Quadro K420 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Quadro K420 vs Radeon HD 6450
Quadro K420
768
Radeon HD 6450
203
Quadro K420
Radeon HD 6450
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK107
Caicos
Market segment
Workstation
Desktop
Release date
July 2014
April 2011
Bus support
-
PCIe 2.0 x8
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
-
750 MHz
Core clock speed
876 MHz
-
Floating-point performance
336.4 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
370 million
Pipelines / CUDA cores
192
160
Power consumption (TDP)
41 Watt
30 Watt
Texture fill rate
14.02
5.000
Memory type
128 Bit
GDDR5
Maximum RAM amount
1 GB/2 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
800 MHz
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Memory bandwidth
Up to 29 GB/s
25.6 GB/s
Display Connectors
DVI-I DP
1x DVI, 1x HDMI, 1x VGA
Number of simultaneous displays
4
-
Eyefinity
-
1
Number of Eyefinity displays
-
4
HDMI
-
+
DisplayPort support
-
+
DirectX
12
DirectX® 11
CUDA
3.0
-
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.5
4.4
Shader Model
5
5.0
Vulkan
+
-
3D Vision Pro
+
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
Mosaic
+
-
nView Desktop Management
+
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-