APOLLO KX133
The VIA Apollo KX133 core logic chipset brings AGP4X, PC133,
200MHz FSB and ATA-66 technologies to AMD AthlonTM-based
platforms -- a potent combination that delivers a new standard
in desktop performance.
V I A P E R F O R M A N C E C H I P S E T
VT82C686A Southbridge
VT8371 Northbridge
AGP 4X
AMD AthlonTM
Processor
VT8371
516 BGA
PC133
SDRAM
Clock Buffer
Clock
Generator
VT82C686A
352 BGA
AGP Bus
133MHz
Memory
Bus
SMBus
Power Plane & Peripheral Control
GPIO and ACPI Events
PCI Bus
ISA
ATA 33/66
BIOS ROM
USB
Keyboard/Mouse
The VIA Apollo KX133 is the ultimate chipset solution for AMD AthlonTM-
based high-performance desktop systems. It supports the AlthonTM's
200MHz double-data-rate Alpha EV6-based FSB, providing twice the
throughput of 100MHz Pentium III-based systems. First-to-market
with AGP4X, the Apollo KX133 facilitates a photo-realistic 3D
experience suitable for the most advanced PC games and software
environments and is fully-compatible with the wide range of cards
now available. Through its advanced memory controller architecture,
the Apollo KX133 supports PC133 and VC/133 DRAMs, the latest high-
performance and cost-effective memory types. Support for ATA-66, the latest
fast-IDE transfer protocol, advances HDD access and data throughput and
boosts overall system performance. Additional key features include four USB
ports, AC-97 link for audio and modem, hardware monitoring and power
management.
APOLLO KX133 BLOCK DIAGRAM
200MHz FSB
V I A P E R F O R M A N C E C H I P S E T
APOLLO KX133
FEATURES
200MHz Alpha EV6 FSB for the
AMD AthlonTM processor
66/100/133MHz memory bus
settings
Supports PC133, PC100, VC
SDRAM, and EDO DRAM types
in mixed combinations up to a
total of 2.0GB
AGP 2X/4X
ATA-33/66
AC-97 link for audio/modem
4 USB ports, UHCI compliant
Integrated IO/APIC
Hardware monitoring
Advanced mobile power
management and clock stop
features
PC98/99 compliant
516 BGA VT8371 North Bridge
352 BGA VT82C686A South Bridge
w w w . v i a t e c h . c o m
VIA Technologies, Inc.
Offices
USA
1045 Mission Ct.,
Fremont, CA 94539
USA
tel: (510)683-3300
fax: (510)683-3301
Taiwan, ROC
8F, #533, Chung-cheng Rd.,
Hsin Tien, Taipei,
Taiwan, ROC
tel: (886-2)2218-5452
fax: (886-2)2218-5453
email:mkt@via.com.tw
FEA
TURE COMP
ARISON
Features
VIA
VIA
Intel
Intel
Apollo KX133
Apollo Pro133A
820
440BX
All trade names used herein are the property of their respective owners
North Bridge
VT8371
VT82C694X
82820
82443BX
CPU Front-side-bus
200MHz
66/100/133MHz
100/133MHz
66100MHz
Memory Bus Settings
66/100/133MHz
66/100/133MHz
400MHz
66/100MHz
Max. Memory
2.0GB
2.0GB
1GB
1GB
Memory Type
PC66/100/133 SDRAM
PC66/100/133 SDRAM
PC100 SDRAM
PC66/100 SDRAM
AGP 2X/4X
Y/Y
Y/Y
Y/Y
Y/N
South Bridge
VT82C686A
VT82C686A
82801AA
PXII4
ATA-66
Y
Y
Y
N
AC-97 Link (Audio/Modem)
Y
Y
Y
N
Max. DIMMs
4
4
3
4
USB
4 ports
4 ports
2 ports
2 ports
ACPI/OnNow PMM
Y
Y
Y
Y
Integrated IO/APIC
Y/Y
Y/Y
N/Y
N/Y
Hardware Monitoring
Y
Y
N
N
KBC/RTC
Y/Y
Y/Y
N/Y
N/Y
VC SDRAM
VC SDRAM
RDRAM
EDO DRAM
EDO DRAM
Peak Chipset Bandwidth
VIA KX133 chipset
Bus Type
Peak Bandwidth
Alpha EV6 @ 200MHz
1.6GB
PC133 SDRAM
1.0GB
AGP 4X
1.0GB
PCI @ 33MHz
132MB
Total Bandwidth
3.73GB
Intel 820 chipset
Bus Type
Peak Bandwidth
P6 @ 133MHz
1.0GB
DRDRAM @ 800MHz
1.6GB
AGP 4X
1.0GB
PCI @ 33MHz
132MB
Total Bandwidth
3.73GB
Intel 440BX chipset
Bus Type
Peak Bandwidth
P6 @ 100MHz
800MB
PC100 SDRAM
800MB
AGP 2X
533MB
PCI @ 33MHz
132MB
Total Bandwidth
2.26GB
Peak Memory Bandwidth
Memory Type
Peak
Bandwidth
PC100
800MB
PC133
1.0GB
DRDRAM @ 600MHz
1.2GB
PC200 (DDR)
1.6GB
DRDRAM @ 800MHz
1.6GB
PC266 (DDR)
2.1GB
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