GeForce 830M and GeForce 820M - video card comparison
Passmark - benchmark score GeForce 830M vs GeForce 820M
GeForce 830M
1038
GeForce 820M
511
GeForce 830M
GeForce 820M
Architecture
Maxwell (2014−2018)
Fermi (2010−2014)
GPU code name
N15?
N15V-GM
Market segment
Laptop
Laptop
Release date
March 2014
January 2014
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 2.0
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Boost clock speed
1150 MHz
-
Core clock speed
1029 MHz
775 MHz
Floating-point performance
588.8 gflops
240.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
-
585 million
Pipelines / CUDA cores
256
96
Power consumption (TDP)
33 Watt
15 Watt
Texture fill rate
18.40
10.00
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
1800 MHz
1800 MHz
Memory bandwidth
14.4 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
GameWorks
+
+
GPU Boost
2.0
2.0
Optimus
+
+