Xeon E5450 vs Phenom II X3 P820
Aggregate performance score
Xeon E5450 outperforms Phenom II X3 P820 by a whopping 145% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and Xeon E5450 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2740 | 2083 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | 3x AMD Phenom II | no data |
| Power efficiency | 2.50 | 1.92 |
| Architecture codename | Champlain (2010−2011) | no data |
| Release date | 12 May 2010 (14 years ago) | 1 October 2007 (17 years ago) |
Detailed specifications
Phenom II X3 P820 and Xeon E5450 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) | no data |
| Threads | 3 | no data |
| Base clock speed | no data | 3 GHz |
| Boost clock speed | 1.8 GHz | no data |
| Bus rate | 3600 MHz | no data |
| L1 cache | 384 KB | no data |
| L2 cache | 1.5 MB | no data |
| L3 cache | no data | 12 MB L2 Cache |
| Chip lithography | 45 nm | 45 nm |
| Maximum core temperature | no data | 67 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| VID voltage range | no data | 0.85V-1.35V |
Compatibility
Information on Phenom II X3 P820 and Xeon E5450 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 | LGA771 |
| Power consumption (TDP) | 25 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Xeon E5450. 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 |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Demand Based Switching | no data | + |
| FSB parity | no data | + |
Security technologies
Phenom II X3 P820 and Xeon E5450 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Xeon E5450 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | + |
| EPT | no data | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Xeon E5450. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
Pros & cons summary
| Performance score | 0.66 | 1.62 |
| Recency | 12 May 2010 | 1 October 2007 |
| Power consumption (TDP) | 25 Watt | 80 Watt |
Phenom II X3 P820 has an age advantage of 2 years, and 220% lower power consumption.
Xeon E5450, on the other hand, has a 145.5% higher aggregate performance score.
The Xeon E5450 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 Xeon E5450 is a server/workstation one.
Should you still have questions on choice between Phenom II X3 P820 and Xeon E5450, ask them in Comments section, and we shall answer.
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