AMD Radeon Pro 555X vs AMD Radeon RX 6600M

VS

AMD Radeon Pro 555X

AMD Radeon RX 6600M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 8GB VRAM Radeon RX 6600M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Lower TDP (75W vs 100W)

AMD Radeon RX 6600M 's Advantages

Released 2 years and 10 months late

Boost Clock2416MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (224.0GB/s vs 94.08GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 555X

1.393 TFLOPS

Radeon RX 6600M +521%

8.659 TFLOPS

Radeon Pro 555X

VS

Radeon RX 6600M

Graphics Card

Jul 2018

Release Date

May 2021

Radeon Pro Mac

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2068 MHz

-

Boost Clock

2416 MHz

1470 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

128bit

94.08GB/s

Bandwidth

224.0GB/s

Render Config

12

Compute Units

28

-

768

Shading Units

1792

48

TMUs

112

16

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

14.51 GPixel/s

Pixel Rate

154.6 GPixel/s

43.54 GTexel/s

Texture Rate

270.6 GTexel/s

1393 GFLOPS

FP16 (half)

17.32 TFLOPS

1393 GFLOPS

FP32 (float)

8.659 TFLOPS

87.07 GFLOPS

FP64 (double)

541.2 GFLOPS

Board Design

75W

TDP

100W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 21

GPU Name

Navi 23

Polaris 21 PRO

GPU Variant

-

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

3 billion

Transistors

11.06 billion

123 mm²

Die Size

237 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.5

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