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Intel i486SX-16
General Info
Designer	Intel
Manufacturer	Intel
Model Number	i486SX-16
Part Number	A80486SX-16, KU80486SX-16
S-Spec	SX431, SX540, SX545, SX548, SX677, SX671
Introduction	April 22, 1991 (launched)
Shop	Amazon
General Specs
Family	80486
Series	486SX
Frequency	16 MHz
Bus type	FSB
Bus speed	16 MHz
Bus rate	16 MT/s
Clock multiplier	1
CPUID	420
Microarchitecture
Microarchitecture	80486
Core Name	486SX
Process	1 µm, 800 nm
Transistors	1,185,000
Technology	CMOS
Word Size	32 bit
Cores	1
Max Memory	4 GiB
Multiprocessing
Max SMP	1-Way (Uniprocessor)
Electrical
Power dissipation	1.7 W
Vcore	5 V ± 5%
OP Temperature	0 °C – 85 °C

i486SX-16 was a fourth-generation x86 microprocessor introduced by Intel in 1991. This chip, which is based on the 80486 microarchitecture, operated at 16 MHz. In contrast to the i486DX chips, the i486SX line had no functional FPU on-die.

Cache

Main article: 80486 § Cache

Cache Info [Edit Values]
L1$	8 KiB 8,192 B 0.00781 MiB	1x8 KiB 4-way set associative (unified, write-through policy)

Graphics

This chip had no integrated graphics processing unit.

Features

• System Management Mode (SMM)

See also

• 80486 family