Phenom II X2 N660 vs Phenom II X3 P820
Primary details
Comparing Phenom II X3 P820 and Phenom II X2 N660 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2740 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 3x AMD Phenom II | 2x AMD Phenom II |
| Power efficiency | 2.50 | no data |
| Architecture codename | Champlain (2010−2011) | Champlain (2010−2011) |
| Release date | 12 May 2010 (14 years ago) | 1 January 2011 (13 years ago) |
Detailed specifications
Phenom II X3 P820 and Phenom II X2 N660 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 |
| Boost clock speed | 1.8 GHz | 3 GHz |
| Bus rate | 3600 MHz | 3600 MHz |
| L1 cache | 384 KB | 256 KB |
| L2 cache | 1.5 MB | 2 MB |
| Chip lithography | 45 nm | 45 nm |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X3 P820 and Phenom II X2 N660 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.
| Socket | S1 | S1 |
| Power consumption (TDP) | 25 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Phenom II X2 N660. 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) | HyperTransport 3.0, SSE4A, AMD64, Enhanced Virus Protection, Vurtualization |
| VirusProtect | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Phenom II X2 N660 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Phenom II X2 N660. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
Pros & cons summary
| Recency | 12 May 2010 | 1 January 2011 |
| Physical cores | 3 | 2 |
| Threads | 3 | 2 |
| Power consumption (TDP) | 25 Watt | 35 Watt |
Phenom II X3 P820 has 50% more physical cores and 50% more threads, and 40% lower power consumption.
Phenom II X2 N660, on the other hand, has an age advantage of 7 months.
We couldn't decide between Phenom II X3 P820 and Phenom II X2 N660. We've got no test results to judge.
Should you still have questions on choice between Phenom II X3 P820 and Phenom II X2 N660, ask them in Comments section, and we shall answer.
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