AMD Radeon Pro 455 vs AMD Radeon R5 M255

VS

AMD Radeon Pro 455

AMD Radeon R5 M255

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 455 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 Pro 455 's Advantages

Released 2 years late

Larger VRAM bandwidth (81.28GB/s vs 32.00GB/s)

384 additional rendering cores

AMD Radeon R5 M255 's Advantages

Boost Clock940MHz

Score

Benchmark

FP32 (float)

Radeon Pro 455 +82%

1.313 TFLOPS

Radeon R5 M255

0.721 TFLOPS

Radeon Pro 455

VS

Radeon R5 M255

Graphics Card

Oct 2016

Release Date

Oct 2014

Radeon Pro Mac

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

940 MHz

1270 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

81.28GB/s

Bandwidth

32.00GB/s

Render Config

12

Compute Units

6

-

768

Shading Units

384

48

TMUs

24

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

13.68 GPixel/s

Pixel Rate

7.520 GPixel/s

41.04 GTexel/s

Texture Rate

22.56 GTexel/s

1313 GFLOPS

FP16 (half)

721.9 GFLOPS

1313 GFLOPS

FP32 (float)

721.9 GFLOPS

82.08 GFLOPS

FP64 (double)

45.12 GFLOPS

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Baffin

GPU Name

Topaz

Baffin PRO

GPU Variant

Topaz PRO (216-0858030)

GCN 4.0

Architecture

GCN 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

1.55 billion

123 mm²

Die Size

125 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5

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