AMD Radeon HD 6770M Mac Edition vs ATI Mobility Radeon HD 5450

VS

AMD Radeon HD 6770M Mac Edition

ATI Mobility Radeon HD 5450

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6770M Mac Edition and 1024MB VRAM Mobility Radeon HD 5450 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 1 years late

Larger VRAM bandwidth (57.60GB/s vs 12.80GB/s)

400 additional rendering cores

ATI Mobility Radeon HD 5450 's Advantages

More VRAM (1024GB vs 512GB)

Lower TDP (11W vs 35W)

Score

Benchmark

FP32 (float)

Radeon HD 6770M Mac Edition +544%

0.696 TFLOPS

Mobility Radeon HD 5450

0.108 TFLOPS

Radeon HD 6770M Mac Edition

VS

Mobility Radeon HD 5450

Graphics Card

Jan 2011

Release Date

Jan 2010

Vancouver

Generation

Manhattan

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

57.60GB/s

Bandwidth

12.80GB/s

Render Config

6

Compute Units

1

-

480

Shading Units

80

24

TMUs

8

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

5.800 GPixel/s

Pixel Rate

2.700 GPixel/s

17.40 GTexel/s

Texture Rate

5.400 GTexel/s

-

696.0 GFLOPS

FP32 (float)

108.0 GFLOPS

-

Board Design

35W

TDP

11W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

Park

Whistler XT (216-0810001)

GPU Variant

Park PRO (216-0774007)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

0.292 billion

104 mm²

Die Size

59 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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