AMD Radeon RX 6600S vs ATI Mobility Radeon X1900

VS

AMD Radeon RX 6600S

ATI Mobility Radeon X1900

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 256MB VRAM Mobility Radeon X1900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 15 years late

Boost Clock2000MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 30.08GB/s)

1792 additional rendering cores

Score

Radeon RX 6600S

VS

Mobility Radeon X1900

Graphics Card

Jan 2022

Release Date

Jan 2007

Mobility Radeon

Generation

M6x

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

MXM-III

Clock Speeds

1700 MHz

Base Clock

-

2000 MHz

Boost Clock

-

1750 MHz

Memory Clock

470 MHz

Memory

4GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

30.08GB/s

Render Config

28

Compute Units

-

1792

Shading Units

-

112

TMUs

12

64

ROPs

12

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

-

32 MB

L3 Cache

-

Theoretical Performance

128.0 GPixel/s

Pixel Rate

4.800 GPixel/s

224.0 GTexel/s

Texture Rate

4.800 GTexel/s

14.34 TFLOPS

FP16 (half)

-

7.168 TFLOPS

FP32 (float)

-

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

M68

-

RDNA 2.0

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

7 nm

Process Size

80 nm

11.06 billion

Transistors

0.312 billion

237 mm²

Die Size

230 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

3.0

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