AMD Radeon R9 M385X vs AMD Radeon HD 6970M Rebrand

VS

AMD Radeon R9 M385X

AMD Radeon HD 6970M Rebrand

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385X and 1024MB VRAM Radeon HD 6970M Rebrand 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 4 months late

Boost Clock1100MHz

More VRAM (4GB vs 1024GB)

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

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M385X +53%

1.971 TFLOPS

Radeon HD 6970M Rebrand

1.28 TFLOPS

Radeon R9 M385X

VS

Radeon HD 6970M Rebrand

Graphics Card

May 2015

Release Date

Jan 2011

Gem System

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

1000 MHz

Base Clock

-

1100 MHz

Boost Clock

-

1200 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

76.80GB/s

Bandwidth

64.00GB/s

Render Config

14

Compute Units

10

-

896

Shading Units

800

56

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.60 GPixel/s

Pixel Rate

12.80 GPixel/s

61.60 GTexel/s

Texture Rate

32.00 GTexel/s

-

1.971 TFLOPS

FP32 (float)

1280 GFLOPS

123.2 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Strato

GPU Name

Broadway

Strato XT

GPU Variant

Broadway XT

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

1.04 billion

160 mm²

Die Size

166 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.2.170

Vulkan

N/A

-

6.5

Shader Model

5.0

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