At the end of the 1990s, Intel launched two
of its best-known processor brands: Celeron and Xeon. The
former was aimed at the budget market and the latter at
servers, and sometimes workstations. The first Celeron
(Covington) was a Pentium II without a Level 2 cache, and
suffered extremely poor performance, whereas the Pentium II
Xeon had a large cache. Even now, both brands still
exist—Celeron for the entry-level market (generally with a
reduced cache and a slower FSB) and Xeon for servers (with a
fast FSB, sometimes more cache, and high
clockspeeds).
Intel quickly added a cache to the Celeron
with the Mendocino model (128 KB). The Celeron 300A is
famous for its overclocking capacities, able to go 50% or
more above its rated clock speed much of the time.
Banias
0.13 µm process technology
Introduced March 2003
64 KB L1 cache
1 MB L2 cache (integrated)
Based on Pentium III core, with
SSE2 SIMD instructions and deeper pipeline
Number of transistors 77 million
Micro-FCPGA,
Micro-FCBGA processor package
Heart of the Intel mobile
Centrino system
400 MHz Netburst-style system bus
Family 6 model 9
Variants
900 MHz (ultra low voltage)
1.0 GHz (ultra low voltage)
1.1 GHz (low voltage)
1.2 GHz (low voltage)
1.3 GHz
1.4 GHz
1.5 GHz
1.6 GHz
1.7 GHz
Dothan 0.09 µm (90
nm) process technology
Introduced May 2004
2 MB L2 cache
140 million transistors
Revised data prefetch unit
400 MHz Netburst-style system bus
21W
TDP
Family 6 model 13
Variants
1.00 GHz (Pentium M 723) (ultra low voltage,
5W TDP)
1.10 GHz (Pentium M 733) (ultra low voltage,
5W TDP)
1.20 GHz (Pentium M 753) (ultra low voltage,
5W TDP)
1.30 GHz (Pentium M 718) (low voltage, 10W
TDP)
1.40 GHz (Pentium M 738) (low voltage, 10W
TDP)
1.50 GHz (Pentium M 758) (low voltage, 10W
TDP)
1.60 GHz (Pentium M 778) (low voltage, 10W
TDP)
1.40 GHz (Pentium M 710)
1.50 GHz (Pentium M 715)
1.60 GHz (Pentium M 725)
1.70 GHz (Pentium M 735)
1.80 GHz (Pentium M 745)
2.00 GHz (Pentium M 755)
2.10 GHz (Pentium M 765)
Dothan 533 0.09 µm (90
nm) process technology
Introduced Q1 2005
Same as Dothan except with a 533 MHz
NetBurst-style system bus and 27W
TDP
Variants
1.60 GHz (Pentium M 730)
1.73 GHz (Pentium M 740)
1.86 GHz (Pentium M 750)
2.00 GHz (Pentium M 760)
2.13 GHz (Pentium M 770)
2.26 GHz (Pentium M 780)
Stealey 0.09 µm (90
nm) process technology
Introduced Q2 2007
512 KB L2, 3W TDP
Variants
600 MHz (A100)
800 MHz (A110)
Celeron M
Banias-512
0.13 µm process technology
Introduced March 2003
64 KB L1 cache
512 KB L2 cache (integrated)
SSE2 SIMD instructions
No
SpeedStep technology, is not part of the 'Centrino'
package
Family 6 model 9
Variants
310 – 1.20 GHz
320 – 1.30 GHz
330 – 1.40 GHz
340 – 1.50 GHz
Dothan-1024
90 nm process technology
64 KB L1 cache
1 MB L2 cache (integrated)
SSE2 SIMD instructions
No
SpeedStep technology, is not part of the 'Centrino'
package
Variants
350 – 1.30 GHz
350J – 1.30 GHz, with Execute Disable bit
360 – 1.40 GHz
360J – 1.40 GHz, with Execute Disable bit
370 – 1.50 GHz, with Execute Disable bit
