GeForce GT 420M and HD Graphics 400 - video card comparison
GeForce GT 420M
HD Graphics 400
Architecture
Fermi (2010−2014)
Generation 8.0 (2014−2015)
GPU code name
N11P-GE
Braswell GT1
Market segment
Laptop
Desktop
Release date
September 2010
April 2015
Interface
PCIe 2.0 x16
PCIe 3.0 x1
Boost clock speed
-
640 MHz
Core clock speed
500 MHz
320 MHz
CUDA cores
96
-
Floating-point performance
192 gflops
134.4 gflops
Manufacturing process technology
40 nm
14 nm
Number of transistors
585 million
189 million
Pipelines / CUDA cores
96
96
Power consumption (TDP)
23 Watt
6 Watt
Texture fill rate
6.0 billion/sec
7.680
Memory type
(G)DDR3
DDR3L
Maximum RAM amount
1 GB
8 GB
Memory bus width
128 Bit
System Shared
Memory clock speed
800 MHz
System Shared
Memory bandwidth
25.6 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 (11_1)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.3
Shader Model
5.1
5.1
Vulkan
N/A
1.1.80