NVIDIA GeForce RTX 4090 Max-Q vs AMD Radeon Pro 455

VS

NVIDIA GeForce RTX 4090 Max-Q

AMD Radeon Pro 455

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 4090 Max Q and 2GB VRAM Radeon Pro 455 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 6 years and 3 months late

Boost Clock1455MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 81.28GB/s)

8960 additional rendering cores

AMD Radeon Pro 455 's Advantages

Lower TDP (35W vs 80W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Max Q +2056%

28.31 TFLOPS

Radeon Pro 455

1.313 TFLOPS

GeForce RTX 4090 Max Q

VS

Radeon Pro 455

Graphics Card

Jan 2023

Release Date

Oct 2016

GeForce 40 Mobile

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

930 MHz

Base Clock

-

1455 MHz

Boost Clock

-

1750 MHz

Memory Clock

1270 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

81.28GB/s

Render Config

-

Compute Units

12

76

SM Count

-

9728

Shading Units

768

304

TMUs

48

112

ROPs

16

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

1024 KB

-

Theoretical Performance

163.0 GPixel/s

Pixel Rate

13.68 GPixel/s

442.3 GTexel/s

Texture Rate

41.04 GTexel/s

28.31 TFLOPS

FP16 (half)

1313 GFLOPS

28.31 TFLOPS

FP32 (float)

1313 GFLOPS

442.3 GFLOPS

FP64 (double)

82.08 GFLOPS

Board Design

80W

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD103

GPU Name

Baffin

GN21-X11

GPU Variant

Baffin PRO

Ada Lovelace

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

4 nm

Process Size

14 nm

45.9 billion

Transistors

3 billion

379 mm²

Die Size

123 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

6.4

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