Family 6, Model 13, Stepping 8
380 – 1.60 GHz, with Execute Disable bit
390 – 1.70 GHz, with Execute Disable bit
Yonah-1024
65 nm process technology
64 KB L1 cache
1 MB L2 cache (integrated)
SSE3 SIMD instructions, 533 MHz front-side bus,
execute-disable bit
No
SpeedStep technology, is not part of the 'Centrino'
package
Variants
410 – 1.46 GHz
420 – 1.60 GHz,
423 – 1.06 GHz (ultra low voltage)
430 – 1.73 GHz
440 – 1.86 GHz
443 – 1.20 GHz (ultra low voltage)
450 – 2.00 GHz
Intel Core
In 2005, Intel improved its Pentium 4 twice. First, with
the Prescott-2M, and then with Smithfield. The former was a
64-bit processor, based on the Prescott design, and the
latter was a dual-core processor. They are fairly similar
and have the same problems as other Pentium 4s: low
instructions per cycle (IPC) throughput and difficulty in
increasing the clock frequency due to current losses. These two
processors, intended to limit losses while
awaiting the Core 2 Duo, are not among Intel’s most highly
regarded. And while the Pentium D (the commercial name of
the Smithfield) does have two cores, in reality it’s an
assembly of two Prescott dies in the same package.
Yonah 0.065 µm (65
nm) process technology
Introduced January 2006
533/667 MHz
front side bus
2 MB (Shared on Duo) L2 cache
SSE3 SIMD instructions
31W
TDP (T versions)
Family 6, Model 14
Variants:
Intel Core Duo T2700 2.33 GHz
Intel Core Duo T2600 2.16 GHz
Intel Core Duo T2500 2 GHz
Intel Core Duo T2450 2 GHz
Intel Core Duo T2400 1.83 GHz
Intel Core Duo T2300 1.66 GHz
Intel Core Duo T2050 1.6 GHz
Intel Core Duo T2300e 1.66 GHz
Intel Core Duo T2080 1.73 GHz
Intel Core Duo L2500 1.83 GHz (low voltage,
15W
TDP)
Intel Core Duo L2400 1.66 GHz (low voltage,
15W TDP)
Intel Core Duo L2300 1.5 GHz (low voltage,
15W TDP)
L2 cache was 256 KB Advanced Transfer Cache
(Integrated)
Processor Package Style was PGA423, PGA478
System Bus clock rate 400 MHz
SSE2
SIMD Extensions
Number of Transistors 42 million
Used in desktops and entry-level workstations
0.18 µm process technology (1.7 GHz)
Introduced April 23, 2001
See the 1.4 and 1.5 chips for details
0.18 µm process technology (1.6 and 1.8 GHz)
Introduced July 2, 2001
See 1.4 and 1.5 chips for details
Core Voltage is 1.15 volts in Maximum
Performance Mode; 1.05 volts in Battery Optimized
Mode
Power <1 watt in Battery Optimized Mode
Used in full-size and then light mobile PCs
0.18 µm process technology Willamette (1.9
and 2.0 GHz)
Introduced August 27, 2001
See 1.4 and 1.5 chips for details
Family 15 model 1
Pentium 4 (2 GHz, 2.20 GHz)
Introduced January 7, 2002
Pentium 4 (2.4 GHz)
Introduced April 2, 2002
0.13 µm process technology Northwood A (1.7,
1.8, 1.9, 2, 2.2, 2.4, 2.5, 2.6, 2.8(OEM),3.0(OEM) GHz)
Improved branch prediction and other microcodes
tweaks
512 KB integrated L2 cache
Number of transistors 55 million
400 MHz system bus.
Family 15 model 2
0.13 µm process technology Northwood B (2.26,
2.4, 2.53, 2.66, 2.8, 3.06 GHz)
533 MHz system bus. (3.06 includes Intel's
Hyper-Threading technology).
