NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce RTX 3080 12 GB
GPU Specs Compare
Graphics Card
Release Date
Jan 2023
Jan 2022
Generation
GeForce 40 Mobile
GeForce 30
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1335 MHz
1260 MHz
Boost Clock
1695 MHz
1710 MHz
Memory Clock
2250 MHz
1188 MHz
Memory
Memory Size
16GB
12GB
Memory Type
GDDR6
GDDR6X
Memory Bus
256bit
384bit
Bandwidth
576.0GB/s
912.4GB/s
Render Config
SM Count
76
70
Shading Units
9728
8960
TMUs
304
280
ROPs
112
96
Tensor Cores
304
280
RT Cores
76
70
L1 Cache
128 KB (per SM)
128 KB (per SM)
L2 Cache
64 MB
6 MB
Theoretical Performance
Pixel Rate
189.8 GPixel/s
164.2 GPixel/s
Texture Rate
515.3 GTexel/s
478.8 GTexel/s
FP16 (half)
32.98 TFLOPS
30.64 TFLOPS
FP32 (float)
32.98 TFLOPS
30.64 TFLOPS
FP64 (double)
515.3 GFLOPS
478.8 GFLOPS
Graphics Processor
GPU Name
AD103
GA102
GPU Variant
GN21-X11
GA102-220-A1
Architecture
Ada Lovelace
Ampere
Foundry
TSMC
Samsung
Process Size
5 nm
8 nm
Transistors
45.9 billion
28.3 billion
Die Size
379 mm²
628 mm²
Board Design
TDP
120W
350W
Outputs
Portable Device Dependent
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 12-pin
Suggested PSU
-
750 W
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.3
CUDA
8.9
8.6
Shader Model
6.8
6.8