AMD Radeon R5 A255 vs AMD Radeon Pro Vega 64

VS

AMD Radeon R5 A255

AMD Radeon Pro Vega 64

We compared two Mobile platform GPUs: 1024MB VRAM Radeon R5 A255 and 16GB VRAM Radeon Pro Vega 64 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 64 's Advantages

Released 3 years and 5 months late

Boost Clock has increased by 44% (1350MHz vs 940MHz)

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (402.4GB/s vs 64.00GB/s)

3712 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 A255

0.721 TFLOPS

Radeon Pro Vega 64 +1433%

11.06 TFLOPS

Radeon R5 A255

VS

Radeon Pro Vega 64

Graphics Card

Jan 2014

Release Date

Jun 2017

All-In-One

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

925 MHz

Base Clock

1250 MHz

940 MHz

Boost Clock

1350 MHz

1000 MHz

Memory Clock

786 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

2048bit

64.00GB/s

Bandwidth

402.4GB/s

Render Config

6

Compute Units

64

-

384

Shading Units

4096

24

TMUs

256

8

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

7.520 GPixel/s

Pixel Rate

86.40 GPixel/s

22.56 GTexel/s

Texture Rate

345.6 GTexel/s

-

FP16 (half)

22.12 TFLOPS

721.9 GFLOPS

FP32 (float)

11.06 TFLOPS

-

FP64 (double)

691.2 GFLOPS

Board Design

Unknown

TDP

250W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Topaz

GPU Name

Vega 10

Topaz PRO (216-0858030)

GPU Variant

Vega 10 XT (215-0894200)

GCN 3.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.55 billion

Transistors

12.5 billion

125 mm²

Die Size

495 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2

-

6.5

Shader Model

6.4

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