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Intel® Chipsets Mature Products - Mature 450 and 440 Chipset Families
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If you do not see the mature chipset you're looking for, please refer to Product Support. For other chipsets, view the current chipset comparison charts, which include the latest chipsets, or the embedded chipset comparison chart.

Disclaimer: This chart contains features of Intel chipsets and not necessarily your system. For more information on the features of your system, please contact your motherboard OEM or system manufacturer.

Mature Chipset Comparison Charts
800 Chipset Family 450/440 Chipset Families 430 Chipset Family
450 and 440 Chipset Families
  Intel®
450NX
PCIset
Intel®
440BX
AGPset
Intel®
440GX
AGPset
Intel®
440EX
AGPset

 HOST

450NX PCIset

440BX AGPset

440GX AGPset

440EX AGPset
Host Processor Pentium® III
Xeon® processor, Pentium® II
Xeon® processor
Celeron® processor,
Pentium® III processor,
Pentium® II processor
Pentium® III
Xeon® processor, Pentium® II
Xeon® processor
Celeron® processor
Bus Voltage AGTL+ GTL+ GTL+ Mix 5V, 3.3V
(I/O)
Dual Processing Support 4-way MP Yes Yes No
DRAM
450NX PCIset

440BX AGPset

440GX AGPset

440EX AGPset
Refresh CAS-before-RAS CAS-before-RAS CAS-before-RAS CAS-before-RAS
RAS Lines 16 8 8 4
64 Mbit Support Yes Yes Yes Yes
Max Memory Size 8 GB 1 GB 2 GB 256 MB
Memory Types PC100 SDRAM,
EDO
PC100 SDRAM PC100 SDRAM PC66 SDRAM, EDO
SDRAM (CL=2) x-1-1-1 x-1-1-1 x-1-1-1 x-1-1-1
EDO (66MHz) x-1-1-1 x-2-2-2 x-2-2-2 x-2-2-2
MA Buffers Integrated Integrated Integrated Integrated
ECC / Parity Yes Yes Yes No
PCI INTERFACE
450NX PCIset

440BX AGPset

440GX AGPset

440EX AGPset
PCI Support PCI 2.1 PCI 2.1 PCI 2.1 PCI 2.1
Concurrent PCI Yes Yes Yes Yes
ARBITRATION
450NX PCIset

440BX AGPset

440GX AGPset

440EX AGPset
MTT Yes Yes Yes Yes
SOUTH BRIDGE
450NX PCIset

440BX AGPset

440GX AGPset

440EX AGPset
Type PIIX4E PIIX4E PIIX4E PIIX4E
USB Support 1 controller:
2 ports
1 controller:
2 ports
1 controller:
2 ports
1 controller:
2 ports
IDE ATA/33 ATA/33 ATA/33 ATA/33
RTC RTC RTC RTC RTC
MANAGEABILITY
450NX PCIset

440BX AGPset

440GX AGPset

440EX AGPset
POWER MANAGEMENT No SMM & ACPI SMM & ACPI SMM & ACPI
I/O MANAGEMENT No SM Bus / GPIO SM Bus / GPIO SM Bus / GPIO
450 and 440 Chipset Families
  Intel®
440LX
AGPset
Intel®
440ZX
AGPset
Intel®
440ZX-66
AGPset

 HOST

440LX AGPset

440ZX AGPset

440ZX-66 AGPset
Host Processor Pentium® II
processor
Pentium® III
processor,
Pentium II
processor,
Celeron® processor
Celeron processor
Bus Voltage GTL+ Mix 5V, 3.3V
(I/O)
Mix 5V, 3.3V
(I/O)
Dual Processing Support Yes No No
DRAM
440LX AGPset

440ZX AGPset

440ZX-66 AGPset
Refresh CAS-before-RAS CAS-before-RAS CAS-before-RAS
RAS Lines 8 4 rows 4
64 Mbit Support Yes Yes Yes
Max Memory Size 512 MB PC66 SDRAM, 1 GB EDO 256 MB 256 MB
Memory Types PC66 SDRAM, EDO PC100 SDRAM SDRAM, EDO
SDRAM (CL=2) x-1-1-1 x-1-1-1 x-1-1-1
EDO (66MHz) x-2-2-2 x-2-2-2 x-1-1-1
MA Buffers Integrated Integrated Integrated
ECC / Parity Yes No No
PCI INTERFACE
440LX AGPset

440ZX AGPset

440ZX-66 AGPset
PCI Support PCI 2.1 PCI 2.1 PCI 2.1
Concurrent PCI Yes Yes Yes
ARBITRATION
440LX AGPset

440ZX AGPset

440ZX-66 AGPset
MTT Yes Yes Yes
SOUTH BRIDGE
440LX AGPset

440ZX AGPset

440ZX-66 AGPset
Type PIIX4E PIIX4E PIIX4E
USB Support 1 controller:
2 ports
1 controller:
2 ports
1 controller:
2 ports
IDE ATA/33 ATA/33 ATA/33
RTC Integrated RTC RTC
MANAGEABILITY
440LX AGPset

440ZX AGPset

440ZX-66 AGPset
POWER MANAGEMENT SMM & ACPI SMM & ACPI SMM & ACPI
I/O MANAGEMENT SM Bus / GPIO SM Bus / GPIO SM Bus / GPIO

The Intel® Pentium® III processor, Pentium® III Xeon® processor, Pentium® II processor, Pentium® II Xeon® processor, Celeron® processor, Intel® 450NX PCIset, 440BX AGPset, 440GX AGPset, 440ZX AGPset, 440LX AGPset, 440EX AGPset, and Intel® 440ZX-66 AGPset may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.

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