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i486DX4-75 - Intel
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Intel i486DX4-75
Ic-photo-Intel--FC80486DX4-75--(486-CPU).png
FC80486DX4, S-Spec SK052
General Info
DesignerIntel
ManufacturerIntel
Model Numberi486DX4-75
Part NumberA80486DX4-75,
MA80486DX4-75,
MQ80486DX4-75,
TQ80486DX475,
FC80486DX4-75,
FC80486DX4WB75
S-SpecSK047, SK087, SK102, SX871, SX884, SK052, SK100, SX870, SX883
IntroductionMarch 7, 1994 (launched)
ShopAmazon
General Specs
Family80486
Series486DX4
Frequency75 MHz
Bus typeFSB
Bus speed25 MHz
Bus rate25 MT/s
Clock multiplier3
CPUID480
Microarchitecture
Microarchitecture80486
Core Name486DX4
Process600 nm
Transistors1,600,000
TechnologyCMOS
Word Size32 bit
Cores1
Max Memory4 GiB
Multiprocessing
Max SMP1-Way (Uniprocessor)
Electrical
Power dissipation2.72 W
Vcore3.3 V ± 0.3 V
OP Temperature0 °C – 85 °C

i486DX4-75 was a fourth-generation x86 microprocessor introduced by Intel in 1994. This chip, which is based on the 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 80387 FPU on-die and incorporated System Management Mode (SMM). The DX4 series had twice as much cache space as the older processors.

Cache[edit]

Main article: 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 [Edit Values]
L1$ 16 KiB
0.0156 MiB
16,384 B
1.525879e-5 GiB
1x16 KiB 4-way set associative (unified, write-through/write-back policy)

Graphics[edit]

This chip had no integrated graphics processing unit.

Features[edit]

Gallery[edit]

See also[edit]

Facts about "i486DX4-75 - Intel"
base frequency75 MHz (0.075 GHz, 75,000 kHz) +
bus rate25 MT/s (0.025 GT/s, 25,000 kT/s) +
bus speed25 MHz (0.025 GHz, 25,000 kHz) +
bus typeFSB +
clock multiplier3 +
core count1 +
core name486DX4 +
core voltage3.3 V (33 dV, 330 cV, 3,300 mV) +
core voltage tolerance0.3 V +
cpuid480 +
designerIntel +
family80486 +
first launchedMarch 7, 1994 +
full page nameintel/80486/486dx4-75 +
instance ofmicroprocessor +
l1$ description4-way set associative +
l1$ size0.0156 MiB (16 KiB, 16,384 B, 1.525879e-5 GiB) +
ldateMarch 7, 1994 +
main imageFile:Ic-photo-Intel--FC80486DX4-75--(486-CPU).png +
main image captionFC80486DX4, S-Spec SK052 +
manufacturerIntel +
max cpu count1 +
max memory4,096 MiB (4,194,304 KiB, 4,294,967,296 B, 4 GiB, 0.00391 TiB) +
max operating temperature85 °C +
microarchitecture80486 +
min operating temperature0 °C +
model numberi486DX4-75 +
nameIntel i486DX4-75 +
part numberA80486DX4-75 +, MA80486DX4-75 +, MQ80486DX4-75 +, TQ80486DX475 +, FC80486DX4-75 + and FC80486DX4WB75 +
power dissipation2.72 W (2,720 mW, 0.00365 hp, 0.00272 kW) +
process600 nm (0.6 μm, 6.0e-4 mm) +
s-specSK047 +, SK087 +, SK102 +, SX871 +, SX884 +, SK052 +, SK100 +, SX870 + and SX883 +
series486DX4 +
smp max ways1 +
technologyCMOS +
transistor count1,600,000 +
word size32 bit (4 octets, 8 nibbles) +