X86 cpus' Guide

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Processor of the day

Intel Core 2 Duo E8400 3,00GHz SLAPL 01.jpg
Intel Core 2 Duo E8400

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 i7-2600
Intel Core i5-3470
Intel Core i7-6700
Intel Core i5-4570

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

 ULSI > Fpus > 387

ULSI Advanced Math Coprocessor SX 40MHz 01.jpg

ULSI Math-Co SX-40
Manufacturer ULSI
Model 387
Architecture Z80
Core frequency 40 MHz
Package PLCC-68
Physical informations
Package Size 2,5x2,5 cm Manufacturing process 1,2 µm
Die size ??? Transistor count ???
Electrical informations
Bus frequency 40 MHz
Core/Bus ratio 1.0x
Voltage 5V
Other informations
Functions/Features None
Part Number US83S87-40 (normal)
Rarity ****
In collection ? yes, in 1 Collection : Xhoba.

Page created on 28/01/2017

Last update : 01/05/2020