GeForce RTX 3090 and GeForce RTX 4080 Mobile - video card comparison
GeForce RTX 3090
GeForce RTX 4080 Mobile
Architecture
Ampere (2020−2022)
Ada Lovelace
GPU code name
Ampere GA102
GN21-X9
Market segment
Desktop
Laptop
Release date
September 2020
January 2023
Interface
PCIe 4.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 12-pin
-
Boost clock speed
1700 MHz
2280 MHz
Core clock speed
1400 MHz
1860 MHz
Manufacturing process technology
8 nm
5 nm
Number of transistors
28,300 million
35,800 million
Pipelines / CUDA cores
10496
7424
Power consumption (TDP)
350 Watt
150 Watt (60 - 150 Watt TGP)
Texture fill rate
556.0
386.3
Memory type
GDDR6X
GDDR6X
Maximum RAM amount
24 GB
12 GB
Memory bus width
384 Bit
192 Bit
Memory clock speed
19500 MHz
20000 MHz
Memory bandwidth
936.2 GB/s
432.0 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
Portable Device Dependent
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
CUDA
8.5
8.9
OpenCL
2.0
3.0
OpenGL
4.6
4.6
Shader Model
6.5
6.7
Vulkan
1.2
1.3