NVIDIA GeForce RTX 4090 Max-Q vs NVIDIA GeForce RTX 3080 Max Q

VS

NVIDIA GeForce RTX 4090 Max-Q NVIDIA GeForce RTX 3080 Max Q

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

Main Differences

NVIDIA GeForce RTX 4090 Max-Q 's Advantages

Released 2 years late

Boost Clock has increased by 17% (1455MHz vs 1245MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (448.0GB/s vs 384.0GB/s)

3584 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +85%

28.31 TFLOPS

GeForce RTX 3080 Max Q

15.3 TFLOPS

GeForce RTX 4090 Max Q

VS

GeForce RTX 3080 Max Q

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

930 MHz

Base Clock

780 MHz

1455 MHz

Boost Clock

1245 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

384.0GB/s

Render Config

76

SM Count

48

-

Compute Units

-

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

163.0 GPixel/s

Pixel Rate

119.5 GPixel/s

442.3 GTexel/s

Texture Rate

239.0 GTexel/s

28.31 TFLOPS

FP16 (half)

15.30 TFLOPS

28.31 TFLOPS

FP32 (float)

15.30 TFLOPS

442.3 GFLOPS

FP64 (double)

239.0 GFLOPS

Graphics Processor

AD103

GPU Name

GA104

GN21-X11

GPU Variant

GA104-775-A1

Ada Lovelace

Architecture

Ampere

TSMC

Foundry

Samsung

4 nm

Process Size

8 nm

45.9 billion

Transistors

17.4 billion

379 mm²

Die Size

392 mm²

Board Design

80W

TDP

80W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

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

8.9

CUDA

8.6

6.7

Shader Model

6.6

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