AMD Radeon R5 M255 vs AMD Radeon HD 7650M

VS

AMD Radeon R5 M255

AMD Radeon HD 7650M

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 1024MB VRAM Radeon HD 7650M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 M255 's Advantages

Released 2 years and 9 months late

Boost Clock940MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (32.00GB/s vs 25.60GB/s)

AMD Radeon HD 7650M 's Advantages

96 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255 +66%

0.721 TFLOPS

Radeon HD 7650M

0.432 TFLOPS

Radeon R5 M255

VS

Radeon HD 7650M

Graphics Card

Oct 2014

Release Date

Jan 2012

Gem System

Generation

London

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

940 MHz

Boost Clock

-

1000 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

32.00GB/s

Bandwidth

25.60GB/s

Render Config

6

Compute Units

6

-

384

Shading Units

480

24

TMUs

24

8

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

7.200 GPixel/s

22.56 GTexel/s

Texture Rate

10.80 GTexel/s

721.9 GFLOPS

FP16 (half)

-

721.9 GFLOPS

FP32 (float)

432.0 GFLOPS

45.12 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

20W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Topaz

GPU Name

Thames

Topaz PRO (216-0858030)

GPU Variant

Thames PRO

GCN 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.55 billion

Transistors

0.716 billion

125 mm²

Die Size

104 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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