AMD Radeon HD 6770M Mac Edition vs ATI Mobility Radeon HD 3470

VS

AMD Radeon HD 6770M Mac Edition

ATI Mobility Radeon HD 3470

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 256MB VRAM Mobility Radeon HD 3470 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

Released 3 years late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (57.60GB/s vs 6.400GB/s)

440 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition +1188%

0.696 TFLOPS

Mobility Radeon HD 3470

0.054 TFLOPS

Radeon HD 6770M Mac Edition

VS

Mobility Radeon HD 3470

Graphics Card

Jan 2011

Release Date

Jan 2008

Vancouver

Generation

M8x

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-II

Clock Speeds

-

900 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

57.60GB/s

Bandwidth

6.400GB/s

Render Config

6

Compute Units

2

-

480

Shading Units

40

24

TMUs

4

8

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

2.720 GPixel/s

17.40 GTexel/s

Texture Rate

2.720 GTexel/s

-

696.0 GFLOPS

FP32 (float)

54.40 GFLOPS

-

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Whistler

GPU Name

M82

Whistler XT (216-0810001)

GPU Variant

M82-ME XT (216-0707009)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.181 billion

104 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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