i486DX-33 - Intel

	Edit Values
	Intel i486DX-33
	A80486DX-33, S-Spec SX419
	General Info
Designer	Intel
Manufacturer	Intel
Model Number	i486DX-33
Part Number	A80486DX-33,; MA80486DX-33,; MG80486DX-33,; MQ80486DX-33,; KU80486DX-33,; SB80486DX-33
S-Spec	SX329, SX412, SX419, SX666, SX668, SX729, SX767, SX810, SX829; Q0128 (QS), Q0364 (QS), Q0588 (QS)
Introduction	May 7, 1990 (launched)
Shop	Amazon
	General Specs
Family	80486
Series	486DX
Frequency	33 MHz
Bus type	FSB
Bus speed	33 MHz
Bus rate	33 MT/s
Clock multiplier	1
CPUID	402, 404, 414, 415
	Microarchitecture
Microarchitecture	80486
Core Name	486DX
Process	1 µm, 800 nm
Transistors	1,200,000
Technology	CMOS
Word Size	32 bit
Cores	1
Max Memory	4 GiB
	Multiprocessing
Max SMP	1-Way (Uniprocessor)
	Electrical
Power dissipation	2.5 W
Vcore	5 V ± 5%
OP Temperature	0 °C – 85 °C

i486DX-33 was a fourth-generation x86 microprocessor introduced by Intel in 1990. This chip, which is based on the 80486 microarchitecture, operated at 33 MHz. This chip implemented the 80387 FPU on-die and incorporated System Management Mode (SMM).

Cache[edit]

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)

This chip had no integrated graphics processing unit.

base frequency	33 MHz (0.033 GHz, 33,000 kHz) +
bus rate	33 MT/s (0.033 GT/s, 33,000 kT/s) +
bus speed	33 MHz (0.033 GHz, 33,000 kHz) +
bus type	FSB +
clock multiplier	1 +
core count	1 +
core name	486DX +
core voltage	5 V (50 dV, 500 cV, 5,000 mV) +
core voltage tolerance	5% +
cpuid	402 +, 404 +, 414 + and 415 +
designer	Intel +
family	80486 +
first launched	May 7, 1990 +
full page name	intel/80486/486dx-33 +
instance of	microprocessor +
l1$ description	4-way set associative +
l1$ size	8 KiB (8,192 B, 0.00781 MiB) +
ldate	May 7, 1990 +
main image	+
main image caption	A80486DX-33, S-Spec SX419 +
manufacturer	Intel +
max cpu count	1 +
max memory	4,096 MiB (4,194,304 KiB, 4,294,967,296 B, 4 GiB, 0.00391 TiB) +
max operating temperature	85 °C +
microarchitecture	80486 +
min operating temperature	0 °C +
model number	i486DX-33 +
name	Intel i486DX-33 +
part number	A80486DX-33 +, MA80486DX-33 +, MG80486DX-33 +, MQ80486DX-33 +, KU80486DX-33 + and SB80486DX-33 +
power dissipation	2.5 W (2,500 mW, 0.00335 hp, 0.0025 kW) +
process	1,000 nm (1 μm, 0.001 mm) + and 800 nm (0.8 μm, 8.0e-4 mm) +
s-spec	SX329 +, SX412 +, SX419 +, SX666 +, SX668 +, SX729 +, SX767 +, SX810 + and SX829 +
s-spec (qs)	Q0128 +, Q0364 + and Q0588 +
series	486DX +
smp max ways	1 +
technology	CMOS +
transistor count	1,200,000 +
word size	32 bit (4 octets, 8 nibbles) +