Cyrix 6x86 PR120+

Pentium 75 | Pentium 120 View next object

The first Cyrix 6x86 CPU that Cyrix released was the 120+ running at 100MHz. It was announced in October 1995. To put it in timeframe: the fastest x86 CPU was the Pentium 133 and the AMD K5/90 wasn't available until late March 1996.

After the release of the 120+ Cyrix also released the slower 90+ at 80MHz. Both the 90+ and 120+ use the M1-core that was manufactured using the SGS Thomson 3M process at 650nm. Cyrix switched to the M1R-core (IBM 5M process at 650nm) in mid 1996 for the 6x86 133+, 150+ and 166+

Specifications

Core / Codename

M1

Clockfrequency

100MHz

Front Side Bus

50MHz

Multiplier

2x

vCore

3,3V

L1 cache

8KB+8KB

L2 cache

None

sSpec

?

Chip date

9610

Stepping

?

Socket

PGA296

Transistor count

3,3M

Condition

CPU only

Engineering sample?

No

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