AMD Radeon HD 6770M Mac Edition vs AMD Radeon R7 M445

VS

AMD Radeon HD 6770M Mac Edition

AMD Radeon R7 M445

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 4GB VRAM Radeon R7 M445 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

Larger VRAM bandwidth (57.60GB/s vs 32.00GB/s)

160 additional rendering cores

AMD Radeon R7 M445 's Advantages

Released 5 years and 4 months late

Boost Clock920MHz

More VRAM (4GB vs 512GB)

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition +18%

0.696 TFLOPS

Radeon R7 M445

0.588 TFLOPS

Radeon HD 6770M Mac Edition

VS

Radeon R7 M445

Graphics Card

Jan 2011

Release Date

May 2016

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

780 MHz

-

Boost Clock

920 MHz

900 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

57.60GB/s

Bandwidth

32.00GB/s

Render Config

6

Compute Units

5

-

480

Shading Units

320

24

TMUs

20

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

7.360 GPixel/s

17.40 GTexel/s

Texture Rate

18.40 GTexel/s

-

FP16 (half)

588.8 GFLOPS

696.0 GFLOPS

FP32 (float)

588.8 GFLOPS

-

FP64 (double)

36.80 GFLOPS

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Whistler

GPU Name

Meso

Whistler XT (216-0810001)

GPU Variant

Meso PRO (216-0864032)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.55 billion

104 mm²

Die Size

125 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5

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