0.13 µm process technology Northwood C (2.4,
2.6, 2.8, 3.0, 3.2, 3.4 GHz)
800 MHz system bus (all versions include
Hyper-Threading)
6500 to 10000 MIPS
Itanium(chronological entry)
Introduced 2001
See
main entry
Xeon
Official designation now Xeon, i.e. not "Pentium 4
Xeon"
Xeon 1.4, 1.5, 1.7 GHz
Introduced May 21, 2001
L2 cache was 256 KB Advanced Transfer Cache
(Integrated)
Processor Package Style was
Organic Land Grid Array 603 (OLGA 603)
System Bus clock rate 400 MHz
SSE2 SIMD Extensions
Used in high-performance and mid-range dual
processor enabled workstations
Xeon 2.0 GHz and up to 3.6 GHz
Introduced September 25, 2001
Itanium 2(chronological entry)
Introduced July 2002
See
main entry
Mobile
Pentium 4-M
0.13 µm process technology
55 million transistors
cache L2 512 KB
BUS a 400 MHz
Supports up to 1 GB of
DDR 266 MHz Memory
Supports
ACPI 2.0 and
APM 1.2 System Power Management
1.3 V – 1.2 V (SpeedStep)
Power: 1.2 GHz 20.8 W, 1.6 GHz 30 W, 2.6 GHz 35 W
Sleep Power 5 W (1.2 V)
Deeper Sleep Power = 2.9 W (1.0 V)
1.40 GHz – 23 April 2002
1.50 GHz – 23 April 2002
1.60 GHz – 4 March 2002
1.70 GHz – 4 March 2002
1.80 GHz – 23 April 2002
1.90 GHz – 24 June 2002
2.00 GHz – 24 June 2002
2.20 GHz – 16 September 2002
2.40 GHz – 14 January 2003
2.50 GHz – 16 April 2003
2.60 GHz – 11 June 2003
Pentium 4 EE
Introduced September 2003
EE = "Extreme Edition"
Built from the Xeon's "Gallatin" core, but with 2 MB
cache
Pentium 4E
Introduced February 2004
built on 0.09 µm (90
nm) process technology Prescott (2.4A, 2.8,
2.8A, 3.0, 3.2, 3.4, 3.6, 3.8) 1 MB L2 cache
533 MHz system bus (2.4A and 2.8A only)
Number of Transistors 125 million on 1 MB Models
Number of Transistors 169 million on 2 MB Models
800 MHz system bus (all other models)
Hyper-Threading support is only available on CPUs
using the 800 MHz system bus.
The processor's integer
instruction pipeline has been increased from 20
stages to 31 stages, which theoretically allows for even
greater bandwidth.
7500 to 11000 MIPS
LGA 775 versions are in the 5xx series (32-bit) and
5x1 series (with Intel 64)
The 6xx series has 2 MB L2 cache and
Intel 64
Pentium 4F
Introduced Spring 2004
same core as 4E, "Prescott"
3.2–3.6 GHz
starting with the D0 stepping of this processor,
Intel 64 64-bit extensions has also been
incorporated
64-bit processors: IA-64
New instruction set, not at all related to x86.
Before the feature was eliminated (Montecito,
July 2006) IA-64 processors supported 32-bit x86 in
hardware, but
slowly (see its 2001
market reception and 2006
architectural ).
Itanium
Code name Merced
Family 7
Released May 29, 2001
733 MHz and 800 MHz
2MB cache
All recalled and replaced by Itanium-II
Itanium 2
Family 0x1F
Released July 2002
900 MHz – 1.6 GHz
McKinley 900 MHz 1.5MB cache, Model 0x0
McKinley 1 GHz, 3MB cache, Model 0x0
Deerfield 1 GHz, 1.5MB cache, Model 0x1
Madison 1.3 GHz, 3MB cache, Model 0x1
Madison 1.4 GHz, 4MB cache, Model 0x1
Madison 1.5 GHz, 6MB cache, Model 0x1
Madison 1.67 GHz, 9MB cache, Model 0x1
Hondo 1.4 GHz, 4MB cache, dual core MCM, Model 0x1