AMD Radeon HD 6970M vs AMD Radeon R9 M385

VS

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

Main Differences

AMD Radeon HD 6970M 's Advantages

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

64 additional rendering cores

AMD Radeon R9 M385 's Advantages

Released 4 years and 4 months late

Boost Clock1000MHz

More VRAM (4GB vs 1GB)

Score

Benchmark

FP32 (float)

Radeon HD 6970M

1.306 TFLOPS

Radeon R9 M385 +37%

1.792 TFLOPS

Radeon HD 6970M

VS

Radeon R9 M385

Graphics Card

Jan 2011

Release Date

May 2015

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

1000 MHz

900 MHz

Memory Clock

1200 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

76.80GB/s

Render Config

-

SM Count

-

12

Compute Units

14

960

Shading Units

896

48

TMUs

56

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

21.76 GPixel/s

Pixel Rate

16.00 GPixel/s

32.64 GTexel/s

Texture Rate

56.00 GTexel/s

-

FP16 (half)

-

1306 GFLOPS

FP32 (float)

1.792 TFLOPS

-

FP64 (double)

112.0 GFLOPS

Graphics Processor

Blackcomb

GPU Name

Strato

Blackcomb XT (216-0811000)

GPU Variant

Strato XT

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.08 billion

212 mm²

Die Size

160 mm²

Board Design

75W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

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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