| Celeron M : |
| The Celeron brand has been used by Intel for several distinct ranges of x86 CPUs targeted at budget personal computers. Celeron processors can run all IA-32 computer programs, but their performance is somewhat lower when compared to similar CPUs with higher-priced Intel CPU brands. For example, the Celeron brand will often have less cache memory, or have advanced features purposely disabled. These missing features have had a variable impact on performance. In some cases, the effect was significant and in other cases the differences were relatively minor. Many of the Celeron designs have achieved a very high "bang for the buck", while at other times, the performance difference has been noticeable. This has been the primary justification for the higher cost of other Intel CPU brands versus the Celeron range. As a product concept, the Celeron was introduced in response to Intel's loss of the low-end market, in particular to the Cyrix 6x86, the AMD K6, and the IDT Winchip. Intel's existing low-end product, the Pentium MMX, was no longer performance competitive at 233 MHz. Although a faster Pentium MMX would have been a lower-risk strategy, the industry standard Socket 7 platform hosted a market of competitor CPUs which could be drop-in replacements for the Pentium MMX. Instead, Intel pursued a budget part that was pin-compatible with their high-end Pentium II product, using the Pentium II's (Slot 1) interface. The Celeron was used in many low end machines and, in some ways, became the standard for non gaming computers.
| Model Number |
Frequ-
ency |
Front
Side
Bus |
Voltage |
TDP |
Socket |
Release Date |
| Celeron 300A |
300 MHz |
66 MT/s |
2.0 V |
19 W |
Slot 1 |
August 1998 |
| Celeron 300A |
300 MHz |
66 MT/s |
2.0 V |
19 W |
Socket 370 |
November 1998 |
| Celeron 333 |
333 MHz |
66 MT/s |
2.0 V |
20.9 W |
Slot 1 |
August 1998 |
| Celeron 333 |
333 MHz |
66 MT/s |
2.0 V |
20.9 W |
Socket 370 |
November 1998 |
| Celeron 366 |
366 MHz |
66 MT/s |
2.0 V |
21.7 W |
Slot 1 |
January 1999 |
| Celeron 366 |
366 MHz |
66 MT/s |
2.0 V |
21.7 W |
Socket 370 |
January 1999 |
| Celeron 400 |
400 MHz |
66 MT/s |
2.0 V |
23.7 W |
Slot 1 |
January 1999 |
| Celeron 400 |
400 MHz |
66 MT/s |
2.0 V |
23.7 W |
Socket 370 |
January 1999 |
| Celeron 433 |
433 MHz |
66 MT/s |
2.0 V |
24.6 W |
Slot 1 |
March 22, 1999 |
| Celeron 433 |
433 MHz |
66 MT/s |
2.0 V |
24.1 W |
Socket 370 |
March 22, 1999 |
| Celeron 466 |
466 MHz |
66 MT/s |
2.0 V |
25.7 W |
Socket 370 |
April 26, 1999 |
| Celeron 500 |
500 MHz |
66 MT/s |
2.0 V |
27.2 W |
Socket 370 |
August 1, 1999 |
| Celeron 533 |
533 MHz |
66 MT/s |
2.0 V |
28.3 W |
Socket 370 |
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