Quadro K420 and GeForce 8400M GT - video card comparison
Passmark - benchmark score Quadro K420 vs GeForce 8400M GT
Quadro K420
768
GeForce 8400M GT
68
Quadro K420
GeForce 8400M GT
Architecture
Kepler (2012−2018)
Tesla (2006−2010)
GPU code name
GK107
G86M
Market segment
Workstation
Laptop
Release date
July 2014
May 2007
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
-
Core clock speed
876 MHz
450 MHz
Floating-point performance
336.4 gflops
28.8 gflops
Manufacturing process technology
28 nm
80 nm
Number of transistors
1,270 million
210 million
Pipelines / CUDA cores
192
16
Power consumption (TDP)
41 Watt
14 Watt
Texture fill rate
14.02
3.600
Memory type
128 Bit
GDDR3 / GDDR2
Maximum RAM amount
1 GB/2 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
600 MHz
Memory bandwidth
Up to 29 GB/s
19.2 GB/s
Shared memory
-
-
Display Connectors
DVI-I DP
No outputs
Number of simultaneous displays
4
-
DirectX
12
11.1 (10_0)
CUDA
3.0
1.1
OpenCL
1.2
1.1
OpenGL
4.5
3.3
Shader Model
5
4.0
Vulkan
+
N/A
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-