Home GPU Comparison NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce RTX 4090 Mobile

NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce RTX 4090 Mobile

We compared two Mobile platform GPUs: 8GB VRAM GeForce RTX 3080 Mobile and 16GB VRAM GeForce RTX 4090 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Mobile 's Advantages
Released 2 years late
Boost Clock has increased by 10% (1695MHz vs 1545MHz)
More VRAM (16GB vs 8GB)
Larger VRAM bandwidth (576.0GB/s vs 448.0GB/s)
3584 additional rendering cores
Lower TDP (80W vs 115W)

Score

Benchmark

FP32 (float)
GeForce RTX 3080 Mobile
18.98 TFLOPS
GeForce RTX 4090 Mobile +73%
32.98 TFLOPS
3DMark Time Spy
GeForce RTX 3080 Mobile
11987
GeForce RTX 4090 Mobile +80%
21586
Blender
GeForce RTX 3080 Mobile
3357
GeForce RTX 4090 Mobile +129%
7692
OctaneBench
GeForce RTX 3080 Mobile
407
GeForce RTX 4090 Mobile +75%
714
GTA 5 2160p
GeForce RTX 3080 Mobile
86
GeForce RTX 4090 Mobile +97%
170
GTA 5 1440p
GeForce RTX 3080 Mobile
92
GeForce RTX 4090 Mobile +84%
170
GTA 5 1080p
GeForce RTX 3080 Mobile
164
GeForce RTX 4090 Mobile +9%
180
VS

Graphics Card

Jan 2021
Release Date
Jan 2023
GeForce 30 Mobile
Generation
GeForce 40 Mobile
Mobile
Type
Mobile
PCIe 4.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

1110 MHz
Base Clock
1335 MHz
1545 MHz
Boost Clock
1695 MHz
1750 MHz
Memory Clock
2250 MHz

Memory

8GB
Memory Size
16GB
GDDR6
Memory Type
GDDR6
256bit
Memory Bus
256bit
448.0GB/s
Bandwidth
576.0GB/s

Render Config

-
-
-
48
SM Count
76
6144
Shading Units
9728
192
TMUs
304
96
ROPs
112
192
Tensor Cores
304
48
RT Cores
76
128 KB (per SM)
L1 Cache
128 KB (per SM)
4 MB
L2 Cache
64 MB
-
-
-

Theoretical Performance

148.3 GPixel/s
Pixel Rate
189.8 GPixel/s
296.6 GTexel/s
Texture Rate
515.3 GTexel/s
18.98 TFLOPS
FP16 (half)
32.98 TFLOPS
18.98 TFLOPS
FP32 (float)
32.98 TFLOPS
296.6 GFLOPS
FP64 (double)
515.3 GFLOPS

Board Design

115W
TDP
80-150W
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
None

Graphics Processor

GA104
GPU Name
AD103
GA104-775-A1
GPU Variant
GN21-X11
Ampere
Architecture
Ada Lovelace
Samsung
Foundry
TSMC
8 nm
Process Size
5 nm
17.4 billion
Transistors
45.9 billion
392 mm²
Die Size
379 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.3
8.6
CUDA
8.9
6.6
Shader Model
6.8

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