AMD Radeon HD 6650M vs AMD Radeon HD 6770M Mac Edition

VS

AMD Radeon HD 6650M

AMD Radeon HD 6770M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6650M and 512MB VRAM Radeon HD 6770M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6650M 's Advantages

More VRAM (1024GB vs 512GB)

AMD Radeon HD 6770M Mac Edition 's Advantages

Larger VRAM bandwidth (57.60GB/s vs 25.60GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6650M

0.576 TFLOPS

Radeon HD 6770M Mac Edition +20%

0.696 TFLOPS

Radeon HD 6650M

VS

Radeon HD 6770M Mac Edition

Graphics Card

Jan 2011

Release Date

Jan 2011

Vancouver

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

57.60GB/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

4.800 GPixel/s

Pixel Rate

5.800 GPixel/s

14.40 GTexel/s

Texture Rate

17.40 GTexel/s

-

576.0 GFLOPS

FP32 (float)

696.0 GFLOPS

-

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

Whistler

Whistler LE (216-0810028)

GPU Variant

Whistler XT (216-0810001)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

0.716 billion

118 mm²

Die Size

104 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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