AMD Radeon R5 M445 vs AMD Radeon HD 8870M

VS

AMD Radeon R5 M445

AMD Radeon HD 8870M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R5 M445 and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M445 's Advantages

Released 2 years and 9 months late

More VRAM (4GB vs 2GB)

AMD Radeon HD 8870M 's Advantages

Boost Clock775MHz

Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M445

0.706 TFLOPS

Radeon HD 8870M +40%

0.992 TFLOPS

Radeon R5 M445

VS

Radeon HD 8870M

Graphics Card

Jan 2016

Release Date

Apr 2013

Gem System

Generation

Solar System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

725 MHz

-

Boost Clock

775 MHz

1000 MHz

Memory Clock

1125 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

32.00GB/s

Bandwidth

72.00GB/s

Render Config

6

Compute Units

10

-

384

Shading Units

640

24

TMUs

40

8

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

7.360 GPixel/s

Pixel Rate

12.40 GPixel/s

22.08 GTexel/s

Texture Rate

31.00 GTexel/s

-

706.6 GFLOPS

FP32 (float)

992.0 GFLOPS

-

FP64 (double)

62.00 GFLOPS

Board Design

Unknown

TDP

Unknown

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Graphics Processor

Meso

GPU Name

Venus

Meso XT (216-0864018)

GPU Variant

Venus XT (216-0846000)

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.55 billion

Transistors

1.5 billion

125 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

6.5

Shader Model

6.5 (5.1)

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