AMD Radeon HD 6770M Mac Edition vs AMD Radeon HD 7670A

VS

AMD Radeon HD 6770M Mac Edition

AMD Radeon HD 7670A

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 1024MB VRAM Radeon HD 7670A 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 45W)

AMD Radeon HD 7670A 's Advantages

Released 1 years late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 57.60GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition +20%

0.696 TFLOPS

Radeon HD 7670A

0.576 TFLOPS

Radeon HD 6770M Mac Edition

VS

Radeon HD 7670A

Graphics Card

Jan 2011

Release Date

Jan 2012

Vancouver

Generation

All-In-One

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

900 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

57.60GB/s

Bandwidth

64.00GB/s

Render Config

6

Compute Units

6

-

480

Shading Units

480

24

TMUs

24

8

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

4.800 GPixel/s

17.40 GTexel/s

Texture Rate

14.40 GTexel/s

-

696.0 GFLOPS

FP32 (float)

576.0 GFLOPS

-

Board Design

35W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

Turks

Whistler XT (216-0810001)

GPU Variant

Turks XT (215-0803000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

0.716 billion

104 mm²

Die Size

118 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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