80486 SX
Story
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Manufactured after the DX models.
The SX processors were exactly the same as their DX siblings, but without the math coprocessor. This was already common in Intel's policy to lower costs.
If you needed more computing power, you always had the option of adding the math coprocessor later, which was usually located in a specific socket next to the processor, or directly swapping the processor for a DX model. Although this option used to be more expensive.
Later the SX2 were also manufactured, which were the same processors with a multiplier of their internal clock, which gave them twice the speed.
SOCKET
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PGA168
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Pin Grid Array: Also known as Socket 486 and also known as Socket 0.
It is an expanded version of its successor the socket 132.
In this case it uses rows of 17 pins instead of the 14 as its predecessor
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It was used mainly in the 80486 processors in all its versions, both SX, DX, DX2 and DX4.
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80486 SX
Intel KU80486 SX-25
TYPE: 486
Speed: 25 MHz
Bus: 25 MHz
Clock: X1
Cache: 8 KB
Coprocessor: NO
Number of transistors: 1,185,000
Package: QFP
sSpec: SX673
Voltage: 5V
Manufacture: 4/1991
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Intel A80486SX-25
TYPE: 486
Speed: 25 MHz
Bus: 25 MHz
Clock: X1
Cache: 8 KB
Coprocessor: NO
Number of transistors: 1,185,000
Package: CPGA
Socket: PGA168
sSpec: SX679
Voltage: 5V
Manufacture: 4/1991
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Intel A80486SX-25
TYPE: 486
Speed: 25 MHz
Bus: 25 MHz
Clock: X1
Cache: 8 KB
Coprocessor: NO
Number of transistors: 1,185,000
Package: CPGA
Socket: PGA168
sSpec: SX798
Voltage: 5V
Manufacture: 4/1991
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Intel A80486SX-33
TYPE: 486
Speed: 33 MHz
Bus: 33 MHz
Clock: X1
Cache: 8 KB
Coprocessor: NO
Number of transistors: 1,185,000
Package: CPGA
Socket: PGA168
sSpec: SX797
Voltage: 5V
Manufacturing: 1,992
.
80486 SX2
Intel A80486SX2-50
TYPE: 486
Speed: 50 MHz
Bus: 25 MHz
Clock: X2
Cache: 8 KB
Coprocessor: NO
Number of transistors: 1,185,000
Package: CPGA
Socket: PGA168
sSpec: SX845
Voltage: 5V
Manufacturing: 1,994
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