NVIDIA GeForce RTX 4090 Mobile vs NVIDIA GeForce RTX 3080 Mobile

VS

NVIDIA GeForce RTX 4090 Mobile

NVIDIA GeForce RTX 3080 Mobile

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Mobile and 8GB VRAM GeForce RTX 3080 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 4090 Mobile +73%

32.98 TFLOPS

GeForce RTX 3080 Mobile

18.98 TFLOPS

3DMark Time Spy

GeForce RTX 4090 Mobile +80%

21586

GeForce RTX 3080 Mobile

11987

Blender

GeForce RTX 4090 Mobile +129%

7692

GeForce RTX 3080 Mobile

3357

OctaneBench

GeForce RTX 4090 Mobile +75%

714

GeForce RTX 3080 Mobile

407

GTA 5 2160p

GeForce RTX 4090 Mobile +97%

170

GeForce RTX 3080 Mobile

86

GTA 5 1440p

GeForce RTX 4090 Mobile +84%

170

GeForce RTX 3080 Mobile

92

GTA 5 1080p

GeForce RTX 4090 Mobile +9%

180

GeForce RTX 3080 Mobile

164

GeForce RTX 4090 Mobile

VS

GeForce RTX 3080 Mobile

Graphics Card

Jan 2023

Release Date

Jan 2021

GeForce 40 Mobile

Generation

GeForce 30 Mobile

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1335 MHz

Base Clock

1110 MHz

1695 MHz

Boost Clock

1545 MHz

2250 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

448.0GB/s

Render Config

-

76

SM Count

48

9728

Shading Units

6144

304

TMUs

192

112

ROPs

96

304

Tensor Cores

192

76

RT Cores

48

128 KB (per SM)

L1 Cache

128 KB (per SM)

64 MB

L2 Cache

4 MB

-

Theoretical Performance

189.8 GPixel/s

Pixel Rate

148.3 GPixel/s

515.3 GTexel/s

Texture Rate

296.6 GTexel/s

32.98 TFLOPS

FP16 (half)

18.98 TFLOPS

32.98 TFLOPS

FP32 (float)

18.98 TFLOPS

515.3 GFLOPS

FP64 (double)

296.6 GFLOPS

Board Design

80-150W

TDP

115W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD103

GPU Name

GA104

GN21-X11

GPU Variant

GA104-775-A1

Ada Lovelace

Architecture

Ampere

TSMC

Foundry

Samsung

5 nm

Process Size

8 nm

45.9 billion

Transistors

17.4 billion

379 mm²

Die Size

392 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

8.9

CUDA

8.6

6.8

Shader Model

6.6

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