AMD Radeon RX 6600M vs AMD Radeon R9 M290X

VS

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6600M and 4GB VRAM Radeon R9 M290X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600M 's Advantages

Released 7 years and 4 months late

Boost Clock has increased by 168% (2416MHz vs 900MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (224.0GB/s vs 153.6GB/s)

512 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600M +275%

8.659 TFLOPS

Radeon R9 M290X

2.304 TFLOPS

Radeon RX 6600M

VS

Radeon R9 M290X

Graphics Card

May 2021

Release Date

Jan 2014

Mobility Radeon

Generation

Crystal System

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

2068 MHz

Base Clock

850 MHz

2416 MHz

Boost Clock

900 MHz

1750 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

28

Compute Units

20

1792

Shading Units

1280

112

TMUs

80

64

ROPs

32

-

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

154.6 GPixel/s

Pixel Rate

28.80 GPixel/s

270.6 GTexel/s

Texture Rate

72.00 GTexel/s

17.32 TFLOPS

FP16 (half)

-

8.659 TFLOPS

FP32 (float)

2.304 TFLOPS

541.2 GFLOPS

FP64 (double)

144.0 GFLOPS

Graphics Processor

Navi 23

GPU Name

Neptune

-

GPU Variant

Neptune XT (216-0847000)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

2.8 billion

237 mm²

Die Size

212 mm²

Board Design

100W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

5.1

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