x86 cpus' Guide

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Processor of the day

AMD K6-2+ 350AUZ Embedded 01.jpg
AMD K6-2+ 350 Embedded PGA

Most popular CPUs

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

Intel Core i7-3770
Intel Core i5-3470
Intel Core i5-2400
Intel Core i5-4570
Intel Core i7-2600

Most powerful CPUs
Desktop PCs
AMD : Ryzen 9 7950X
Intel : Core i9-13900KF
Laptop PCs
AMD : Ryzen 9 6980HX
Intel : Core i9-12950HX
Servers
AMD : EPYC 9654P
Intel : Xeon Platinium 9282

IIT > FPUs > 387

Contents


Models (list)
From collector's point of view





Models (list)

 Sub-type
 Number
387DX PGA68
10
387DX PLCC
3
387SX
7
387 QFP
1
Total
21

 Name
Core frequency
FSB
Technology
IIT 3C87-20
20 MHz
20 MHz
???
IIT 3C87-25
25 MHz
25 MHz
???
IIT 3C87-33
33 MHz
33 MHz
???
IIT 3C87-40 PGA
40 MHz
40 MHz
???
IIT 4C87DLC-33 PGA
33 MHz
33 MHz
???
IIT 4C87DLC-25 PGA
25 MHz
25 MHz
???
IIT 4C87DLC-40 PGA
40 MHz
40 MHz
???
IIT XC87DLC-25
25 MHz
25 MHz
???
IIT XC87DLC-33
33 MHz
33 MHz
???
IIT 487DLX25/50
50 MHz
25 MHz
???
IIT 3C87-40 PLCC
40 MHz
40 MHz
???
IIT 4C87DLC-33 PLCC
33 MHz
33 MHz
???
IIT 4C87DLC-40 PLCC
40 MHz
40 MHz
???
IIT 3C87SX-16
16 MHz
16 MHz
???
IIT 3C87SX-20
20 MHz
20 MHz
???
IIT 3C87SX-25
25 MHz
25 MHz
???
IIT 3C87SX-33
33 MHz
33 MHz
???
IIT 3C87SX-40
40 MHz
40 MHz
???
IIT 4C87SLC-33
33 MHz
33 MHz
???
IIT XC87SLC-33
33 MHz
33 MHz
???
IIT 4C87SLC-25
25 MHz
25 MHz
???