AMD Radeon R9 M385 vs AMD Radeon HD 6970M

VS

AMD Radeon R9 M385

AMD Radeon HD 6970M

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385 and 1024MB VRAM Radeon HD 6970M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M385 's Advantages

Released 4 years and 4 months late

Boost Clock1000MHz

More VRAM (4GB vs 1024GB)

AMD Radeon HD 6970M 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 76.80GB/s)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 M385 +37%

1.792 TFLOPS

Radeon HD 6970M

1.306 TFLOPS

Radeon R9 M385

VS

Radeon HD 6970M

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

900 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1200 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

76.80GB/s

Bandwidth

115.2GB/s

Render Config

14

Compute Units

12

-

896

Shading Units

960

56

TMUs

48

16

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

21.76 GPixel/s

56.00 GTexel/s

Texture Rate

32.64 GTexel/s

-

1.792 TFLOPS

FP32 (float)

1306 GFLOPS

112.0 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Strato

GPU Name

Blackcomb

Strato XT

GPU Variant

Blackcomb XT (216-0811000)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

1.7 billion

160 mm²

Die Size

212 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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