Editing intel/80486/486dx4-75

{{intel title|i486DX4-75}}
{{mpu
| name                = Intel i486DX4-75
| image               = Ic-photo-Intel--FC80486DX4-75--(486-CPU).png
| image size          = 
| caption             = FC80486DX4, S-Spec SK052
| designer            = Intel
| manufacturer        = Intel
| model number        = i486DX4-75
| part number         = A80486DX4-75
| part number 2       = MA80486DX4-75
| part number 3       = MQ80486DX4-75
| part number 4       = TQ80486DX475
| part number 5       = FC80486DX4-75
| part number 6       = FC80486DX4WB75
| market              = 
| first announced     = 
| first launched      = March 7, 1994
| last order          = 
| last shipment       = 

| family              = 80486
| series              = 486DX4
| locked              = 
| frequency           = 75 MHz
| bus type            = FSB
| bus speed           = 25 MHz
| bus rate            = 25 MT/s
| clock multiplier    = 3
| s-spec              = SK047
| s-spec 2            = SK087
| s-spec 3            = SK102
| s-spec 4            = SX871
| s-spec 5            = SX884
| s-spec 6            = SK052
| s-spec 7            = SK100
| s-spec 8            = SX870
| s-spec 9            = SX883
| s-spec es           = 
| s-spec qs           = 
| cpuid               = 480

| microarch           = 80486
| platform            = 
| chipset             = 
| core name           = 486DX4
| core family         = 
| core model          = 
| core stepping       = 
| process             = 600 nm
| transistors         = 1,600,000
| technology          = CMOS
| die size            = 
| word size           = 32 bit
| core count          = 1
| max cpus            = 1
| max memory          = 4 GiB

| electrical          = Yes
| power               = 2.72 W
| v core              = 3.3 V
| v core tolerance    = 0.3 V
| temp max            = 85 °C
| temp min            = 0 °C

| packaging           = Yes
| package             = CPGA-168
| package type        = 
| package size        = 
| package 2           = SQFP-208
| package type 2      = SQFP
| socket              = Socket 1 
| socket 2            = Socket 2
| socket 3            = Socket 3
| socket 4            = Socket 6
}}
'''i486DX4-75''' was a fourth-generation [[x86]] [[microprocessor]] introduced by [[Intel]] in 1994. This chip, which is based on the {{intel|microarchitectures/80486|80486 microarchitecture}}, had a clock multiplier of x2, x2.5, and x3 with a max operating frequency of 75 MHz, three times the bus frequency. Like the original i486DX, this chip implemented the {{intel|80387}} [[FPU]] on-die and incorporated {{intel|System Management Mode}} (SMM). The DX4 series had twice as much cache space as the older processors.

== Cache ==
{{main|intel/microarchitectures/80486#Memory_Hierarchy|l1=80486 § Cache}}
The i486dx4-100 was offered with two cache policies. Models that came with a write-back cache were marked by an "'''&EW'''" identifier. Models that came with a write-through policy were marked by "'''&E'''".
{{cache info
|l1 cache=16 KiB
|l1 break=1x16 KiB
|l1 desc=4-way set associative
|l1 extra=(unified, write-through/write-back policy)
}}

== Graphics ==
This chip had no integrated graphics processing unit.

== Features ==
* {{intel|System Management Mode}} (SMM)

== Gallery ==
<gallery>
File:KL Intel i486DX4-75 PQFP.jpg|FC80486DX4-75, S-Spec SX883
</gallery>

== See also ==
* {{intel|80486|80486 family}}
base frequency	75 MHz (0.075 GHz, 75,000 kHz) +
bus rate	25 MT/s (0.025 GT/s, 25,000 kT/s) +
bus speed	25 MHz (0.025 GHz, 25,000 kHz) +
bus type	FSB +
clock multiplier	3 +
core count	1 +
core name	486DX4 +
core voltage	3.3 V (33 dV, 330 cV, 3,300 mV) +
core voltage tolerance	0.3 V +
cpuid	480 +
designer	Intel +
family	80486 +
first launched	March 7, 1994 +
full page name	intel/80486/486dx4-75 +
instance of	microprocessor +
l1$ description	4-way set associative +
l1$ size	16 KiB (16,384 B, 0.0156 MiB) +
ldate	March 7, 1994 +
main image	+
main image caption	FC80486DX4, S-Spec SK052 +
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	i486DX4-75 +
name	Intel i486DX4-75 +
part number	A80486DX4-75 +, MA80486DX4-75 +, MQ80486DX4-75 +, TQ80486DX475 +, FC80486DX4-75 + and FC80486DX4WB75 +
power dissipation	2.72 W (2,720 mW, 0.00365 hp, 0.00272 kW) +
process	600 nm (0.6 μm, 6.0e-4 mm) +
s-spec	SK047 +, SK087 +, SK102 +, SX871 +, SX884 +, SK052 +, SK100 +, SX870 + and SX883 +
series	486DX4 +
smp max ways	1 +
technology	CMOS +
transistor count	1,600,000 +
word size	32 bit (4 octets, 8 nibbles) +