AMD Radeon RX 470 Mobile vs ATI Mobility Radeon HD 3870

VS

AMD Radeon RX 470 Mobile

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 470 Mobile and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 470 Mobile 's Advantages

Released 8 years and 2 months late

Boost Clock1074MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (224.0GB/s vs 54.40GB/s)

1728 additional rendering cores

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 85W)

Score

Benchmark

FP32 (float)

Radeon RX 470 Mobile +942%

4.399 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon RX 470 Mobile

VS

Mobility Radeon HD 3870

Graphics Card

Aug 2016

Release Date

Jun 2008

Mobility Radeon

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

926 MHz

Base Clock

-

1074 MHz

Boost Clock

-

1750 MHz

Memory Clock

850 MHz

Memory

8GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

224.0GB/s

Bandwidth

54.40GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.37 GPixel/s

Pixel Rate

10.56 GPixel/s

137.5 GTexel/s

Texture Rate

10.56 GTexel/s

4.399 TFLOPS

FP16 (half)

-

4.399 TFLOPS

FP32 (float)

422.4 GFLOPS

274.9 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

85W

TDP

55W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Ellesmere

GPU Name

M88

Ellesmere PRO

GPU Variant

-

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

5.7 billion

Transistors

0.666 billion

232 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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