AMD Radeon RX 640 Mobile vs AMD Radeon R9 M395 Mac Edition

VS

AMD Radeon RX 640 Mobile AMD Radeon R9 M395 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 640 Mobile and 2GB VRAM Radeon R9 M395 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 640 Mobile 's Advantages

Released 4 years late

Boost Clock1218MHz

Lower TDP (50W vs 250W)

AMD Radeon R9 M395 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 48.00GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon R9 M395 Mac Edition +91%

2.989 TFLOPS

Radeon RX 640 Mobile

VS

Radeon R9 M395 Mac Edition

Graphics Card

May 2019

Release Date

May 2015

Mobility Radeon

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

1082 MHz

Base Clock

-

1218 MHz

Boost Clock

-

1500 MHz

Memory Clock

1365 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

174.7GB/s

Render Config

-

SM Count

-

10

Compute Units

28

640

Shading Units

1792

40

TMUs

112

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

19.49 GPixel/s

Pixel Rate

26.69 GPixel/s

48.72 GTexel/s

Texture Rate

93.41 GTexel/s

1.559 TFLOPS

FP16 (half)

-

1.559 TFLOPS

FP32 (float)

2.989 TFLOPS

97.44 GFLOPS

FP64 (double)

373.6 GFLOPS

Graphics Processor

Polaris 23

GPU Name

Amethyst

Polaris 23 XT

GPU Variant

Amethyst PRO (216-0872004)

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

2.2 billion

Transistors

5 billion

103 mm²

Die Size

366 mm²

Board Design

50W

TDP

250W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.3

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