AMD Radeon HD 6670A vs AMD Radeon R9 M385X

VS

AMD Radeon HD 6670A

AMD Radeon R9 M385X

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6670A and 4GB VRAM Radeon R9 M385X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385X 's Advantages

Released 4 years and 1 months late

Boost Clock1100MHz

More VRAM (4GB vs 1024GB)

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

416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6670A

0.576 TFLOPS

Radeon R9 M385X +242%

1.971 TFLOPS

Radeon HD 6670A

VS

Radeon R9 M385X

Graphics Card

Apr 2011

Release Date

May 2015

All-In-One

Generation

Gem System

Mobile

Type

Mobile

MXM-A (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

6

Compute Units

14

-

480

Shading Units

896

24

TMUs

56

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

17.60 GPixel/s

14.40 GTexel/s

Texture Rate

61.60 GTexel/s

-

576.0 GFLOPS

FP32 (float)

1.971 TFLOPS

-

FP64 (double)

123.2 GFLOPS

Board Design

45W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Graphics Processor

Turks

GPU Name

Strato

Turks XT (215-0803000)

GPU Variant

Strato XT

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

2.08 billion

118 mm²

Die Size

160 mm²

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

-

5.0

Shader Model

6.5

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