AMD Radeon Pro 580 vs AMD Radeon RX 6600S

VS

We compared two Mobile platform GPUs: 8GB VRAM Radeon Pro 580 and 4GB VRAM Radeon RX 6600S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 580 's Advantages

More VRAM (8GB vs 4GB)

512 additional rendering cores

AMD Radeon RX 6600S 's Advantages

Released 4 years and 7 months late

Boost Clock has increased by 67% (2000MHz vs 1200MHz)

Larger VRAM bandwidth (224.0GB/s vs 217.0GB/s)

Lower TDP (80W vs 185W)

Score

Benchmark

FP32 (float)

Radeon Pro 580

5.53 TFLOPS

Radeon RX 6600S +29%

7.168 TFLOPS

Radeon Pro 580

VS

Radeon RX 6600S

Graphics Card

Jun 2017

Release Date

Jan 2022

Radeon Pro Mac

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1100 MHz

Base Clock

1700 MHz

1200 MHz

Boost Clock

2000 MHz

1695 MHz

Memory Clock

1750 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

217.0GB/s

Bandwidth

224.0GB/s

Render Config

-

SM Count

-

36

Compute Units

28

2304

Shading Units

1792

144

TMUs

112

32

ROPs

64

-

Tensor Cores

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

2 MB

L2 Cache

2 MB

Theoretical Performance

38.40 GPixel/s

Pixel Rate

128.0 GPixel/s

172.8 GTexel/s

Texture Rate

224.0 GTexel/s

5.530 TFLOPS

FP16 (half)

14.34 TFLOPS

5.530 TFLOPS

FP32 (float)

7.168 TFLOPS

345.6 GFLOPS

FP64 (double)

448.0 GFLOPS

Graphics Processor

Ellesmere

GPU Name

Navi 23

Ellesmere XTA (216-0886220)

GPU Variant

-

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

5.7 billion

Transistors

11.06 billion

232 mm²

Die Size

237 mm²

Board Design

185W

TDP

80W

-

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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