Core 2 Duo E8500 vs Phenom II X3 P820
Aggregate performance score
Core 2 Duo E8500 outperforms Phenom II X3 P820 by a moderate 19% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and Core 2 Duo E8500 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2631 | 2500 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.55 |
| Market segment | Laptop | Desktop processor |
| Series | 3x AMD Phenom II | no data |
| Architecture codename | Champlain (2010−2011) | Wolfdale (2008−2010) |
| Release date | 12 May 2010 (14 years ago) | January 2008 (16 years ago) |
| Current price | no data | $44 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X3 P820 and Core 2 Duo E8500 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) | 2 (Dual-core) |
| Threads | 3 | 2 |
| Base clock speed | no data | 3.16 GHz |
| Boost clock speed | 1.8 GHz | 3.17 GHz |
| Bus support | 3600 MHz | no data |
| L1 cache | 384 KB | 64 KB |
| L2 cache | 1.5 MB | 6 MB (shared) |
| L3 cache | no data | 0 KB |
| Chip lithography | 45 nm | 45 nm |
| Die size | no data | 107 mm2 |
| Maximum core temperature | no data | 72 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | no data | 410 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on Phenom II X3 P820 and Core 2 Duo E8500 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 | LGA775 |
| Power consumption (TDP) | 25 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Core 2 Duo E8500. You'll probably need this information if you require some particular technology.
| Instruction set extensions | integrated DDR3 Memory Controller, Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) | no data |
| AES-NI | no data | - |
| VirusProtect | + | no data |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | no data | + |
| Demand Based Switching | no data | - |
| FSB parity | no data | - |
| Status | no data | Discontinued |
Security technologies
Phenom II X3 P820 and Core 2 Duo E8500 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 Core 2 Duo E8500 are enumerated here.
| AMD-V | + | no data |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Core 2 Duo E8500. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1, DDR2, DDR3 |
Pros & cons summary
| Performance score | 0.68 | 0.81 |
| Physical cores | 3 | 2 |
| Threads | 3 | 2 |
| Power consumption (TDP) | 25 Watt | 65 Watt |
The Core 2 Duo E8500 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 Core 2 Duo E8500 is a desktop one.
Should you still have questions on choice between Phenom II X3 P820 and Core 2 Duo E8500, ask them in Comments section, and we shall answer.
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