Opteron 156 vs Celeron M 420
Primary details
Comparing Celeron M 420 and Opteron 156 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Celeron M | no data |
| Architecture codename | Yonah (2005−2006) | Venus (2004−2005) |
| Release date | no data (2024 years ago) | 4 May 2005 (19 years ago) |
Detailed specifications
Celeron M 420 and Opteron 156 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 1 (Single-Core) | 1 (Single-Core) |
| Threads | 1 | 1 |
| Base clock speed | 1.6 GHz | 3 GHz |
| Boost clock speed | 1.6 GHz | 3 GHz |
| Bus rate | 533 MHz | no data |
| L1 cache | no data | 128 KB |
| L2 cache | no data | 1 MB |
| L3 cache | 1 MB L2 KB | 0 KB |
| Chip lithography | 65 nm | 90 nm |
| Die size | no data | 115 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 114 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.0V-1.3V | no data |
Compatibility
Information on Celeron M 420 and Opteron 156 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | no data | 1 |
| Socket | PPGA478 | 939 |
| Power consumption (TDP) | 27 Watt | 104 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron M 420 and Opteron 156. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | - | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | - | no data |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
Security technologies
Celeron M 420 and Opteron 156 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron M 420 and Opteron 156 are enumerated here.
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron M 420 and Opteron 156. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Pros & cons summary
| Chip lithography | 65 nm | 90 nm |
| Power consumption (TDP) | 27 Watt | 104 Watt |
Celeron M 420 has a 38.5% more advanced lithography process, and 285.2% lower power consumption.
We couldn't decide between Celeron M 420 and Opteron 156. We've got no test results to judge.
Be aware that Celeron M 420 is a notebook processor while Opteron 156 is a server/workstation one.
Should you still have questions on choice between Celeron M 420 and Opteron 156, ask them in Comments section, and we shall answer.
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