AMD Radeon RX 6600M vs ATI Mobility Radeon HD 3850

VS

AMD Radeon RX 6600M

ATI Mobility Radeon HD 3850

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6600M and 512MB VRAM Mobility Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600M 's Advantages

Released 12 years and 11 months late

Boost Clock2416MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (224.0GB/s vs 48.00GB/s)

1472 additional rendering cores

ATI Mobility Radeon HD 3850 's Advantages

Lower TDP (35W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 6600M +2233%

8.659 TFLOPS

Mobility Radeon HD 3850

0.371 TFLOPS

Radeon RX 6600M

VS

Mobility Radeon HD 3850

Graphics Card

May 2021

Release Date

Jun 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

750 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

48.00GB/s

Render Config

28

Compute Units

4

-

1792

Shading Units

320

112

TMUs

16

64

ROPs

16

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

256 KB

32 MB

L3 Cache

-

Theoretical Performance

154.6 GPixel/s

Pixel Rate

9.280 GPixel/s

270.6 GTexel/s

Texture Rate

9.280 GTexel/s

17.32 TFLOPS

FP16 (half)

-

8.659 TFLOPS

FP32 (float)

371.2 GFLOPS

541.2 GFLOPS

FP64 (double)

74.24 GFLOPS

Board Design

100W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

M88

-

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

11.06 billion

Transistors

0.666 billion

237 mm²

Die Size

192 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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