X86 cpus' Guide

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Processor of the day

AMD Sempron 2800+ Mobile DTR (Dublin) SMN2800BIX3AY (M) 01.jpg
AMD Sempron 2800+ Mobile DTR (Dublin)

Most popular CPUs

Intel Core 2 Duo E8800 (ES)
Intel Core 2 Duo E6200 (ES)
Intel Core 2 Duo E7700
Intel Core 2 Duo E7800
Intel Pentium II 266 (0,35µ)

Best sales on

Intel Core i7-3770
Intel Core i5-3470
Intel Core i5-6500
Intel Core i7-6700
Intel Core i7-2600

Most powerful CPUs
Desktop PCs
AMD : Ryzen Threadripper 3990X
Intel : Core i9-10980XE
Laptop PCs
AMD : Ryzen 9 4900H
Intel : Core i9-10980HK
Servers
AMD : EPYC 7H12
Intel : Xeon Platinium 9282

Intel > CPUs > Xeon > P6 Architecture

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History
Models
Models (list)
From collector's point of view





From collector's point of view

Except the first Pentium II Xeon Engineering samples at 300 and 350 MHz, we can say that Xeons of first generation weren't so hard to find. We could even say that for some models, it was easier to find ES version than commercial ones (Pentium III Xeon 500 and 550 for example)...
Actually, it can be easily explained by the way the professional market, which use much this kind of cpus, works. Companies regularly and in big quantities updates their computers. So when it happens, the second-hand market is flooded by this kind of cpus. The draw back is that once all companies have upgraded their machines, it became harder to find older cpus.
So, some years ago, those Xeons were everywhere, but now, there are less and less around, because companies don't use them anymore for long time, and now upgrade from Pentium 4 Xeons...
But, anyway, for still some time, it should not be too hard to complete the family, for aware collectors.


 Name
Variation
Release date
Rarity
In collection ?
Intel Xeon 300 (1M, ES)
-
Never officially released
******
no
Intel Xeon 300 (2M, ES)
-
Never officially released
******
no
Intel Xeon 350 (512K, ES)
-
Never officially released
******
yes
Intel Xeon 350 (1M, ES)
-
Never officially released
******
no
Intel Xeon 400 (512K)
-
29/06/1998
*
yes
Intel Xeon 400 (1M)
-
29/06/1998
*
yes
Intel Xeon 450 (512K)
-
06/10/1998
*****
yes
Intel Xeon 450 (1M)
-
05/01/1999
**
yes
Intel Xeon 450 (2M)
-
05/01/1999
***
yes
Intel Xeon 400 (ES)
-
Never officially released
******
yes
Intel Xeon 500 (512K)
-
17/03/1999
**
yes
Intel Xeon 500 (1M)
-
17/03/1999
*
yes
Intel Xeon 500 (2M)
-
17/03/1999
**
yes
Intel Xeon 550 (512K)
-
17/03/1999
**
yes
Intel Xeon 550 (1M)
-
17/03/1999
*
yes
Intel Xeon 550 (2M)
-
17/03/1999
**
yes
Intel Xeon 600
-
25/10/1999
***
yes
Intel Xeon 600 (1M, ES)
-
Never officially released
******
yes
Intel Xeon 600 (2M, ES)
-
Never officially released
******
yes
Intel Xeon 650 (ES)
-
Never officially released
******
no
Intel Xeon 667
-
25/10/1999
*
yes
Intel Xeon 700 (1M)
-
22/05/2000
**
yes
Intel Xeon 700 (2M)
-
22/05/2000
***
yes
Intel Xeon 733
-
25/10/1999
*
yes
Intel Xeon 800 (256K)
-
12/01/2000
**
yes
Intel Xeon 800 (2M, ES)
-
Never officially released
**
yes
Intel Xeon 866
-
10/04/2000
*
yes
Intel Xeon 900
-
21/03/2001
***
yes
Intel Xeon 933
-
24/05/2000
*
yes
Intel Xeon 1000
-
08/08/2000
***
yes





Models (list)



Last update : 02/09/2019