AMD Radeon HD 6770M Mac Edition vs AMD Radeon RX 550 Mobile

VS

AMD Radeon HD 6770M Mac Edition

AMD Radeon RX 550 Mobile

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 2GB VRAM Radeon RX 550 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6770M Mac Edition 's Advantages

Lower TDP (35W vs 50W)

AMD Radeon RX 550 Mobile 's Advantages

Released 6 years and 6 months late

Boost Clock1287MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 57.60GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition

0.696 TFLOPS

Radeon RX 550 Mobile +136%

1.647 TFLOPS

Radeon HD 6770M Mac Edition

VS

Radeon RX 550 Mobile

Graphics Card

Jan 2011

Release Date

Jul 2017

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1287 MHz

900 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

57.60GB/s

Bandwidth

96.00GB/s

Render Config

6

Compute Units

10

-

480

Shading Units

640

24

TMUs

40

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

20.59 GPixel/s

17.40 GTexel/s

Texture Rate

51.48 GTexel/s

-

FP16 (half)

1.647 TFLOPS

696.0 GFLOPS

FP32 (float)

1.647 TFLOPS

-

FP64 (double)

103.0 GFLOPS

Board Design

35W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Whistler

GPU Name

Lexa

Whistler XT (216-0810001)

GPU Variant

Lexa PRO (215-0904018)

TeraScale 2

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

0.716 billion

Transistors

2.2 billion

104 mm²

Die Size

103 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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