AMD Radeon R9 M390 Mac Edition vs Intel Iris Xe MAX Graphics

VS

AMD Radeon R9 M390 Mac Edition

Intel Iris Xe MAX Graphics

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 4GB VRAM Iris Xe MAX Graphics to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390 Mac Edition 's Advantages

Larger VRAM bandwidth (174.7GB/s vs 68.26GB/s)

256 additional rendering cores

Intel Iris Xe MAX Graphics 's Advantages

Released 5 years and 5 months late

Boost Clock1650MHz

More VRAM (4GB vs 2GB)

Lower TDP (25W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition

1.962 TFLOPS

Iris Xe MAX Graphics +29%

2.534 TFLOPS

Radeon R9 M390 Mac Edition

VS

Iris Xe MAX Graphics

Graphics Card

May 2015

Release Date

Oct 2020

Crystal System

Generation

HD Graphics-M

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

300 MHz

-

Boost Clock

1650 MHz

1365 MHz

Memory Clock

2133 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

LPDDR4X

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

68.26GB/s

Render Config

16

Compute Units

-

1024

Shading Units

768

64

TMUs

48

32

ROPs

24

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

30.66 GPixel/s

Pixel Rate

39.60 GPixel/s

61.31 GTexel/s

Texture Rate

79.20 GTexel/s

-

FP16 (half)

5.069 TFLOPS

1.962 TFLOPS

FP32 (float)

2.534 TFLOPS

122.6 GFLOPS

FP64 (double)

633.6 GFLOPS

Board Design

80W

TDP

25W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

DG1

Pitcairn PRO (215-0828062)

GPU Variant

-

GCN 1.0

Architecture

Generation 12.1

TSMC

Foundry

Intel

28 nm

Process Size

10 nm

2.8 billion

Transistors

Unknown

212 mm²

Die Size

95 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

5.1

Shader Model

6.4

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