AMD Radeon R9 M290X Mac Edition vs AMD Radeon HD 8670A

VS

AMD Radeon R9 M290X Mac Edition

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M290X Mac Edition and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M290X Mac Edition 's Advantages

Released 1 years and 9 months late

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (174.7GB/s vs 16.00GB/s)

640 additional rendering cores

AMD Radeon HD 8670A 's Advantages

Lower TDP (45W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R9 M290X Mac Edition +333%

1.997 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

Radeon R9 M290X Mac Edition

VS

Radeon HD 8670A

Graphics Card

Nov 2014

Release Date

Feb 2013

Crystal System

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

850 MHz

Base Clock

-

975 MHz

Boost Clock

-

1365 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

174.7GB/s

Bandwidth

16.00GB/s

Render Config

16

Compute Units

6

-

1024

Shading Units

384

64

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

4.800 GPixel/s

62.40 GTexel/s

Texture Rate

14.40 GTexel/s

-

1.997 TFLOPS

FP32 (float)

460.8 GFLOPS

124.8 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

80W

TDP

45W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

Mars

Pitcairn PRO (215-0828062)

GPU Variant

Mars XT

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

0.95 billion

212 mm²

Die Size

77 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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