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Architecture |
Basic design of a
microprocessor. May include process technology and/or other
architectural enhancements. |
Cache
(MB/KB) |
A temporary
storage area for frequently accessed or recently accessed data. Having
certain data stored in a cache speeds up the operation of the computer.
Cache size is measured in megabytes (MB) or kilobytes (KB). |
Clock Speed
(GHz/MHz) |
Speed of the
processor's internal clock, which dictates how fast the processor can
process data. Clock speed is usually measured in GHz (gigahertz, or
billions of pulses per second). |
|
Front Side Bus
(GHz/MHz) |
The connecting
path between the processor and other key components such as the memory
controller hub. FSB speed is measured in GHz or MHz. |
|
Going forward, Intel processors will be named using a combination of the
processor brand (the "processor family") and a specific 3-digit number (the
"processor number").
Example:
Processor numbers will be categorized in 3-digit numerical sequences such as
7xx, 5xx, or 3xx. This number plus the processor family comprise the overall
"processor name". Within each number sequence are specific processor numbers
such as 735, 560, or 320. References to the clock speed in the processor name
(as has been used in the past) will be replaced with the processor number, which
now represent a broader set of features that influence the overall user
experience. Processor families may also change to reflect changes in Intel's
product offerings.
Examples of specific Intel processor families include:
|
Desktop
Processor Family |
Number
Sequence |
|
Intel® Pentium® 4
processor (including the Intel® Pentium® 4 processor supporting
Hyper-Threading Technology and Intel® Pentium® 4 processor with HT
Technology) |
5xx |
|
Intel® Celeron® D
processor |
3xx |
|
|
Mobile
Processor Family |
Number
Sequence |
|
Intel® Pentium® M
processor* |
7xx |
|
Intel® Pentium® M
processor Low Voltage (or LV) |
7xx |
|
Intel® Pentium® M
processor Ultra Low Voltage (or ULV) |
7xx |
|
Mobile Intel®
Pentium® 4 processor (including the Mobile Intel® Pentium® 4 processor
supporting Hyper-Threading Technology and Mobile Intel® Pentium® 4
processor with HT Technology) |
5xx |
|
Intel® Celeron® M
processor |
3xx |
|
Intel® Celeron® M
processor Ultra Low Voltage (or ULV) |
3xx |
|
| *
The Intel® Pentium® M processor is the processor component of the Intel®
Centrino™ brand, which also encompasses a mobile chipset and integrated
wireless LAN capability. |
All processor families have their own unique value proposition and correspond
to differing usage models for the end customer. Once customers decide how they
wish to use their PC, they can select a processor family (brand) based on their
desired computing experience. In that context, processor numbers can then be
used as a guide in determining what combination of features is most preferable.
A higher number within a processor family can indicate more processor
features, more of a specific processor feature, or a change in architecture.
Note that in some cases, a higher number processor may potentially have more of
one feature and less of another.
For example, there may be a case where the processor number increments due to
a front side bus increase (e.g. from 400 MHz to 533 MHz), or cache increase
(e.g. from 512KB to 1MB), even though the clock speed may stay constant or
decrease. When comparing processor numbers, it's important to keep in mind that
there are other key features outside of clock speed that contribute to the
overall value of the processor.
Processor numbers should be used to differentiate between the relative
overall features within a certain processor family (e.g. within the Intel®
Pentium® 4 processor family) and within a numbering sequence (e.g. 550 vs. 540).
However, the digits themselves have no inherent meaning, particularly when
looking across families; e.g. 710 is not "better" than 510 simply because 7 is
greater than 5 from a numerical perspective. The numbers are aligned with
different processor families and thus represent different value propositions to
the end customer.
Processor numbers are also not a measurement of performance. A higher number
does not necessarily mean higher performance for any given usage model or any
given system configuration. Tools are available to end customers wishing to
evaluate processors from solely a performance-based perspective. In these cases,
the customer may refer to industry-standard benchmarks which measure PC
performance while running specific end user applications. Processor numbers do
not represent specific system configurations but rather a set of available
processor features, and therefore cannot be used as a proxy for system-level
benchmarks. (For more information on industry-standard benchmarks and available
performance data, please go to
www.intel.com/performance.)
|
July - Dec. 2004 |
Jan. - June 2005 |
Intel® Pentium® 4 Processor
560Δ Supporting HT† Technology
or greater
 |
 |
1 MB L2 cache,
3.60 GHz,
800 MHz FSB |
 |
Intel® 925X
Chipset |
 |
Intel® 915
Chipset Family |
 |
Intel® 865
Chipset Family |
|
Intel® Pentium® 4 Processor
560Δ Supporting HT† Technology
or greater
 |
 |
1 MB L2 cache,
3.60 GHz,
800 MHz FSB |
 |
Intel® 925X
Chipset |
 |
Intel® 915
Chipset Family |
 |
Intel® 865
Chipset Family |
|
 |
Intel® Celeron® D Processor 335Δ or greater
 |
 |
256 KB L2
cache, 2.80 GHz,
533 MHz FSB |
 |
Intel® 845
Chipset Family / Intel® 910GL |
|
Intel® Celeron® D Processor 335Δ or greater
 |
 |
256 KB L2
cache, 2.80 GHz,
533 MHz FSB |
 |
Intel® 910GL |
|
|
|
High-End Intel Multi-Core Processors Compared
| Processor Name |
Core 2 Extreme (quad-core, 45nm) |
Core 2 Extreme
(quad-core, 65nm) |
Core 2 Extreme
(dual-core, 65nm) |
| Processor Model |
QX9650 |
QX6850, QX6800, QX6700 |
X6800 |
| Processor
Frequency |
3.0GHz |
3.0GHz, 2.93GHz, 2.67GHz |
2.93GHz |
| No. of Cores |
4 |
4 |
2 |
| Front Side Bus
(MHz) |
1333 |
1333, 1066 |
1066 |
| L1 Cache (data +
instruction) |
(32KB + 32KB) x 4 |
(32KB + 32KB) x 4 |
(32KB + 32KB) x 2 |
| L2 Cache |
6MB x 2 |
4MB x 2 |
4MB |
| Memory
Controller |
External - Chipset Dependent |
External - Chipset Dependent |
External - Chipset Dependent |
| VID (V) |
- |
0.85 - 1.50 |
0.85 - 1.3625 |
| Icc (max) (A) |
- |
125 |
90 |
| TDP (W) |
130 |
130 |
75 |
| Execute Disable
Bit |
Yes |
Yes |
Yes |
| Instruction Set
Support |
MMX, SSE, SSE2, SSE3, SSSE3, SSE4 |
MMX, SSE, SSE2, SSE3, SSSE3 |
MMX, SSE, SSE2, SSE3, SSSE3 |
| Intel EM64T |
Yes |
Yes |
Yes |
| Enhanced Intel
SpeedStep Technology (EIST) |
Yes |
Yes |
Yes |
| Virtualization
Technology |
Yes (Enhanced) |
Yes |
Yes |
| Packaging |
LGA775 |
LGA775 |
LGA775 |
| Process
Technology |
45nm |
65nm |
65nm |
| Processor
Codename |
Yorkfield |
Kentsfield |
Conroe |
| Die Size |
214mm� |
286mm� |
143mm� |
| No. of
Transistors |
820 million |
582 million |
291 million |
|
|
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