - benchmark score Radeon Pro 455 vs Quadro K620
Radeon Pro 455
3205
Quadro K620
2297
Radeon Pro 455
Quadro K620
Architecture
Polaris (2016−2019)
Maxwell (2014−2018)
GPU code name
Polaris 11
GM107
Market segment
Mobile workstation
Workstation
Release date
October 2016
July 2014
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
-
1124 MHz
Core clock speed
855 MHz
1058 MHz
Floating-point performance
1,313 gflops
863.2 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
1,870 million
Pipelines / CUDA cores
768
384
Power consumption (TDP)
-
41 Watt
Texture fill rate
41.04
26.98
Memory type
GDDR5
128 Bit
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5000 MHz
1800 MHz
Memory bandwidth
81.28 GB/s
Up to 29 GB/s
Shared memory
-
-
Display Connectors
No outputs
DVI-I DP
Number of simultaneous displays
-
4
DirectX
12 (12_0)
12
CUDA
-
5.0
OpenCL
2.0
1.2
OpenGL
4.6
4.5
Shader Model
6.4
5
Vulkan
1.2.131
+
3D Vision Pro
-
+
FreeSync
+
-
Mosaic
-
+
nView Desktop Management
-
+