AMD Radeon Pro Vega 20 vs AMD Radeon Pro 555X

VS

AMD Radeon Pro Vega 20 AMD Radeon Pro 555X

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 4GB VRAM Radeon Pro 555X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 20 's Advantages

Boost Clock1283MHz

Larger VRAM bandwidth (189.4GB/s vs 94.08GB/s)

512 additional rendering cores

AMD Radeon Pro 555X 's Advantages

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20 +135%

3.284 TFLOPS

Radeon Pro 555X

1.393 TFLOPS

Radeon Pro Vega 20

VS

Radeon Pro 555X

Graphics Card

Nov 2018

Release Date

Jul 2018

Radeon Pro Mac

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

815 MHz

Base Clock

-

1283 MHz

Boost Clock

-

740 MHz

Memory Clock

1470 MHz

Memory

4GB

Memory Size

4GB

HBM2

Memory Type

GDDR5

1024bit

Memory Bus

128bit

189.4GB/s

Bandwidth

94.08GB/s

Render Config

-

SM Count

-

20

Compute Units

12

1280

Shading Units

768

80

TMUs

48

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

Theoretical Performance

41.06 GPixel/s

Pixel Rate

14.51 GPixel/s

102.6 GTexel/s

Texture Rate

43.54 GTexel/s

6.569 TFLOPS

FP16 (half)

1393 GFLOPS

3.284 TFLOPS

FP32 (float)

1393 GFLOPS

205.3 GFLOPS

FP64 (double)

87.07 GFLOPS

Graphics Processor

Vega 12

GPU Name

Polaris 21

Vega 12 XTA

GPU Variant

Polaris 21 PRO

GCN 5.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

Unknown

Transistors

3 billion

Unknown

Die Size

123 mm²

Board Design

100W

TDP

75W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (12_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.4

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