AMD Radeon R9 M390X vs AMD Radeon HD 6550M

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 1024MB VRAM Radeon HD 6550M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 4 years and 6 months late

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1648 additional rendering cores

AMD Radeon HD 6550M 's Advantages

Lower TDP (26W vs 75W)

Score

Benchmark

FP32 (float)

Radeon R9 M390X +516%

2.961 TFLOPS

Radeon HD 6550M

0.48 TFLOPS

Radeon R9 M390X

VS

Radeon HD 6550M

Graphics Card

May 2015

Release Date

Nov 2010

Crystal System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-II

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

32

Compute Units

5

2048

Shading Units

400

128

TMUs

20

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

23.14 GPixel/s

Pixel Rate

4.800 GPixel/s

92.54 GTexel/s

Texture Rate

12.00 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

480.0 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Graphics Processor

Amethyst

GPU Name

Lexington

Amethyst XT

GPU Variant

-

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

2.154 billion

366 mm²

Die Size

334 mm²

Board Design

75W

TDP

26W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

5.0

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