AMD Radeon RX 6600M vs ATI Mobility Radeon HD 3670

VS

AMD Radeon RX 6600M

ATI Mobility Radeon HD 3670

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6600M and 256MB VRAM Mobility Radeon HD 3670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600M 's Advantages

Released 13 years and 4 months late

Boost Clock2416MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 25.60GB/s)

1672 additional rendering cores

ATI Mobility Radeon HD 3670 's Advantages

Lower TDP (30W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 6600M +5212%

8.659 TFLOPS

Mobility Radeon HD 3670

0.163 TFLOPS

Radeon RX 6600M

VS

Mobility Radeon HD 3670

Graphics Card

May 2021

Release Date

Jan 2008

Mobility Radeon

Generation

M8x

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

2068 MHz

Base Clock

-

2416 MHz

Boost Clock

-

1750 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

25.60GB/s

Render Config

28

Compute Units

3

-

1792

Shading Units

120

112

TMUs

8

64

ROPs

4

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

128 KB

32 MB

L3 Cache

-

Theoretical Performance

154.6 GPixel/s

Pixel Rate

2.720 GPixel/s

270.6 GTexel/s

Texture Rate

5.440 GTexel/s

17.32 TFLOPS

FP16 (half)

-

8.659 TFLOPS

FP32 (float)

163.2 GFLOPS

541.2 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

30W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

M86

-

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

11.06 billion

Transistors

0.378 billion

237 mm²

Die Size

135 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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