Pentium D 840 vs Celeron 1020E
Primary details
Comparing Celeron 1020E and Pentium D 840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2538 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Celeron | no data |
| Power efficiency | 2.40 | no data |
| Architecture codename | Ivy Bridge (2012−2013) | Smithfield (2005) |
| Release date | 20 January 2013 (11 years ago) | May 2005 (19 years ago) |
Detailed specifications
Celeron 1020E and Pentium D 840 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 | 2 (Dual-core) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Base clock speed | 2.2 GHz | 3.2 GHz |
| Boost clock speed | 2.2 GHz | 3.2 GHz |
| L1 cache | 64K (per core) | 28 KB |
| L2 cache | 256K (per core) | 2 MB |
| L3 cache | 2 MB (shared) | 0 KB |
| Chip lithography | 22 nm | 90 nm |
| Die size | 118 mm2 | 206 mm2 |
| Maximum core temperature | 100 °C | 70 °C |
| Maximum case temperature (TCase) | 105 °C | no data |
| Number of transistors | 1,400 million | 169 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 1.2V-1.4V |
Compatibility
Information on Celeron 1020E and Pentium D 840 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 | 1 | 2 |
| Socket | G2 (988B) | PLGA775 |
| Power consumption (TDP) | 35 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron 1020E and Pentium D 840. 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 | + |
| Thermal Monitoring | + | - |
| Demand Based Switching | no data | - |
| PAE | no data | 32 Bit |
| FSB parity | no data | - |
Security technologies
Celeron 1020E and Pentium D 840 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron 1020E and Pentium D 840 are enumerated here.
| VT-d | no data | - |
| VT-x | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron 1020E and Pentium D 840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2, DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics (Ivy Bridge) | no data |
Pros & cons summary
| Chip lithography | 22 nm | 90 nm |
| Power consumption (TDP) | 35 Watt | 130 Watt |
Celeron 1020E has a 309.1% more advanced lithography process, and 271.4% lower power consumption.
We couldn't decide between Celeron 1020E and Pentium D 840. We've got no test results to judge.
Be aware that Celeron 1020E is a notebook processor while Pentium D 840 is a desktop one.
Should you still have questions on choice between Celeron 1020E and Pentium D 840, ask them in Comments section, and we shall answer.
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