AMD Radeon R9 255 OEM vs AMD Radeon Pro Vega II Duo

VS

AMD Radeon R9 255 OEM

AMD Radeon Pro Vega II Duo

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

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Lower TDP (65W vs 475W)

AMD Radeon Pro Vega II Duo '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 (1020GB/s vs 73.60GB/s)

3584 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

Radeon Pro Vega II Duo +1380%

14.09 TFLOPS

Radeon R9 255 OEM

VS

Radeon Pro Vega II Duo

Graphics Card

Dec 2013

Release Date

Jun 2019

Volcanic Islands

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

Apple MPX

Clock Speeds

900 MHz

Base Clock

1400 MHz

930 MHz

Boost Clock

1720 MHz

1150 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

32GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

4096bit

73.60GB/s

Bandwidth

1020GB/s

Render Config

8

Compute Units

64

-

512

Shading Units

4096

32

TMUs

256

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

110.1 GPixel/s

29.76 GTexel/s

Texture Rate

440.3 GTexel/s

-

FP16 (half)

28.18 TFLOPS

952.3 GFLOPS

FP32 (float)

14.09 TFLOPS

59.52 GFLOPS

FP64 (double)

7.045 TFLOPS

Board Design

65W

TDP

475W

250 W

Suggested PSU

850 W

No outputs

Outputs

1x HDMI 2.0b 4x Thunderbolt

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

Vega 20

Cape Verde PRX

GPU Variant

Vega 20 XT

GCN 1.0

Architecture

GCN 5.1

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

1.5 billion

Transistors

13.23 billion

123 mm²

Die Size

331 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.7

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