GeForce GT 650M and GeForce RTX 3080 Mobile - video card comparison
GeForce GT 650M
GeForce RTX 3080 Mobile
Architecture
Kepler (2012−2018)
Ampere (2020−2022)
GPU code name
N13E-GE
GN20-E7 GA104
Market segment
Laptop
Laptop
Release date
March 2012
January 2021
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Boost clock speed
900 MHz
1245 - 1710 MHz
Core clock speed
Up to 900 MHz
780 - 1100 MHz
CUDA cores
384
-
Floating-point performance
652.8 gflops
-
Manufacturing process technology
28 nm
8 nm
Number of transistors
1,270 million
17,400 million
Pipelines / CUDA cores
384
6144
Power consumption (TDP)
45 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
Up to 27.2 billion/sec
296.6
Memory type
DDR3\GDDR5
GDDR6
Maximum RAM amount
2 GB
16 GB
Memory bus width
128bit
256 Bit
Memory clock speed
1800 - 4000 MHz
14000 MHz
Memory bandwidth
Up to 80.0 GB/s
384.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 Ultimate (12_2)
CUDA
+
8.6
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2
3D Blu-Ray
+
-
Optimus
+
-