AMD Radeon HD 8870M vs AMD Radeon RX Vega M GH

VS

AMD Radeon HD 8870M

AMD Radeon RX Vega M GH

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

Main Differences

AMD Radeon RX Vega M GH 's Advantages

Released 4 years and 10 months late

Boost Clock has increased by 54% (1190MHz vs 775MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (204.8GB/s vs 72.00GB/s)

896 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8870M

0.992 TFLOPS

Radeon RX Vega M GH +268%

3.656 TFLOPS

Radeon HD 8870M

VS

Radeon RX Vega M GH

Graphics Card

Apr 2013

Release Date

Feb 2018

Solar System

Generation

Vega

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

IGP

Clock Speeds

725 MHz

Base Clock

1063 MHz

775 MHz

Boost Clock

1190 MHz

1125 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

1024bit

72.00GB/s

Bandwidth

204.8GB/s

Render Config

10

Compute Units

24

-

640

Shading Units

1536

40

TMUs

96

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

12.40 GPixel/s

Pixel Rate

76.16 GPixel/s

31.00 GTexel/s

Texture Rate

114.2 GTexel/s

-

FP16 (half)

3.656 TFLOPS

992.0 GFLOPS

FP32 (float)

3.656 TFLOPS

62.00 GFLOPS

FP64 (double)

228.5 GFLOPS

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Venus

GPU Name

Polaris 22

Venus XT (216-0846000)

GPU Variant

VegaM XT (C7398773)

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

5 billion

123 mm²

Die Size

208 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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