Celeron 2981U vs Phenom II X3 P820
Aggregate performance score
Phenom II X3 P820 outperforms Celeron 2981U by a minimal 2% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and Celeron 2981U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2755 | 2764 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 3x AMD Phenom II | Intel Celeron |
| Power efficiency | 2.50 | 4.10 |
| Architecture codename | Champlain (2010−2011) | Haswell (2013−2015) |
| Release date | 12 May 2010 (14 years ago) | 1 January 2014 (10 years ago) |
Detailed specifications
Phenom II X3 P820 and Celeron 2981U 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 | 3 (Tri-Core) | 2 (Dual-core) |
| Threads | 3 | 2 |
| Base clock speed | no data | 1.6 GHz |
| Boost clock speed | 1.8 GHz | 1.6 GHz |
| Bus rate | 3600 MHz | 5 GT/s |
| L1 cache | 384 KB | 128 KB |
| L2 cache | 1.5 MB | 512 KB |
| L3 cache | no data | 2 MB |
| Chip lithography | 45 nm | 22 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X3 P820 and Celeron 2981U 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 | S1 | FCBGA1168 |
| Power consumption (TDP) | 25 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Celeron 2981U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) | Intel® SSE4.1, Intel® SSE4.2 |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Smart Response | no data | - |
| GPIO | no data | + |
| Smart Connect | no data | + |
| FDI | no data | - |
| AMT | no data | 9.5 |
| Matrix Storage | no data | - |
| HD Audio | no data | + |
| RST | no data | + |
Security technologies
Phenom II X3 P820 and Celeron 2981U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | - |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Celeron 2981U are enumerated here.
| AMD-V | + | + |
| VT-d | no data | - |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Celeron 2981U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | no data | 16 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 25.6 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics for 4th Generation Intel Processors |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Graphics max frequency | no data | 1 GHz |
Graphics interfaces
Available interfaces and connections of Phenom II X3 P820 and Celeron 2981U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
Peripherals
Specifications and connection of peripherals supported by Phenom II X3 P820 and Celeron 2981U.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 12 |
| PCI support | no data | - |
| USB revision | no data | 3.0 |
| Total number of SATA ports | no data | 2 |
| Max number of SATA 6 Gb/s Ports | no data | 2 |
| Integrated IDE | no data | - |
| Number of USB ports | no data | 4 |
| Integrated LAN | no data | - |
| UART | no data | + |
Pros & cons summary
| Performance score | 0.66 | 0.65 |
| Recency | 12 May 2010 | 1 January 2014 |
| Physical cores | 3 | 2 |
| Threads | 3 | 2 |
| Chip lithography | 45 nm | 22 nm |
| Power consumption (TDP) | 25 Watt | 15 Watt |
Phenom II X3 P820 has a 1.5% higher aggregate performance score, and 50% more physical cores and 50% more threads.
Celeron 2981U, on the other hand, has an age advantage of 3 years, a 104.5% more advanced lithography process, and 66.7% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Phenom II X3 P820 and Celeron 2981U.
Should you still have questions on choice between Phenom II X3 P820 and Celeron 2981U, ask them in Comments section, and we shall answer.
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