AMD Radeon HD 6870M vs AMD Radeon R9 M470X

VS

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 4GB VRAM Radeon R9 M470X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M470X 's Advantages

Released 5 years and 4 months late

Boost Clock1100MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (76.80GB/s vs 64.00GB/s)

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870M

1.08 TFLOPS

Radeon R9 M470X +82%

1.971 TFLOPS

Radeon HD 6870M

VS

Radeon R9 M470X

Graphics Card

Jan 2011

Release Date

May 2016

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1100 MHz

1000 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

76.80GB/s

Render Config

-

SM Count

-

10

Compute Units

14

800

Shading Units

896

40

TMUs

56

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

10.80 GPixel/s

Pixel Rate

17.60 GPixel/s

27.00 GTexel/s

Texture Rate

61.60 GTexel/s

-

FP16 (half)

-

1080 GFLOPS

FP32 (float)

1.971 TFLOPS

-

FP64 (double)

123.2 GFLOPS

Graphics Processor

Granville

GPU Name

Emerald

Granville XT (216-0769024)

GPU Variant

Emerald XT

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

2.08 billion

166 mm²

Die Size

160 mm²

Board Design

50W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2.170

-

CUDA

-

5.0

Shader Model

6.5

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