ATI Mobility Radeon HD 4650 vs AMD Radeon HD 6770M Mac Edition

VS

ATI Mobility Radeon HD 4650

AMD Radeon HD 6770M Mac Edition

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4650 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 6770M Mac Edition 's Advantages

Released 2 years late

Larger VRAM bandwidth (57.60GB/s vs 19.20GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4650

0.32 TFLOPS

Radeon HD 6770M Mac Edition +117%

0.696 TFLOPS

Mobility Radeon HD 4650

VS

Radeon HD 6770M Mac Edition

Graphics Card

Jan 2009

Release Date

Jan 2011

M9x

Generation

Vancouver

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

600 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

19.20GB/s

Bandwidth

57.60GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

480

32

TMUs

24

8

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

4.000 GPixel/s

Pixel Rate

5.800 GPixel/s

16.00 GTexel/s

Texture Rate

17.40 GTexel/s

-

320.0 GFLOPS

FP32 (float)

696.0 GFLOPS

-

Board Design

35W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

M96

GPU Name

Whistler

-

GPU Variant

Whistler XT (216-0810001)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

0.716 billion

146 mm²

Die Size

104 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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