AMD Radeon HD 6670A vs ATI Mobility Radeon HD 4670 Mac Edition

VS

AMD Radeon HD 6670A

ATI Mobility Radeon HD 4670 Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6670A and 256MB VRAM Mobility Radeon HD 4670 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670A 's Advantages

Released 1 years and 7 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 25.28GB/s)

160 additional rendering cores

ATI Mobility Radeon HD 4670 Mac Edition 's Advantages

Lower TDP (35W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 6670A +32%

0.576 TFLOPS

Mobility Radeon HD 4670 Mac Edition

0.435 TFLOPS

Radeon HD 6670A

VS

Mobility Radeon HD 4670 Mac Edition

Graphics Card

Apr 2011

Release Date

Sep 2009

All-In-One

Generation

M9x

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1000 MHz

Memory Clock

790 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

25.28GB/s

Render Config

6

Compute Units

4

-

480

Shading Units

320

24

TMUs

32

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

5.440 GPixel/s

14.40 GTexel/s

Texture Rate

21.76 GTexel/s

-

576.0 GFLOPS

FP32 (float)

435.2 GFLOPS

-

Board Design

45W

TDP

35W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Turks

GPU Name

M96

Turks XT (215-0803000)

GPU Variant

M96 XT (216-0729051)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.514 billion

118 mm²

Die Size

146 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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