AMD Radeon HD 6490M Mac Edition vs AMD Radeon RX 6600S

VS

AMD Radeon HD 6490M Mac Edition

AMD Radeon RX 6600S

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition 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 RX 6600S 's Advantages

Released 10 years and 8 months late

Boost Clock2000MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 25.41GB/s)

1632 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Radeon RX 6600S +2886%

7.168 TFLOPS

Radeon HD 6490M Mac Edition

VS

Radeon RX 6600S

Graphics Card

May 2011

Release Date

Jan 2022

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1700 MHz

-

Boost Clock

2000 MHz

794 MHz

Memory Clock

1750 MHz

Memory

256MB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

128bit

25.41GB/s

Bandwidth

224.0GB/s

Render Config

2

Compute Units

28

-

160

Shading Units

1792

8

TMUs

112

4

ROPs

64

-

RT Cores

28

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

3.000 GPixel/s

Pixel Rate

128.0 GPixel/s

6.000 GTexel/s

Texture Rate

224.0 GTexel/s

-

FP16 (half)

14.34 TFLOPS

240.0 GFLOPS

FP32 (float)

7.168 TFLOPS

-

FP64 (double)

448.0 GFLOPS

Board Design

Unknown

TDP

80W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

Navi 23

Seymour XTX M2 (216-0809000)

GPU Variant

-

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.37 billion

Transistors

11.06 billion

67 mm²

Die Size

237 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.5

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