Quadro K620 and Radeon RX 550X 640SP - video card comparison
Quadro K620
Radeon RX 550X 640SP
Architecture
Maxwell (2014−2018)
GCN 4.0 (2016−2020)
GPU code name
GM107
Baffin
Market segment
Workstation
Desktop
Release date
July 2014
April 2018
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
1124 MHz
1071 MHz
Core clock speed
1058 MHz
1019 MHz
Floating-point performance
863.2 gflops
1,371 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,870 million
3,000 million
Pipelines / CUDA cores
384
640
Power consumption (TDP)
41 Watt
60 Watt
Texture fill rate
26.98
42.84
Memory type
128 Bit
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1800 MHz
6000 MHz
Memory bandwidth
Up to 29 GB/s
96 GB/s
Display Connectors
DVI-I DP
1x DVI, 1x HDMI, 1x DisplayPort
Number of simultaneous displays
4
-
HDMI
-
+
DirectX
12
12 (12_0)
CUDA
5.0
-
OpenCL
1.2
2.0
OpenGL
4.5
4.6
Shader Model
5
6.4
Vulkan
+
1.2.131
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-