Phenom II X3 P820 vs Core 2 Duo E6600
Aggregate performance score
Phenom II X3 P820 outperforms Core 2 Duo E6600 by a moderate 14% based on our aggregate benchmark results.
Primary details
Comparing Core 2 Duo (Desktop) E6600 and Phenom II X3 P820 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2823 | 2754 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | Core 2 Duo (Desktop) | 3x AMD Phenom II |
| Power efficiency | 0.84 | 2.50 |
| Architecture codename | Conroe (2006−2007) | Champlain (2010−2011) |
| Release date | no data | 12 May 2010 (14 years ago) |
Detailed specifications
Core 2 Duo (Desktop) E6600 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 | 2 (Dual-core) | 3 (Tri-Core) |
| Threads | 2 | 3 |
| Boost clock speed | 2.4 GHz | 1.8 GHz |
| Bus rate | 1066 MHz | 3600 MHz |
| L1 cache | 64 KB | 384 KB |
| L2 cache | 4 MB | 1.5 MB |
| L3 cache | 0 KB | no data |
| Chip lithography | 65 nm | 45 nm |
| Die size | 143 mm2 | no data |
| Number of transistors | 291 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Duo (Desktop) E6600 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 | 1 | no data |
| Socket | 775 | S1 |
| Power consumption (TDP) | 65 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo (Desktop) E6600 and Phenom II X3 P820. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) |
| VirusProtect | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Duo (Desktop) E6600 and Phenom II X3 P820 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo (Desktop) E6600 and Phenom II X3 P820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR3 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Pros & cons summary
| Performance score | 0.58 | 0.66 |
| Physical cores | 2 | 3 |
| Threads | 2 | 3 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 65 Watt | 25 Watt |
Phenom II X3 P820 has a 13.8% higher aggregate performance score, 50% more physical cores and 50% more threads, a 44.4% more advanced lithography process, and 160% lower power consumption.
The Phenom II X3 P820 is our recommended choice as it beats the Core 2 Duo E6600 in performance tests.
Note that Core 2 Duo E6600 is a desktop processor while Phenom II X3 P820 is a notebook one.
Should you still have questions on choice between Core 2 Duo E6600 and Phenom II X3 P820, ask them in Comments section, and we shall answer.
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