ATI Mobility Radeon HD 4670 Mac Edition vs AMD Radeon R9 M390X

VS

ATI Mobility Radeon HD 4670 Mac Edition

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 4670 Mac Edition and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 Mac Edition 's Advantages

Lower TDP (35W vs 75W)

AMD Radeon R9 M390X 's Advantages

Released 5 years and 8 months late

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (160.0GB/s vs 25.28GB/s)

1728 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670 Mac Edition

0.435 TFLOPS

Radeon R9 M390X +580%

2.961 TFLOPS

Mobility Radeon HD 4670 Mac Edition

VS

Radeon R9 M390X

Graphics Card

Sep 2009

Release Date

May 2015

M9x

Generation

Crystal System

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

790 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

4GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.28GB/s

Bandwidth

160.0GB/s

Render Config

4

Compute Units

32

-

320

Shading Units

2048

32

TMUs

128

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

5.440 GPixel/s

Pixel Rate

23.14 GPixel/s

21.76 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

435.2 GFLOPS

FP32 (float)

2.961 TFLOPS

-

FP64 (double)

185.1 GFLOPS

Board Design

35W

TDP

75W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M96

GPU Name

Amethyst

M96 XT (216-0729051)

GPU Variant

Amethyst XT

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

5 billion

146 mm²

Die Size

366 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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