AMD Radeon HD 6970M vs AMD Radeon R5 M420

VS

AMD Radeon HD 6970M

AMD Radeon R5 M420

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M and 4GB VRAM Radeon R5 M420 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 16.00GB/s)

640 additional rendering cores

AMD Radeon R5 M420 's Advantages

Released 5 years and 4 months late

Boost Clock850MHz

More VRAM (4GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon HD 6970M +140%

1.306 TFLOPS

Radeon R5 M420

0.544 TFLOPS

Radeon HD 6970M

VS

Radeon R5 M420

Graphics Card

Jan 2011

Release Date

May 2016

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

780 MHz

-

Boost Clock

850 MHz

900 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

16.00GB/s

Render Config

12

Compute Units

5

-

960

Shading Units

320

48

TMUs

20

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

21.76 GPixel/s

Pixel Rate

6.800 GPixel/s

32.64 GTexel/s

Texture Rate

17.00 GTexel/s

-

1306 GFLOPS

FP32 (float)

544.0 GFLOPS

-

FP64 (double)

34.00 GFLOPS

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Blackcomb

GPU Name

Jet

Blackcomb XT (216-0811000)

GPU Variant

Jet PRO (216-0856040)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

0.69 billion

212 mm²

Die Size

56 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

-

5.0

Shader Model

6.5 (5.1)

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