AMD Radeon Pro 455 vs AMD Radeon RX 6600M

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon Pro 455 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 455 's Advantages

Lower TDP (35W vs 100W)

AMD Radeon RX 6600M 's Advantages

Released 4 years and 7 months late

Boost Clock2416MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 81.28GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro 455

1.313 TFLOPS

Radeon RX 6600M +559%

8.659 TFLOPS

Radeon Pro 455

VS

Radeon RX 6600M

Graphics Card

Oct 2016

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

1270 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

128bit

81.28GB/s

Bandwidth

224.0GB/s

Render Config

-

SM Count

-

12

Compute Units

28

768

Shading Units

1792

48

TMUs

112

16

ROPs

64

-

Tensor Cores

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

2 MB

Theoretical Performance

13.68 GPixel/s

Pixel Rate

154.6 GPixel/s

41.04 GTexel/s

Texture Rate

270.6 GTexel/s

1313 GFLOPS

FP16 (half)

17.32 TFLOPS

1313 GFLOPS

FP32 (float)

8.659 TFLOPS

82.08 GFLOPS

FP64 (double)

541.2 GFLOPS

Graphics Processor

Baffin

GPU Name

Navi 23

Baffin 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

Board Design

35W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

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

-

CUDA

-

6.4

Shader Model

6.5

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