AMD Radeon HD 6490M vs AMD Radeon RX 6600M

VS

AMD Radeon HD 6490M

AMD Radeon RX 6600M

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 6490M and 8GB VRAM Radeon RX 6600M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600M 's Advantages

Released 10 years and 4 months late

Boost Clock2416MHz

More VRAM (8GB vs 512GB)

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

1632 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M

0.256 TFLOPS

Radeon RX 6600M +3282%

8.659 TFLOPS

Radeon HD 6490M

VS

Radeon RX 6600M

Graphics Card

Jan 2011

Release Date

May 2021

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2068 MHz

-

Boost Clock

2416 MHz

800 MHz

Memory Clock

1750 MHz

Memory

512MB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

128bit

25.60GB/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

3.200 GPixel/s

Pixel Rate

154.6 GPixel/s

6.400 GTexel/s

Texture Rate

270.6 GTexel/s

-

FP16 (half)

17.32 TFLOPS

256.0 GFLOPS

FP32 (float)

8.659 TFLOPS

-

FP64 (double)

541.2 GFLOPS

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

Navi 23

Seymour XTX S3 (216-0809024)

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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