EPYC 9654 vs Phenom II X3 P820
Aggregate performance score
EPYC 9654 outperforms Phenom II X3 P820 by a whopping 11370% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and EPYC 9654 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2754 | 6 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.36 |
| Market segment | Laptop | Server |
| Series | 3x AMD Phenom II | AMD EPYC |
| Power efficiency | 2.50 | 19.90 |
| Architecture codename | Champlain (2010−2011) | Genoa (2022−2023) |
| Release date | 12 May 2010 (14 years ago) | 10 November 2022 (2 years ago) |
| Launch price (MSRP) | no data | $11,805 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X3 P820 and EPYC 9654 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) | 96 |
| Threads | 3 | 192 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 1.8 GHz | 3.7 GHz |
| Bus rate | 3600 MHz | no data |
| Multiplier | no data | 24 |
| L1 cache | 384 KB | 64K (per core) |
| L2 cache | 1.5 MB | 1 MB (per core) |
| L3 cache | no data | 384 MB (shared) |
| Chip lithography | 45 nm | 5 nm, 6 nm |
| Die size | no data | 12x 72 mm2 |
| Number of transistors | no data | 78,840 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Phenom II X3 P820 and EPYC 9654 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 | 2 |
| Socket | S1 | SP5 |
| Power consumption (TDP) | 25 Watt | 360 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and EPYC 9654. 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 | - | + |
| AVX | - | + |
| VirusProtect | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and EPYC 9654 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and EPYC 9654. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-4800 |
| Maximum memory size | no data | 6 TiB |
| Maximum memory bandwidth | no data | 460.8 GB/s |
Peripherals
Specifications and connection of peripherals supported by Phenom II X3 P820 and EPYC 9654.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Performance score | 0.66 | 75.70 |
| Recency | 12 May 2010 | 10 November 2022 |
| Physical cores | 3 | 96 |
| Threads | 3 | 192 |
| Chip lithography | 45 nm | 5 nm |
| Power consumption (TDP) | 25 Watt | 360 Watt |
Phenom II X3 P820 has 1340% lower power consumption.
EPYC 9654, on the other hand, has a 11369.7% higher aggregate performance score, an age advantage of 12 years, 3100% more physical cores and 6300% more threads, and a 800% more advanced lithography process.
The EPYC 9654 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 EPYC 9654 is a server/workstation one.
Should you still have questions on choice between Phenom II X3 P820 and EPYC 9654, 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.
