GeForce 820M and Tegra X1 - video card comparison
GeForce 820M
Tegra X1
Architecture
Fermi (2010−2014)
Maxwell 2.0 (2015−2019)
GPU code name
N15V-GM
GM20B
Market segment
Laptop
Desktop
Release date
January 2014
-
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
IGP
Core clock speed
775 MHz
1000 MHz
Floating-point performance
240.0 gflops
-
Manufacturing process technology
28 nm
20 nm
Number of transistors
585 million
2,000 million
Pipelines / CUDA cores
96
256
Power consumption (TDP)
15 Watt
15 Watt
Texture fill rate
10.00
16.00
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
64 Bit
System Shared
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 (12_1)
CUDA
+
-
OpenCL
1.1
-
OpenGL
4.5
4.6
Shader Model
5.1
-
Vulkan
N/A
-
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-