AMD Radeon HD 8870M vs AMD Radeon RX 560X Mobile

VS

AMD Radeon HD 8870M

AMD Radeon RX 560X Mobile

We compared two Mobile platform GPUs: 2GB VRAM Radeon HD 8870M and 4GB VRAM Radeon RX 560X Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8870M 's Advantages

Boost Clock775MHz

AMD Radeon RX 560X Mobile 's Advantages

Released 5 years and 9 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (112.0GB/s vs 72.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870M

0.992 TFLOPS

Radeon RX 560X Mobile +120%

2.192 TFLOPS

Radeon HD 8870M

VS

Radeon RX 560X Mobile

Graphics Card

Apr 2013

Release Date

Jan 2019

Solar System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

725 MHz

Base Clock

-

775 MHz

Boost Clock

-

1125 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

72.00GB/s

Bandwidth

112.0GB/s

Render Config

10

Compute Units

14

-

640

Shading Units

896

40

TMUs

56

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

12.40 GPixel/s

Pixel Rate

19.57 GPixel/s

31.00 GTexel/s

Texture Rate

68.49 GTexel/s

-

FP16 (half)

2.192 TFLOPS

992.0 GFLOPS

FP32 (float)

2.192 TFLOPS

62.00 GFLOPS

FP64 (double)

137.0 GFLOPS

Board Design

Unknown

TDP

65W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Venus

GPU Name

Polaris 31

Venus XT (216-0846000)

GPU Variant

Polaris 31 MXL

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

3 billion

123 mm²

Die Size

123 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

6.4

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