Since its launch, in April, 1998, Intel Celeron processor has been going through some changes. The name Celeron is used by Intel to denominate its low cost line of processors. In fact, Celeron is an economic version of Intel top processors. In other words, Celeron is a simplified version of Pentium II, Pentium III, Pentium 4 or Core 2 Duo, with some of its features being reduced or removed. Celeron models already launched and top processors in which they are based on are listed below:
Model
Codename
Based on
Cores
L1 Cache
L2 Cache
Technology
External Bus
Socket
Celeron SEPP
Convington
Pentium II Deschutes core
1
32 KB
-
0.25 µm
66 MHz
Slot 1
Celeron A
Mendocino
Pentium II Deschutes core
1
32 KB
128 KB
0.25 µm
66 MHz
Slot 1
Celeron PPGA
Mendocino
Pentium II Deschutes core
1
32 KB
128 KB
0.25 µm or 0.18 µm
66 MHz
Socket 370
Celeron Coppermine
Coppermine
Pentium III Coppermine core
1
32 KB
128 KB
0.18 µm
66MHz or 100MHz
Socket 370
Celeron Tualatin
Tualatin
Pentium III Tualatin core
1
32 KB
256 KB
0.13 µm
100 MHz
Socket 370
Celeron Willamette
Willamette
Pentium 4 Willamette core
1
8 KB
128 KB
0.18 µm
400 MHz
Socket 478
Celeron Northwood
Northwood
Pentium 4 Northwood core
1
8 KB
128 KB
0.13 µm
400 MHz
Socket 478
Celeron D
Prescott
Pentium 4 Prescott core
1
16 KB
256 KB
90 nm or 65 nm
533 MHz
Socket 478 or Socket 775
Celeron 400 Series
Conroe-L
Core 2 Duo
1
64 KB
512 KB
65 nm
800 MHz
Socket 775
Celeron E1000 Series
Allendale
Core 2 Duo
2
64 KB
512 KB
65 nm
800 MHz
Socket 775
Celeron distinguishes itself from Pentium II, Pentium III, Pentium 4 or Core 2 Duo basically in three aspects:
L2 memory cache size
Internal clock
External bus clock
Because of these differences Celeron is cheaper and of low-performance, compared to the Pentium II, Pentium III, Pentium 4 and Core 2 Duo processors, thus it fits well to domestic users market or to those who don’t need great power in the computer.
