AMD Radeon Pro Vega II vs ATI Radeon HD 4855

VS

AMD Radeon Pro Vega II

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro Vega II and 512MB VRAM Radeon HD 4855 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 9 years and 5 months late

Boost Clock1720MHz

More VRAM (32GB vs 512GB)

Larger VRAM bandwidth (825.3GB/s vs 115.2GB/s)

3456 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 475W)

Score

Benchmark

FP32 (float)

Radeon Pro Vega II +1814%

14.09 TFLOPS

Radeon HD 4855

0.736 TFLOPS

Radeon Pro Vega II

VS

Radeon HD 4855

Graphics Card

Jun 2019

Release Date

Jan 2010

Radeon Pro Mac

Generation

Radeon R700

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 2.0 x16

Clock Speeds

1574 MHz

Base Clock

-

1720 MHz

Boost Clock

-

806 MHz

Memory Clock

900 MHz

Memory

32GB

Memory Size

512MB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

256bit

825.3GB/s

Bandwidth

115.2GB/s

Render Config

64

Compute Units

8

-

4096

Shading Units

640

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

9.200 GPixel/s

440.3 GTexel/s

Texture Rate

18.40 GTexel/s

28.18 TFLOPS

FP16 (half)

-

14.09 TFLOPS

FP32 (float)

736.0 GFLOPS

7.045 TFLOPS

FP64 (double)

147.2 GFLOPS

Board Design

475W

TDP

110W

850 W

Suggested PSU

300 W

1x HDMI 2.0b 4x Thunderbolt

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

1x 6-pin

Graphics Processor

Vega 20

GPU Name

RV770

Vega 20 XT

GPU Variant

RV770 PRO (215-0669065)

GCN 5.1

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

13.23 billion

Transistors

0.956 billion

331 mm²

Die Size

256 mm²

Graphics Features

12 (12_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

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