AMD Radeon Pro 555X vs AMD Radeon R9 M275X

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 2GB VRAM Radeon R9 M275X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 4 years and 6 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (94.08GB/s vs 72.00GB/s)

128 additional rendering cores

AMD Radeon R9 M275X 's Advantages

Boost Clock925MHz

Score

Benchmark

FP32 (float)

Radeon Pro 555X +17%

1.393 TFLOPS

Radeon R9 M275X

1.184 TFLOPS

Radeon Pro 555X

VS

Radeon R9 M275X

Graphics Card

Jul 2018

Release Date

Jan 2014

Radeon Pro Mac

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1470 MHz

Memory Clock

1125 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

94.08GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

12

Compute Units

10

768

Shading Units

640

48

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

Theoretical Performance

14.51 GPixel/s

Pixel Rate

14.80 GPixel/s

43.54 GTexel/s

Texture Rate

37.00 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

1184 GFLOPS

87.07 GFLOPS

FP64 (double)

74.00 GFLOPS

Graphics Processor

Polaris 21

GPU Name

Venus

Polaris 21 PRO

GPU Variant

Venus XTX (216-0846033)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

3 billion

Transistors

1.5 billion

123 mm²

Die Size

123 mm²

Board Design

75W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

CUDA

-

6.4

Shader Model

6.5 (5.1)

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