EPYC 7443 vs Phenom II X3 P820
Aggregate performance score
EPYC 7443 outperforms Phenom II X3 P820 by a whopping 5298% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3073 | 162 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 14.18 |
| Market segment | Laptop | Server |
| Series | 3x AMD Phenom II | AMD EPYC |
| Power efficiency | 1.01 | 6.84 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Champlain (2010−2011) | Milan (2021−2023) |
| Release date | 12 May 2010 (15 years ago) | 15 March 2021 (4 years ago) |
| Launch price (MSRP) | no data | $2,010 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Phenom II X3 P820 and EPYC 7443 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) | 24 (Tetracosa-Core) |
| Threads | 3 | 48 |
| Base clock speed | no data | 2.85 GHz |
| Boost clock speed | 1.8 GHz | 4 GHz |
| Bus rate | 3600 MHz | no data |
| Multiplier | no data | 28.5 |
| L1 cache | 384 KB | 64 KB (per core) |
| L2 cache | 1.5 MB | 512 KB (per core) |
| L3 cache | no data | 128 MB (shared) |
| Chip lithography | 45 nm | 7 nm+ |
| Die size | no data | 4x 81 mm2 |
| Number of transistors | no data | 16,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Phenom II X3 P820 and EPYC 7443 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 | SP3 |
| Power consumption (TDP) | 25 Watt | 200 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and EPYC 7443. 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 | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and EPYC 7443 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and EPYC 7443. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4-3200 |
| Maximum memory size | no data | 4 TiB |
| Maximum memory bandwidth | no data | 204.795 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Phenom II X3 P820 and EPYC 7443.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Performance score | 0.60 | 32.39 |
| Recency | 12 May 2010 | 15 March 2021 |
| Physical cores | 3 | 24 |
| Threads | 3 | 48 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 200 Watt |
Phenom II X3 P820 has 700% lower power consumption.
EPYC 7443, on the other hand, has a 5298.3% higher aggregate performance score, an age advantage of 10 years, 700% more physical cores and 1500% more threads, and a 542.9% more advanced lithography process.
The AMD EPYC 7443 is our recommended choice as it beats the AMD Phenom II X3 P820 in performance tests.
Be aware that Phenom II X3 P820 is a notebook processor while EPYC 7443 is a server/workstation one.
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