GeForce 820M and GeForce GT 620M - video card comparison
Passmark - benchmark score GeForce 820M vs GeForce GT 620M
GeForce 820M
511
GeForce GT 620M
447
GeForce 820M
GeForce GT 620M
Architecture
Fermi (2010−2014)
Fermi (2010−2014)
GPU code name
N15V-GM
N13P-GLP / N13M-GS
Market segment
Laptop
Laptop
Release date
January 2014
March 2012
Bus support
PCI Express 2.0
PCI Express 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Boost clock speed
-
715 MHz
Core clock speed
775 MHz
Up to 625 MHz
CUDA cores
-
96
Floating-point performance
240.0 gflops
253.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
585 million
585 million
Pipelines / CUDA cores
96
96
Power consumption (TDP)
15 Watt
15 Watt
Texture fill rate
10.00
Up to 10.0 billion/sec
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
64 Bit
Up to 128bit
Memory clock speed
1800 MHz
1800 MHz
Memory bandwidth
14.4 GB/s
Up to 28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (11_0)
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
N/A
N/A
3D Blu-Ray
-
+
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
+