AMD Radeon R9 M395X Mac Edition vs AMD Radeon RX 7900M

VS

AMD Radeon R9 M395X Mac Edition

AMD Radeon RX 7900M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M395X Mac Edition and 16GB VRAM Radeon RX 7900M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900M 's Advantages

Released 8 years and 5 months late

Boost Clock2090MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 174.7GB/s)

2560 additional rendering cores

Lower TDP (180W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M395X Mac Edition

3.723 TFLOPS

Radeon RX 7900M +934%

38.52 TFLOPS

Radeon R9 M395X Mac Edition

VS

Radeon RX 7900M

Graphics Card

May 2015

Release Date

Oct 2023

Crystal System

Generation

Navi Mobile

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2090 MHz

1365 MHz

Memory Clock

2250 MHz

Memory

4GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

174.7GB/s

Bandwidth

576.0GB/s

Render Config

32

Compute Units

72

-

2048

Shading Units

4608

128

TMUs

288

32

ROPs

192

-

RT Cores

72

16 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

-

L3 Cache

64 MB

Theoretical Performance

29.09 GPixel/s

Pixel Rate

401.3 GPixel/s

116.4 GTexel/s

Texture Rate

601.9 GTexel/s

3.723 TFLOPS

FP16 (half)

77.05 TFLOPS

3.723 TFLOPS

FP32 (float)

38.52 TFLOPS

232.7 GFLOPS

FP64 (double)

1204 GFLOPS

Board Design

250W

TDP

180W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Amethyst

GPU Name

Navi 31

Amethyst XT

GPU Variant

Navi 31

GCN 3.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

5 billion

Transistors

57.7 billion

366 mm²

Die Size

529 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.2

1.2

Vulkan

1.3

-

6.3

Shader Model

6.7

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