AMD Radeon HD 8550M vs AMD Radeon R9 M390 Mac Edition

VS

AMD Radeon HD 8550M

AMD Radeon R9 M390 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8550M and 2GB VRAM Radeon R9 M390 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8550M 's Advantages

Boost Clock850MHz

AMD Radeon R9 M390 Mac Edition 's Advantages

Released 10 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 14.40GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8550M

0.544 TFLOPS

Radeon R9 M390 Mac Edition +260%

1.962 TFLOPS

Radeon HD 8550M

VS

Radeon R9 M390 Mac Edition

Graphics Card

Jul 2014

Release Date

May 2015

Solar System

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

650 MHz

Base Clock

-

850 MHz

Boost Clock

-

900 MHz

Memory Clock

1365 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

174.7GB/s

Render Config

5

Compute Units

16

-

320

Shading Units

1024

20

TMUs

64

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

6.800 GPixel/s

Pixel Rate

30.66 GPixel/s

17.00 GTexel/s

Texture Rate

61.31 GTexel/s

-

544.0 GFLOPS

FP32 (float)

1.962 TFLOPS

34.00 GFLOPS

FP64 (double)

122.6 GFLOPS

Board Design

Unknown

TDP

80W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Sun

GPU Name

Pitcairn

Sun S3 LE (216-0841036)

GPU Variant

Pitcairn PRO (215-0828062)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.69 billion

Transistors

2.8 billion

56 mm²

Die Size

212 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

1.2

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

5.1

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