AMD Radeon HD 6970M Rebrand vs AMD Radeon R5 M255

VS

AMD Radeon HD 6970M Rebrand AMD Radeon R5 M255

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6970M Rebrand and 2GB VRAM Radeon R5 M255 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6970M Rebrand 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 32.00GB/s)

416 additional rendering cores

AMD Radeon R5 M255 's Advantages

Released 3 years and 9 months late

Boost Clock940MHz

More VRAM (2GB vs 1GB)

Score

Benchmark

FP32 (float)

Radeon HD 6970M Rebrand +77%

1.28 TFLOPS

Radeon R5 M255

0.721 TFLOPS

Radeon HD 6970M Rebrand

VS

Radeon R5 M255

Graphics Card

Jan 2011

Release Date

Oct 2014

Vancouver

Generation

Gem System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

940 MHz

1000 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

32.00GB/s

Render Config

-

SM Count

-

10

Compute Units

6

800

Shading Units

384

40

TMUs

24

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

12.80 GPixel/s

Pixel Rate

7.520 GPixel/s

32.00 GTexel/s

Texture Rate

22.56 GTexel/s

-

FP16 (half)

721.9 GFLOPS

1280 GFLOPS

FP32 (float)

721.9 GFLOPS

-

FP64 (double)

45.12 GFLOPS

Graphics Processor

Broadway

GPU Name

Topaz

Broadway XT

GPU Variant

Topaz PRO (216-0858030)

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

1.55 billion

166 mm²

Die Size

125 mm²

Board Design

75W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

-

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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