AMD Radeon R9 M390 Mac Edition vs ATI Mobility Radeon HD 4670 Mac Edition

VS

AMD Radeon R9 M390 Mac Edition

ATI Mobility Radeon HD 4670 Mac Edition

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition 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 M390 Mac Edition 's Advantages

Released 5 years and 8 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (174.7GB/s vs 25.28GB/s)

704 additional rendering cores

ATI Mobility Radeon HD 4670 Mac Edition 's Advantages

Lower TDP (35W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M390 Mac Edition +351%

1.962 TFLOPS

Mobility Radeon HD 4670 Mac Edition

0.435 TFLOPS

Radeon R9 M390 Mac Edition

VS

Mobility Radeon HD 4670 Mac Edition

Graphics Card

May 2015

Release Date

Sep 2009

Crystal System

Generation

M9x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

1365 MHz

Memory Clock

790 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

174.7GB/s

Bandwidth

25.28GB/s

Render Config

16

Compute Units

4

-

1024

Shading Units

320

64

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

30.66 GPixel/s

Pixel Rate

5.440 GPixel/s

61.31 GTexel/s

Texture Rate

21.76 GTexel/s

-

1.962 TFLOPS

FP32 (float)

435.2 GFLOPS

122.6 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

M96

Pitcairn PRO (215-0828062)

GPU Variant

M96 XT (216-0729051)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.514 billion

212 mm²

Die Size

146 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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