PI7C8152A

ENHANCED 2-PORT PCI-to-PCI BRIDGE

INTEL 21152 COMPARISON

PERICOM SEMICONDUCTOR

Revision 1.1 – JUNE 2004

Page 2 of 3

PERFORMANCE COMPARISON: PI7C8152A vs. INTEL 21152

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 760DDR

Processor:

AMD Athlon 1.8GHz with 266MHz Front Side Bus

Memory:

256MB PC2100 DDR

Video:

ATI Radeon 7000 AGP card

Other PCI Devices:

No other PCI devices active

OS:

Windows 2000

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

PI7C8152A

Intel 21152

LAN Card 1

88 Mb/s

79 Mb/s

LAN Card 2

64 Mb/s

23 Mb/s

LAN Card 3

91 Mb/s

34 Mb/s

LAN Card 4

88 Mb/s

72 Mb/s

TEST CASE 2

Motherboard:

Super Micro X5DL8-GG

Chipset:

ServerWorks Grand Champion HE

Processor:

Intel Xeon 2.8GHz with 533/400MHz Front Side Bus

Memory:

256MB 266DDR SDRAM

Video:

On-board ATI Rage XL 8MB

Other PCI Devices:

No other PCI devices active

OS:

Windows 2000

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

PI7C8152A

Intel 21152

LAN Card 1

75 Mb/s

31 Mb/s

LAN Card 2

93 Mb/s

51 Mb/s

LAN Card 3

94 Mb/s

54 Mb/s

LAN Card 4

95 Mb/s

60 Mb/s