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Quadro K420 and GeForce GT 620 - video card comparison


Passmark - benchmark score Quadro K420 vs GeForce GT 620

Quadro K420
768
GeForce GT 620
388

Quadro K420

GeForce GT 620


Architecture
Kepler (2012−2018)
Fermi (2010−2014)

GPU code name
GK107
GF108

Market segment
Workstation
Desktop

Release date
July 2014
May 2012

Bus support
-
PCI Express 2.0

Interface
PCIe 2.0 x16
PCIe 2.0 x16

Supplementary power connectors
None
None

Core clock speed
876 MHz
700 MHz

CUDA cores
-
96

Floating-point performance
336.4 gflops
268.8 gflops

Manufacturing process technology
28 nm
40 nm

Number of transistors
1,270 million
585 million

Pipelines / CUDA cores
192
96

Power consumption (TDP)
41 Watt
49 Watt

Maximum GPU temperature
-
98 °C

Texture fill rate
14.02
11.2 billion/sec

Memory type
128 Bit
DDR3

Maximum RAM amount
1 GB/2 GB
1 GB

Memory bus width
128 Bit
64 Bit

Memory clock speed
1782 MHz
1.8 GB/s

Memory bandwidth
Up to 29 GB/s
14.4 GB/s

Display Connectors
DVI-I DP
Dual Link DVI-I, HDMI, VGA

Number of simultaneous displays
4
-

Multi monitor support
-
+

HDMI
-
+

HDCP
-
+

Maximum VGA resolution
-
2048x1536

Audio input for HDMI
-
Internal

DirectX
12
12 (11_0)

CUDA
3.0
+

OpenCL
1.2
1.1

OpenGL
4.5
4.2

Shader Model
5
5.1

Vulkan
+
N/A

3D Blu-Ray
-
+

3D Vision Pro
+
-

Mosaic
+
-

nView Desktop Management
+
-