Ryzen 9 9950X vs Phenom II X3 P820
Aggregate performance score
Ryzen 9 9950X outperforms Phenom II X3 P820 by a whopping 6162% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and Ryzen 9 9950X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2738 | 59 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 61.38 |
| Market segment | Laptop | Desktop processor |
| Series | 3x AMD Phenom II | no data |
| Power efficiency | 2.53 | 23.26 |
| Architecture codename | Champlain (2010−2011) | Granite Ridge (2024) |
| Release date | 12 May 2010 (14 years ago) | 15 August 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $649 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X3 P820 and Ryzen 9 9950X 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) | 16 (Hexadeca-Core) |
| Threads | 3 | 32 |
| Base clock speed | no data | 4.3 GHz |
| Boost clock speed | 1.8 GHz | 5.7 GHz |
| Bus rate | 3600 MHz | no data |
| L1 cache | 384 KB | 80 KB (per core) |
| L2 cache | 1.5 MB | 1 MB (per core) |
| L3 cache | no data | 64 MB (shared) |
| Chip lithography | 45 nm | 4 nm |
| Die size | no data | 2x 70.6 mm2 |
| Maximum core temperature | no data | 95 °C |
| Number of transistors | no data | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Phenom II X3 P820 and Ryzen 9 9950X 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 | AM5 |
| Power consumption (TDP) | 25 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Ryzen 9 9950X. 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) | SMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A |
| AES-NI | - | + |
| AVX | - | + |
| VirusProtect | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Ryzen 9 9950X are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Ryzen 9 9950X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon Graphics |
Peripherals
Specifications and connection of peripherals supported by Phenom II X3 P820 and Ryzen 9 9950X.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Performance score | 0.68 | 42.58 |
| Recency | 12 May 2010 | 15 August 2024 |
| Physical cores | 3 | 16 |
| Threads | 3 | 32 |
| Chip lithography | 45 nm | 4 nm |
| Power consumption (TDP) | 25 Watt | 170 Watt |
Phenom II X3 P820 has 580% lower power consumption.
Ryzen 9 9950X, on the other hand, has a 6161.8% higher aggregate performance score, an age advantage of 14 years, 433.3% more physical cores and 966.7% more threads, and a 1025% more advanced lithography process.
The Ryzen 9 9950X 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 Ryzen 9 9950X is a desktop one.
Should you still have questions on choice between Phenom II X3 P820 and Ryzen 9 9950X, ask them in Comments section, and we shall answer.
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