X6800 Datasheet, PDF (11/122 Pages) Intel Corporation – Core2 Extreme Processor

Introduction
1
Note:
Note:
Introduction
The Intel^® Core™2 Extreme processor X6800 and Intel^® Core™2 Duo desktop
processor E6000 and E4000 sequences combine the performance of the previous
generation of desktop products with the power efficiencies of a low-power
microarchitecture to enable smaller, quieter systems. These processors are 64-bit
processors that maintain compatibility with IA-32 software.
The Intel^® Core™2 Extreme processor X6800 and Intel^® Core™2 Duo desktop
processor E6000 and E4000 sequences use Flip-Chip Land Grid Array (FC-LGA6)
package technology, and plugs into a 775-land surface mount, Land Grid Array (LGA)
socket, referred to as the LGA775 socket.
In this document, unless otherwise specified, the Intel^® Core™2 Duo desktop
processor E6000 sequence refers to Intel^® Core™2 Duo desktop processors E6850,
E6750, E6550, E6540, E6700, E6600, E6420, E6400, E6320, and E6300. The Intel^®
Core™2 Duo desktop processor E4000 sequence refers to Intel^® Core™2 Duo desktop
processor E4600, E4500, E4400, and E4300.
In this document, unless otherwise specified, the Intel^® Core™2 Extreme processor
X6800 and Intel^® Core™2 Duo desktop processor E6000 and E4000 sequence are
referred to as “processor.”
The processors support several Advanced Technologies including the Execute Disable
Bit, Intel^® 64 architecture, and Enhanced Intel SpeedStep^® Technology. The Intel
Core™2 Duo desktop processor E6000 sequence and Intel Core™2 Extreme processor
X6800 support Intel^® Virtualization Technology (Intel VT). In addition, the Intel
Core™2 Duo desktop processors E6850, E6750, and E6550 support Intel^® Trusted
Execution Technology (Intel^® TXT).
The processor's front side bus (FSB) uses a split-transaction, deferred reply protocol
like the Intel^® Pentium^® 4 processor. The FSB uses Source-Synchronous Transfer (SST)
of address and data to improve performance by transferring data four times per bus
clock (4X data transfer rate, as in AGP 4X). Along with the 4X data bus, the address
bus can deliver addresses two times per bus clock and is referred to as a "double-
clocked" or 2X address bus. Working together, the 4X data bus and 2X address bus
provide a data bus bandwidth of up to 10.7 GB/s.
Intel has enabled support components for the processor including heatsink, heatsink
retention mechanism, and socket. Manufacturability is a high priority; hence,
mechanical assembly may be completed from the top of the baseboard and should not
require any special tooling.
The processor includes an address bus power-down capability which removes power
from the address and data signals when the FSB is not in use. This feature is always
enabled on the processor.
Datasheet
11