Pentium D 840 EE vs Celeron M 390
Primary details
Comparing Celeron M 390 and Pentium D 840 EE processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Celeron M | no data |
| Architecture codename | Dothan (2004−2005) | Smithfield (2005) |
| Release date | no data | May 2005 (19 years ago) |
Detailed specifications
Celeron M 390 and Pentium D 840 EE 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) | 2 (Dual-core) |
| Threads | 1 | 4 |
| Base clock speed | 1.7 GHz | no data |
| Boost clock speed | 1.7 GHz | 3.2 GHz |
| Bus rate | 400 MHz | no data |
| L1 cache | no data | 28 KB |
| L2 cache | no data | 2 MB |
| L3 cache | 1 MB L2 KB | 0 KB |
| Chip lithography | 90 nm | 90 nm |
| Die size | no data | 206 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 169 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| VID voltage range | 1.004V-1.292V | no data |
Compatibility
Information on Celeron M 390 and Pentium D 840 EE 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 | 2 |
| Socket | PPGA478, H-PBGA479 | 775 |
| Power consumption (TDP) | 21 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron M 390 and Pentium D 840 EE. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | - | + |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | - | no data |
| Demand Based Switching | - | no data |
| PAE | 32 Bit | no data |
| FSB parity | - | no data |
| Status | Discontinued | no data |
Security technologies
Celeron M 390 and Pentium D 840 EE 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 390 and Pentium D 840 EE are enumerated here.
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron M 390 and Pentium D 840 EE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1, DDR2, DDR3 |
Pros & cons summary
| Physical cores | 1 | 2 |
| Threads | 1 | 4 |
| Power consumption (TDP) | 21 Watt | 130 Watt |
Celeron M 390 has 519% lower power consumption.
Pentium D 840 EE, on the other hand, has 100% more physical cores and 300% more threads.
We couldn't decide between Celeron M 390 and Pentium D 840 EE. We've got no test results to judge.
Be aware that Celeron M 390 is a notebook processor while Pentium D 840 EE is a desktop one.
Should you still have questions on choice between Celeron M 390 and Pentium D 840 EE, ask them in Comments section, and we shall answer.
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