While IBM and Intel, and Microsoft dominated the PC industry, the beginnings of discontent were starting. “RISC” microprocessors were being introduced. Viewed a niche market, RISC began to grow in popularity.
| Year | Qtr | AMD | ARM (Acorn) | DEC/Alpha | Intel | IBM PowerPC | MIPS |
| 1983 | 1Q | ||||||
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| 1984 | 1Q | MIPS I* (R2000) | |||||
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| 1985 | 1Q | ARMv1* (ARM1) | |||||
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| 4Q | 80386DX |
| 1986 | 1Q | 29332/ 29331 | |||||
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| 1987 | 1Q | 29000 | ARMv2* (ARM2) | ||||
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| 1988 | 1Q | i960 80960 | MIPS I* (R3000) | ||||
| 2Q | 80386SX | ||||||
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| 4Q |
| 1989 | 1Q | ARMv2aS* (ARM3) | i860 80860 | ||||
| 2Q | 80486DX | ||||||
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| 4Q |
* Year specification was released
| Year | Qtr | Motorola | NS | SPARC |
| 1983 | 1Q | 6804, 68120, 6811,12 | |||||
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| 1984 | 1Q | 68008, 68020 | |||||
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| 1986 | 1Q | ||||||
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| 1987 | 1Q | 68030 | SPARC V7 (Sun SPARC) | ||||
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| 1988 | 1Q | ||||||
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| 1989 | 1Q | ||||||
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