NVIDIA GeForce RTX 4080 Mobile vs AMD Radeon R9 M395X Mac Edition

VS

NVIDIA GeForce RTX 4080 Mobile

AMD Radeon R9 M395X Mac Edition

We compared two Mobile platform GPUs: 12GB VRAM GeForce RTX 4080 Mobile and 4GB VRAM Radeon R9 M395X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4080 Mobile 's Advantages

Released 7 years and 8 months late

Boost Clock1665MHz

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (432.0GB/s vs 174.7GB/s)

5376 additional rendering cores

Lower TDP (110W vs 250W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 Mobile +563%

24.72 TFLOPS

Radeon R9 M395X Mac Edition

3.723 TFLOPS

GeForce RTX 4080 Mobile

VS

Radeon R9 M395X 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

MXM-B (3.0)

Clock Speeds

1290 MHz

Base Clock

-

1665 MHz

Boost Clock

-

2250 MHz

Memory Clock

1365 MHz

Memory

12GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

256bit

432.0GB/s

Bandwidth

174.7GB/s

Render Config

-

Compute Units

32

58

SM Count

-

7424

Shading Units

2048

232

TMUs

128

80

ROPs

32

232

Tensor Cores

-

58

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

48 MB

L2 Cache

512 KB

-

Theoretical Performance

133.2 GPixel/s

Pixel Rate

29.09 GPixel/s

386.3 GTexel/s

Texture Rate

116.4 GTexel/s

24.72 TFLOPS

FP16 (half)

3.723 TFLOPS

24.72 TFLOPS

FP32 (float)

3.723 TFLOPS

386.3 GFLOPS

FP64 (double)

232.7 GFLOPS

Board Design

110W

TDP

250W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

AD104

GPU Name

Amethyst

GN21-X9

GPU Variant

Amethyst XT

Ada Lovelace

Architecture

GCN 3.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

35.8 billion

Transistors

5 billion

295 mm²

Die Size

366 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

6.3

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