NVIDIA GeForce RTX 3080 Mobile vs NVIDIA GeForce RTX 4090 Mobile

VS

NVIDIA GeForce RTX 3080 Mobile 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 3080 Mobile 's Advantages

Lower TDP (115W vs 120W)

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

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

11909

GeForce RTX 4090 Mobile +82%

21684

Blender

GeForce RTX 3080 Mobile

3812

GeForce RTX 4090 Mobile +105%

7828

OctaneBench

GeForce RTX 3080 Mobile

408

GeForce RTX 4090 Mobile +76%

722

GTA 5 2160p

GeForce RTX 3080 Mobile

92

GeForce RTX 4090 Mobile +84%

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

GeForce RTX 3080 Mobile

VS

GeForce RTX 4090 Mobile

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

-

Compute Units

-

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

Graphics Processor

GA104

GPU Name

AD103

GA104-775-A1

GPU Variant

GN21-X11

Ampere

Architecture

Ada Lovelace

Samsung

Foundry

TSMC

8 nm

Process Size

4 nm

17.4 billion

Transistors

45.9 billion

392 mm²

Die Size

379 mm²

Board Design

115W

TDP

120W

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

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

6.7

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