AMD Radeon R9 M385 vs ATI Mobility Radeon HD 4670 Mac Edition

VS

AMD Radeon R9 M385

ATI Mobility Radeon HD 4670 Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385 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 R9 M385 's Advantages

Released 5 years and 8 months late

Boost Clock1000MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (76.80GB/s vs 25.28GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M385 +311%

1.792 TFLOPS

Mobility Radeon HD 4670 Mac Edition

0.435 TFLOPS

Radeon R9 M385

VS

Mobility Radeon HD 4670 Mac Edition

Graphics Card

May 2015

Release Date

Sep 2009

Gem System

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

900 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1200 MHz

Memory Clock

790 MHz

Memory

4GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

76.80GB/s

Bandwidth

25.28GB/s

Render Config

14

Compute Units

4

-

896

Shading Units

320

56

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

5.440 GPixel/s

56.00 GTexel/s

Texture Rate

21.76 GTexel/s

-

1.792 TFLOPS

FP32 (float)

435.2 GFLOPS

112.0 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

35W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Strato

GPU Name

M96

Strato XT

GPU Variant

M96 XT (216-0729051)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.514 billion

160 mm²

Die Size

146 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2.170

Vulkan

N/A

-

6.5

Shader Model

4.1

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