GeForce 820M and HD Graphics 4200 - video card comparison
GeForce 820M
HD Graphics 4200
Architecture
Fermi (2010−2014)
Gen. 7.5 Haswell (2012−2013)
GPU code name
N15V-GM
Haswell GT2
Market segment
Laptop
Laptop
Release date
January 2014
June 2013
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Boost clock speed
-
850 MHz
Core clock speed
775 MHz
200 MHz
Floating-point performance
240.0 gflops
-
Manufacturing process technology
28 nm
22 nm
Number of transistors
585 million
392 million
Pipelines / CUDA cores
96
20
Power consumption (TDP)
15 Watt
4 Watt
Texture fill rate
10.00
17.00
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
64 Bit
64/128 Bit
Memory clock speed
1800 MHz
System Shared
Memory bandwidth
14.4 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_1)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.3
Shader Model
5.1
5.1
Vulkan
N/A
1.1.80
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-
Quick Sync
-
+