UMC
| Socket | Model | Architecture | Core | ||||
| UMC | 1/2/3 | U5S 486-33 | x86 (32bit CISC) | 33 MHz | Watt | 1x U5S | |
| UMC | 1/2/3 | U5S 486-40 | x86 (32bit CISC) | 40 MHz | Watt | 1x U5S | |
| UMC | 1/2/3 | U5S 486-25 | x86 (32bit CISC) | 25 MHz | Watt | 1x U5S | |
| UMC | 1/2/3 | U5S 486-25/33 | x86 (32bit CISC) | 33 MHz | Watt | 1x U5S | |
| UMC | 1/2/3 | U5S 486-33/40 | x86 (32bit CISC) | 40 MHz | Watt | 1x U5S |
