Quadro K620 and Radeon HD 6450 GDDR5 - video card comparison
Quadro K620
Radeon HD 6450 GDDR5
Architecture
Maxwell (2014−2018)
Terascale 2 (2009−2015)
GPU code name
GM107
Caicos
Market segment
Workstation
Desktop
Release date
July 2014
April 2011
Interface
PCIe 2.0 x16
-
Supplementary power connectors
None
-
Boost clock speed
1124 MHz
-
Core clock speed
1058 MHz
750 MHz
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,870 million
-
Pipelines / CUDA cores
384
160
Power consumption (TDP)
41 Watt
27 Watt
Texture fill rate
26.98
-
Memory type
128 Bit
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1800 MHz
900 MHz
Memory bandwidth
Up to 29 GB/s
-
Shared memory
-
-
Display Connectors
DVI-I DP
-
Number of simultaneous displays
4
-
DirectX
12
11
CUDA
5.0
-
OpenCL
1.2
-
OpenGL
4.5
-
Shader Model
5
-
Vulkan
+
-
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-