GeForce GTX 1080 and GeForce 820M - video card comparison
Passmark - benchmark score GeForce GTX 1080 vs GeForce 820M
GeForce GTX 1080
16002
GeForce 820M
511
GeForce GTX 1080
GeForce 820M
Architecture
Pascal (2016−2021)
Fermi (2010−2014)
GPU code name
Pascal GP104
N15V-GM
Market segment
Desktop
Laptop
Release date
May 2016
January 2014
Bus support
PCIe 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
8-pin
-
SLI options
+
-
Boost clock speed
1733 MHz
-
Core clock speed
1607 MHz
775 MHz
CUDA cores
2560
-
Floating-point performance
8,873 gflops
240.0 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
585 million
Pipelines / CUDA cores
2560
96
Power consumption (TDP)
180 Watt
15 Watt
Maximum GPU temperature
94 °C
-
Texture fill rate
277.3
10.00
Memory type
GDDR5X
DDR3
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
10 GB/s
1800 MHz
Memory bandwidth
320 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
DP 1.42, HDMI 2.0b, DL-DVI
No outputs
Multi monitor support
+
-
HDMI
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
4.5
Shader Model
6.4
5.1
Vulkan
1.2.131
N/A
Ansel
+
-
GameWorks
-
+
GPU Boost
3.0
2.0
Optimus
-
+
VR Ready
+
-