AMD Radeon Pro Vega II vs AMD Radeon R9 255 OEM

VS

AMD Radeon Pro Vega II

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro Vega II and 2GB VRAM Radeon R9 255 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega II 's Advantages

Released 5 years and 6 months late

Boost Clock has increased by 85% (1720MHz vs 930MHz)

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (825.3GB/s vs 73.60GB/s)

3584 additional rendering cores

AMD Radeon R9 255 OEM 's Advantages

Lower TDP (65W vs 475W)

Score

Benchmark

FP32 (float)

Radeon Pro Vega II +1380%

14.09 TFLOPS

Radeon R9 255 OEM

0.952 TFLOPS

Radeon Pro Vega II

VS

Radeon R9 255 OEM

Graphics Card

Jun 2019

Release Date

Dec 2013

Radeon Pro Mac

Generation

Volcanic Islands

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 3.0 x16

Clock Speeds

1574 MHz

Base Clock

900 MHz

1720 MHz

Boost Clock

930 MHz

806 MHz

Memory Clock

1150 MHz

Memory

32GB

Memory Size

2GB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

128bit

825.3GB/s

Bandwidth

73.60GB/s

Render Config

64

Compute Units

8

-

4096

Shading Units

512

256

TMUs

32

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

110.1 GPixel/s

Pixel Rate

14.88 GPixel/s

440.3 GTexel/s

Texture Rate

29.76 GTexel/s

28.18 TFLOPS

FP16 (half)

-

14.09 TFLOPS

FP32 (float)

952.3 GFLOPS

7.045 TFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

475W

TDP

65W

850 W

Suggested PSU

250 W

1x HDMI 2.0b 4x Thunderbolt

Outputs

No outputs

None

Power Connectors

1x 6-pin

Graphics Processor

Vega 20

GPU Name

Cape Verde

Vega 20 XT

GPU Variant

Cape Verde PRX

GCN 5.1

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

13.23 billion

Transistors

1.5 billion

331 mm²

Die Size

123 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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