Celeron J3455 vs Phenom II X3 P820
Aggregate performance score
Celeron J3455 outperforms Phenom II X3 P820 by a whopping 115% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and Celeron J3455 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2706 | 2158 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.16 |
| Market segment | Laptop | Desktop processor |
| Series | 3x AMD Phenom II | Intel Celeron |
| Architecture codename | Champlain (2010−2011) | Apollo Lake (2014−2016) |
| Release date | 12 May 2010 (14 years ago) | 30 August 2016 (8 years ago) |
| Launch price (MSRP) | no data | $107 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X3 P820 and Celeron J3455 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) | 4 (Quad-Core) |
| Threads | 3 | 4 |
| Base clock speed | no data | 1.5 GHz |
| Boost clock speed | 1.8 GHz | 2.3 GHz |
| Bus rate | 3600 MHz | no data |
| Multiplier | no data | 15 |
| L1 cache | 384 KB | no data |
| L2 cache | 1.5 MB | 2 MB |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 14 nm |
| Maximum core temperature | no data | 105 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X3 P820 and Celeron J3455 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 (Uniprocessor) |
| Socket | S1 | FCBGA1296 |
| Power consumption (TDP) | 25 Watt | 10 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Celeron J3455. 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) | no data |
| AES-NI | - | + |
| 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 | - |
| Status | no data | Launched |
| HD Audio | no data | + |
| RST | no data | - |
Security technologies
Phenom II X3 P820 and Celeron J3455 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Boot | no data | + |
| Secure Key | no data | + |
| Identity Protection | - | + |
| OS Guard | no data | - |
| Anti-Theft | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Celeron J3455 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| VT-i | no data | - |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Celeron J3455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s |
| Maximum memory size | no data | 8 GB |
| Max memory channels | no data | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel HD Graphics 500 |
| Max video memory | no data | 8 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 750 MHz |
| Execution Units | no data | 12 |
Graphics interfaces
Available interfaces and connections of Phenom II X3 P820 and Celeron J3455 integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| MIPI-DSI | no data | + |
Graphics API support
APIs supported by Phenom II X3 P820 and Celeron J3455 integrated GPUs, sometimes API versions are included.
| DirectX | no data | + |
| OpenGL | no data | + |
Peripherals
Specifications and connection of peripherals supported by Phenom II X3 P820 and Celeron J3455.
| PCIe version | no data | 2.0 |
| PCI Express lanes | no data | 6 |
| USB revision | no data | 2.0/3.0 |
| Total number of SATA ports | no data | 2 |
| Max number of SATA 6 Gb/s Ports | no data | 2 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | - |
| UART | no data | + |
Pros & cons summary
| Performance score | 0.68 | 1.46 |
| Recency | 12 May 2010 | 30 August 2016 |
| Physical cores | 3 | 4 |
| Threads | 3 | 4 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 25 Watt | 10 Watt |
Celeron J3455 has a 114.7% higher aggregate performance score, an age advantage of 6 years, 33.3% more physical cores and 33.3% more threads, a 221.4% more advanced lithography process, and 150% lower power consumption.
The Celeron J3455 is our recommended choice as it beats the Phenom II X3 P820 in performance tests.
Be aware that Phenom II X3 P820 is a notebook processor while Celeron J3455 is a desktop one.
Should you still have questions on choice between Phenom II X3 P820 and Celeron J3455, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
