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[ The PC Guide | Systems and Components Reference Guide | Motherboard and System Devices | System Chipset and Controllers | Popular Chipsets | Fifth Generation (Pentium Class) Intel Chipsets ]

Comparison of Recent Intel Fifth-Generation Chipsets

Intel has been by far the most popular choice for Pentium motherboard chipsets; more than 90% of Pentium motherboards in existence use Intel chipsets. The 430FX, 430HX, 430VX and 430TX are similar in name and function. The table below contrasts these chipsets in order to demonstrate their most important features and performance factors. The topic headers are based on the topics in the Chipset Functions and Features section. These chipsets all support the Pentium and socket-compatible processors, and use PCI and ISA I/O buses.

Note: The TX chipset is listed before the HX instead of after it, to permit easier comparison to the HX and VX chipsets.

Group

Characteristic

Intel 430FX

Intel 430VX

Intel 430TX

Intel 430HX

Summary Information

Target Market

All

Home / General

Home / General

Business / High-End

Introduced

Early 1995

Early 1996

Early 1997

Early 1996

Relative Cost

Lower

Moderate

Higher

Higher

Processor

System Bus Speeds

50, 60, 66 MHz

50, 60, 66 MHz

50, 60, 66 MHz

50, 60, 66 MHz

Processor Multipliers

1.5x, 2x, 2.5x, 3x

1.5x, 2x, 2.5x, 3x

1.5x, 2x, 2.5x, 3x

1.5x, 2x, 2.5x, 3x

Maximum # of Processors

Single

Single

Single

Dual

L2 Cache

Cache Types

Async, Sync Burst, Pipelined Burst

Async, Sync Burst, Pipelined Burst

Pipelined Burst

Pipelined Burst

Max Cache Size

512 KB

512 KB

512 KB

512 KB

Max RAM Cacheable

64 MB

64 MB

64 MB

512 MB w/ Tag RAM

Memory

Max RAM Support

128 MB

128 MB

256 MB

512 MB

DRAM Technology

FPM, EDO

FPM, EDO, SDRAM

FPM, EDO, SDRAM

FPM, EDO

DRAM Packaging

SIMM

SIMM, DIMM

SIMM, DIMM

SIMM, DIMM

Maximum # of SIMMs/DIMMs

4 / 2

4 / 2

6 / 3

8 / 4

Parity/ECC Support

Neither

Neither

Neither

Both

System Timing

L2 Cache Read Timing

3-1-1-1

3-1-1-1

3-1-1-1

3-1-1-1

FPM DRAM Read Timing (60/66 MHz)

7-3-3-3 / 7-3-3-3

5-3-3-3 / 6-3-3-3

4-3-3-3 / 5-3-3-3

4-3-3-3 / 5-3-3-3

EDO DRAM Read Timing (60/66 MHz)

7-2-2-2 / 7-2-2-2

5-2-2-2 / 6-2-2-2

4-2-2-2 / 5-2-2-2

4-2-2-2 / 5-2-2-2

BEDO/SDRAM Read Timing (60/66 MHz)

n/a

6-1-1-1 / 7-1-1-1

5-1-1-1 / 5-1-1-1

n/a

Processor to PCI Buffers

4

5

!?

6

PCI to Memory Buffers

12

18 + 10

18 + 10

20 + 22

Memory Autodetect

Yes

Yes

Yes

Yes

Peripheral and I/O Bus

PCI Bus Standard

2.0

2.1

2.1

2.1

IDE/ATA Channels

2

2

2

2

Fastest PIO Mode

4

4

4

4

Fastest DMA Mode

2

2

3 (DMA-33)

2

Independent Device Timing

No

No

Yes

Yes

PCI Bus Mastering

Yes

Yes

Yes

Yes

USB Support

No

Yes

Yes

Yes

AGP Support

No

No

No

No

Plug and Play Compliant

Yes

Yes

Yes

Yes

Power Mgmt.

APM Compliant

Yes

Yes

Yes

Yes

Note: System timings stated are "optimal" and depend on support from appropriately fast memory. Otherwise you may need to slow down the timing in your BIOS setup. See the section on memory system timing for more details.

Next: Fifth Generation (Pentium Class) Non-Intel Chipsets


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