AMD Radeon RX 6600S vs ATI Mobility Radeon HD 2600 XT Mac Edition

VS

AMD Radeon RX 6600S

ATI Mobility Radeon HD 2600 XT Mac Edition

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 256MB VRAM Mobility Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 14 years and 6 months late

Boost Clock2000MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 21.92GB/s)

1672 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600S +4877%

7.168 TFLOPS

Mobility Radeon HD 2600 XT Mac Edition

0.144 TFLOPS

Radeon RX 6600S

VS

Mobility Radeon HD 2600 XT Mac Edition

Graphics Card

Jan 2022

Release Date

Jul 2007

Mobility Radeon

Generation

M7x

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

MXM-II

Clock Speeds

1700 MHz

Base Clock

-

2000 MHz

Boost Clock

-

1750 MHz

Memory Clock

685 MHz

Memory

4GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

21.92GB/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

64 KB

32 MB

L3 Cache

-

Theoretical Performance

128.0 GPixel/s

Pixel Rate

2.400 GPixel/s

224.0 GTexel/s

Texture Rate

4.800 GTexel/s

14.34 TFLOPS

FP16 (half)

-

7.168 TFLOPS

FP32 (float)

144.0 GFLOPS

448.0 GFLOPS

FP64 (double)

-

Board Design

80W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

M76

-

GPU Variant

M76 XT-M (216XJBKA13FG)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

65 nm

11.06 billion

Transistors

0.39 billion

237 mm²

Die Size

153 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.0

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