PI7C8154B

2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE

PLX PCI6154 COMPARISON

PERICOM SEMICONDUCTOR

Revision 1.0 – JULY 2004

Page 2 of 3

PERFORMANCE COMPARISON: PI7C8154B vs. PLX PCI6154

The performance data was measured using an in-house evaluation board slotted into an off-the-shelf

motherboard. Fast Ethernet (100Mbit LAN) Cards reside in each of the 4 PCI slots on the secondary bus of

the evaluation board. In each comparison, the hardware and software remain constant. The only item

changed is the bridge on the evaluation board. Two different sets of hardware were used, and the

description of each fixture is listed. In each test setup, a PCI exerciser program is used to generate traffic

or write packets from the PCI Fast Ethernet card to memory and then read back from memory to the PCI

Fast Ethernet card.

TEST CASE 1

Motherboard:

Tyan S2460

Chipset:

AMD-760 MP

Processor:

AMD Athlon 1.8GHz

Memory:

512MB PC266 DDR SDRAM

Video:

Radeon 7000 AGP Video

Other PCI Devices:

NA

A Fast Ethernet card running full duplex is slotted in each of the 4 PCI slots on the evaluation board.

Results: Transfer rate measured in Megabits per second

Card Number

Pericom PI7C8154B

PLX PCI6154

LAN Card 1

99 Mb/s

70 Mb/s

LAN Card 2

99 Mb/s

28 Mb/s

LAN Card 3

99 Mb/s

77 Mb/s

LAN Card 4

99 Mb/s

76 Mb/s

TEST CASE 2

Motherboard:

Tyan S2721

Chipset:

Intel E7501

Processor:

Intel Xeon 1.8GHz with 533/400MHz Front Side Bus

Memory:

512MB PC266 DDR SDRAM

Video:

Integrated ATI Rage XL Graphics Controller

Other PCI Devices:

NA

A Fast Ethernet card running full duplex is slotted in each of the 4 PCI slots on the evaluation board.

Results: Transfer rate measured in Megabits per second

Card Number

Pericom PI7C8154B

PLX PCI6154

LAN Card 1

28 Mb/s

37 Mb/s

LAN Card 2

49 Mb/s

33 Mb/s

LAN Card 3

48 Mb/s

32 Mb/s

LAN Card 4

46 Mb/s

15 Mb/s