NVIDIA GeForce RTX 4090 Max-Q vs AMD Radeon R9 M390 Mac Edition

VS

NVIDIA GeForce RTX 4090 Max-Q

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 2GB VRAM Radeon R9 M390 Mac Edition 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 7 years and 8 months late

Boost Clock1455MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 174.7GB/s)

8704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +1342%

28.31 TFLOPS

Radeon R9 M390 Mac Edition

1.962 TFLOPS

GeForce RTX 4090 Max Q

VS

Radeon R9 M390 Mac Edition

Graphics Card

Jan 2023

Release Date

May 2015

GeForce 40 Mobile

Generation

Crystal System

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

930 MHz

Base Clock

-

1455 MHz

Boost Clock

-

1750 MHz

Memory Clock

1365 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

16

76

SM Count

-

9728

Shading Units

1024

304

TMUs

64

112

ROPs

32

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

512 KB

-

Theoretical Performance

163.0 GPixel/s

Pixel Rate

30.66 GPixel/s

442.3 GTexel/s

Texture Rate

61.31 GTexel/s

28.31 TFLOPS

FP16 (half)

-

28.31 TFLOPS

FP32 (float)

1.962 TFLOPS

442.3 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

80W

TDP

80W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD103

GPU Name

Pitcairn

GN21-X11

GPU Variant

Pitcairn PRO (215-0828062)

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

45.9 billion

Transistors

2.8 billion

379 mm²

Die Size

212 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

5.1

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