Kayak (PIIXIDE 2.04.0)
This release, dated 06-29-98, offers support fot the Intel FX, HX, VX, TX, LX, BX, EX, and GX chipsets.  Updates and changes in this release include:
 

Vectra (PIIXIDE 2.04.2a)
This release, dated 10-11-98, offers support fot the Intel FX, HX, VX, TX, LX, BX, EX, and GX chipsets.  Updates and changes in this release include:
 

Driver performance differences on my system are so small that it is extremely unlikely that you would feel a difference between one driver and another.  I have been seeing more of a performance difference in seemingly identical fresh installations of NT than I do with changes in drivers.  This brings the choice down to compatability with each system's hardware.  I have been fairly fortunate that my choice of components are DMA / UDMA friendly.  I have not encountered any compatability problems with any of the NT drivers I have tested over the last few months.

Testing
Windows NT was freshly installed to a FAT 16 formatted partition.  Aside from the benchmark programs, the only non-MS installed programs or drivers used were for the DCS sound card, the Matrox G200 video card, Hayes modem, and the D-Link ethernet card.  All tests were performed 3 times and the results were averaged.  Between each test the partition was defragmented and the system was rebooted.

System
Celeron 300A o/c'd 4.5X103
Abit BH6
Hitachi PC100 SDRAM (64 MB)
Matrox Millennium G200 Video (8 MB SGRAM)
DCS S805 A3D Sound Card
Quantum Fireball SE 3.2
Quantum Fireball ST 3.2
Matshita CR-574 CD ROM
D-Link DE-528 Ethernet Card
Hayes 5675 56K v.90 / Flex Modem
Inwin A500 Case w/ cooling modifications
WinNT 4 Workstation

Drivers
HP KAYAK XW Series 04XX
HP VECTRA VL 6/XXX Series 8

HP Drivers and NT SP3 and SP4
In an effort to get a better view of the drivers, I decided to test them with Service Pack 3, as well as Service Pack 4.

Timed File Transfer
The last test was to test the speed in transferring files between the two hard drives in a real-world application.  For this test, I transferred a 105 MB copy of Win95 cabs and other assorted files between two 1000 MB partitions.  The folder was moved from drive 0 to drive 1 and back again.  This process was repeated three times for each configuration with the results being averaged.