Phenom II X3 P820 vs Xeon E5-2620 v3
Aggregate performance score
Xeon E5-2620 v3 outperforms Phenom II X3 P820 by a whopping 645% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5-2620 v3 and Phenom II X3 P820 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1232 | 2740 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | no data | 3x AMD Phenom II |
| Power efficiency | 5.48 | 2.50 |
| Architecture codename | Haswell-EP (2014−2015) | Champlain (2010−2011) |
| Release date | 8 September 2014 (10 years ago) | 12 May 2010 (14 years ago) |
Detailed specifications
Xeon E5-2620 v3 and Phenom II X3 P820 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 | 6 (Hexa-Core) | 3 (Tri-Core) |
| Threads | 12 | 3 |
| Base clock speed | 2.4 GHz | no data |
| Boost clock speed | 3.2 GHz | 1.8 GHz |
| Bus rate | 8 GT/s | 3600 MHz |
| L1 cache | 64K (per core) | 384 KB |
| L2 cache | 256K (per core) | 1.5 MB |
| L3 cache | 15 MB (shared) | no data |
| Chip lithography | 22 nm | 45 nm |
| Die size | 356 mm2 | no data |
| Maximum core temperature | 73 °C | no data |
| Number of transistors | 2,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon E5-2620 v3 and Phenom II X3 P820 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 | 2 | no data |
| Socket | FCLGA2011 | S1 |
| Power consumption (TDP) | 85 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2620 v3 and Phenom II X3 P820. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX2 | Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) |
| AES-NI | + | - |
| AVX | + | - |
| VirusProtect | - | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | no data |
| PAE | 46 Bit | no data |
Security technologies
Xeon E5-2620 v3 and Phenom II X3 P820 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2620 v3 and Phenom II X3 P820 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-2620 v3 and Phenom II X3 P820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1600, DDR4-1866 | DDR3 |
| Maximum memory size | 768 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 59 GB/s | no data |
| ECC memory support | + | - |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2620 v3 and Phenom II X3 P820.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 40 | no data |
Pros & cons summary
| Performance score | 4.92 | 0.66 |
| Recency | 8 September 2014 | 12 May 2010 |
| Physical cores | 6 | 3 |
| Threads | 12 | 3 |
| Chip lithography | 22 nm | 45 nm |
| Power consumption (TDP) | 85 Watt | 25 Watt |
Xeon E5-2620 v3 has a 645.5% higher aggregate performance score, an age advantage of 4 years, 100% more physical cores and 300% more threads, and a 104.5% more advanced lithography process.
Phenom II X3 P820, on the other hand, has 240% lower power consumption.
The Xeon E5-2620 v3 is our recommended choice as it beats the Phenom II X3 P820 in performance tests.
Be aware that Xeon E5-2620 v3 is a server/workstation processor while Phenom II X3 P820 is a notebook one.
Should you still have questions on choice between Xeon E5-2620 v3 and Phenom II X3 P820, ask them in Comments section, and we shall answer.
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