AMD Radeon HD 8970M vs AMD Radeon R9 M290X Mac Edition

VS

AMD Radeon HD 8970M

AMD Radeon R9 M290X Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 2GB VRAM Radeon R9 M290X Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8970M 's Advantages

More VRAM (4GB vs 2GB)

256 additional rendering cores

AMD Radeon R9 M290X Mac Edition 's Advantages

Released 1 years and 6 months late

Boost Clock has increased by 8% (975MHz vs 900MHz)

Larger VRAM bandwidth (174.7GB/s vs 153.6GB/s)

Lower TDP (80W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +15%

2.304 TFLOPS

Radeon R9 M290X Mac Edition

1.997 TFLOPS

Radeon HD 8970M

VS

Radeon R9 M290X Mac Edition

Graphics Card

May 2013

Release Date

Nov 2014

Solar System

Generation

Crystal System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

850 MHz

900 MHz

Boost Clock

975 MHz

1200 MHz

Memory Clock

1365 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

174.7GB/s

Render Config

20

Compute Units

16

-

1280

Shading Units

1024

80

TMUs

64

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

31.20 GPixel/s

72.00 GTexel/s

Texture Rate

62.40 GTexel/s

-

2.304 TFLOPS

FP32 (float)

1.997 TFLOPS

144.0 GFLOPS

FP64 (double)

124.8 GFLOPS

Board Design

100W

TDP

80W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Neptune

GPU Name

Pitcairn

Neptune XT (216-0847000)

GPU Variant

Pitcairn PRO (215-0828062)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

2.8 billion

212 mm²

Die Size

212 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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