i7-6660U vs Phenom II X3 P820
Aggregate performance score
Core i7-6660U outperforms Phenom II X3 P820 by a whopping 244% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 P820 and Core i7-6660U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2754 | 1825 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 3x AMD Phenom II | Intel Core i7 |
| Power efficiency | 2.50 | 14.31 |
| Architecture codename | Champlain (2010−2011) | Skylake (2015−2016) |
| Release date | 12 May 2010 (14 years ago) | 20 March 2016 (8 years ago) |
| Launch price (MSRP) | no data | $415 |
Detailed specifications
Phenom II X3 P820 and Core i7-6660U 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 | 4 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 1.8 GHz | 3.4 GHz |
| Bus type | no data | OPI |
| Bus rate | 3600 MHz | 4 GT/s |
| Multiplier | no data | 24 |
| L1 cache | 384 KB | 128 KB |
| L2 cache | 1.5 MB | 512 KB |
| L3 cache | no data | 4 MB |
| Chip lithography | 45 nm | 14 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X3 P820 and Core i7-6660U 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 (Uniprocessor) |
| Socket | S1 | FCBGA1356 |
| Power consumption (TDP) | 25 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Core i7-6660U. 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) | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| VirusProtect | + | - |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| eDRAM | no data | 64 MB |
| My WiFi | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| SIPP | - | + |
| Smart Response | no data | + |
Security technologies
Phenom II X3 P820 and Core i7-6660U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Core i7-6660U 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 Phenom II X3 P820 and Core i7-6660U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4-2133, LPDDR3-1866, DDR3L-1600 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 34.134 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel Iris Graphics 540 |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.05 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of Phenom II X3 P820 and Core i7-6660U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Phenom II X3 P820 and Core i7-6660U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2304@24Hz |
| Max resolution over eDP | no data | 4096x2304@60Hz |
| Max resolution over DisplayPort | no data | 4096x2304@60Hz |
Graphics API support
APIs supported by Phenom II X3 P820 and Core i7-6660U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Phenom II X3 P820 and Core i7-6660U.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 12 |
Pros & cons summary
| Performance score | 0.66 | 2.27 |
| Recency | 12 May 2010 | 20 March 2016 |
| Physical cores | 3 | 2 |
| Threads | 3 | 4 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 25 Watt | 15 Watt |
Phenom II X3 P820 has 50% more physical cores.
i7-6660U, on the other hand, has a 243.9% higher aggregate performance score, an age advantage of 5 years, 33.3% more threads, a 221.4% more advanced lithography process, and 66.7% lower power consumption.
The Core i7-6660U is our recommended choice as it beats the Phenom II X3 P820 in performance tests.
Should you still have questions on choice between Phenom II X3 P820 and Core i7-6660U, ask them in Comments section, and we shall answer.
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