AMD Radeon HD 8970M vs AMD Radeon R9 M270X

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon HD 8970M and 2GB VRAM Radeon R9 M270X 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)

Larger VRAM bandwidth (153.6GB/s vs 88.00GB/s)

512 additional rendering cores

AMD Radeon R9 M270X 's Advantages

Released 1 years and 9 months late

Boost Clock has increased by 11% (1000MHz vs 900MHz)

Score

Benchmark

FP32 (float)

Radeon HD 8970M +50%

2.304 TFLOPS

Radeon R9 M270X

1.536 TFLOPS

Radeon HD 8970M

VS

Radeon R9 M270X

Graphics Card

May 2013

Release Date

Feb 2015

Solar System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

850 MHz

Base Clock

900 MHz

Boost Clock

1000 MHz

1200 MHz

Memory Clock

1375 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

88.00GB/s

Render Config

-

SM Count

-

20

Compute Units

12

1280

Shading Units

768

80

TMUs

48

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

16.00 GPixel/s

72.00 GTexel/s

Texture Rate

48.00 GTexel/s

-

FP16 (half)

-

2.304 TFLOPS

FP32 (float)

1.536 TFLOPS

144.0 GFLOPS

FP64 (double)

96.00 GFLOPS

Graphics Processor

Neptune

GPU Name

Saturn

Neptune XT (216-0847000)

GPU Variant

Saturn PRO (216-0843044)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

2.08 billion

212 mm²

Die Size

160 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2.170

-

CUDA

-

5.1

Shader Model

6.5

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