Karbosguide.com - Module 3e.10

On CPU sockets

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The contents:

The CPU Sockets and chip sets Pentium II road map Three lines of Intel CPUs

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The CPU Sockets and chip sets

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To get an overview on all the different Intel CPUs, you may take a look at the various sockets, that are used to mount the CPU. Each socket is working together with specific chip sets. Let us finally also look into the future...

There are many different CPU sockets in use for the various CPUs. Here you see a handfull of them:

Socket	Fits CPU	Intel Chip set	Number of pins
Socket 7	Pentium, MMX, K5, 6x86, K6, IDT WinChip, 6x86MX, K6-2	82430TX	321
Socket 8	Pentium Pro	82440FX	387
Slot One	Pentium II	82440FX 82440LX	242
Slot One	Pentium II (100 MHz system bus), Pentium III (100 and 133 MHz)	82440BX 82440JX	242
Slot One	Celeron	82440EX	242
PGA370	Socketed Celeron Pentium III	82440BX 82440LX 82440EX 82440EZ i810 i815	370
Slot Two	Pentium II Xeon, Tanner	82440GX 82450NX	330
PGA423	Pentium 4	i850	423
Slot M	Merced	?	?

Only Socket 7 may be copied freely. The other ones are Intel's patents. They may be manufactured by others on license from Intel. Cyrix is expected to produce Slot 1-compatible modules.

A road map to Intel CPUs

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Putting all the 6th generation's CPUs from Intel together, we get a picture like this:

CPU name/code name	Year	CPU/ bus MHz	L2 cache	Socket	Process techno- logy	Extra instructions
Pentium Pro	1995	233/66	512-1024 full speed	Socket 8	0.35	None
Pentium II "Klamath"	1997	300/66	512 KB half speed	Slot 1	0.35	MMX
Pentium II "Deschutes first"	1998	300/66	512 KB half speed	Slot 1	0.25	MMX
Pentium II " Deschutes second"	1998	400/100 450/100	512 KB half speed	Slot 1	0.25	MMX
Celeron	1998	266/66 300/66	No	Slot 1	0.25	MMX
Celeron A "Mendocino"	1998/ 1999	300/66 333/66 366/66 400/66	128 KB full speed (on-die)	Slot 1	0.25	MMX
Celeron socketed	1999	366/66 400/66 433/66 466/66 500/66 533/66	128 KB full speed (on-die)	Socket 370	0.25/0.18	MMX
Xeon	1998	400/100	512-2048 full speed	Slot 2	0.25	MMX
Pentium III	1999-2000	500/100 533/133 600/100 600/133 650/100 700/100 733/133 ... 1133/133	256 Half speed	Slot 1/PGA370	0.25/0.18	MMX SSE
Pentium III Xeon (Tanner)	1999	550/100	512-2048 full speed	Slot 2	0.25	MMX SSE
Coppermine	1999/ 2000	733/133	256 KB full speed (on-die)	Slot 1 and PGA370	0.18	MMX SSE
Pentium 4	2000	1400	256 KB full speed (on-die)	PGA423	0.18/0.13	SIMD2
"Northwood"	2001	1600	512 full speed (on-die)	PGA478	0.13	?
"Tualatin"	2001	1500	512 full speed (on-die)	Socket 370	0.13	?
Celeron 2	2001	900 - 1200	128 full speed (on-die)	Socket 370	0.13	?

Three lines of Intel CPUs

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If you study the scheme above, you see the development from Intel coming in three "lines". Each line will be developed independently:

Market segment	Processor line	CPU speed	Bus Speed/ Front Side Bus speed	Number of CPUs in system
The consumer	Socketed Celeron	566-1200	66/100 MHz	1
The professional	Pentium III Pentium 4	733-1400 MHz	100/133 MHz or 400 MHz	1 or 2
The server	Xeon Tanner (Cascades)	600 - 1200 MHz	100/133 MHz or 400 MHz	4

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Learn more

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Read about drives in module 4a

Read about chip sets on the motherboard in module 2d

Read more about RAM in module 2e

Read module 5a about expansion cards, where we evaluate the I/O buses from the port side.

Read module 5b about AGP and module 5c about Firewire.

Read module 7a about monitors, and 7b on graphics card.

Read module 7c about sound cards, and 7d on digital sound and music.

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Copyright (c) 1996-2005 by Michael B. Karbo. www.Karbosguide.com.