AMD Radeon Pro 555X vs AMD Radeon E9171 MCM

VS

AMD Radeon Pro 555X AMD Radeon E9171 MCM

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 4GB VRAM Radeon E9171 MCM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 9 months late

256 additional rendering cores

AMD Radeon E9171 MCM 's Advantages

Boost Clock1219MHz

Larger VRAM bandwidth (96.00GB/s vs 94.08GB/s)

Lower TDP (40W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X +11%

1.393 TFLOPS

Radeon E9171 MCM

1.248 TFLOPS

Radeon Pro 555X

VS

Radeon E9171 MCM

Graphics Card

Jul 2018

Release Date

Oct 2017

Radeon Pro Mac

Generation

Embedded

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1124 MHz

-

Boost Clock

1219 MHz

1470 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

94.08GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

12

Compute Units

8

768

Shading Units

512

48

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

14.51 GPixel/s

Pixel Rate

19.50 GPixel/s

43.54 GTexel/s

Texture Rate

39.01 GTexel/s

1393 GFLOPS

FP16 (half)

1248 GFLOPS

1393 GFLOPS

FP32 (float)

1248 GFLOPS

87.07 GFLOPS

FP64 (double)

78.02 GFLOPS

Graphics Processor

Polaris 21

GPU Name

Lexa

Polaris 21 PRO

GPU Variant

Lexa MCM Pro

GCN 4.0

Architecture

GCN 4.0

GlobalFoundries

Foundry

GlobalFoundries

14 nm

Process Size

14 nm

3 billion

Transistors

2.2 billion

123 mm²

Die Size

103 mm²

Board Design

75W

TDP

40W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.2

-

CUDA

-

6.4

Shader Model

6.4

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