i7-6660U vs Mobile Sempron SI-40
Aggregate performance score
Core i7-6660U outperforms Mobile Sempron SI-40 by a whopping 1035% based on our aggregate benchmark results.
Primary details
Comparing Mobile Sempron SI-40 and Core i7-6660U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3239 | 1825 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Mobile Sempron | Intel Core i7 |
| Power efficiency | 0.76 | 14.31 |
| Architecture codename | Sable (2008−2009) | Skylake (2015−2016) |
| Release date | 4 July 2008 (16 years ago) | 20 March 2016 (8 years ago) |
| Launch price (MSRP) | no data | $415 |
Detailed specifications
Mobile Sempron SI-40 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 | 1 (Single-Core) | 2 (Dual-core) |
| Threads | 1 | 4 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 2 GHz | 3.4 GHz |
| Bus type | no data | OPI |
| Bus rate | 1800 MHz | 4 GT/s |
| Multiplier | no data | 24 |
| L1 cache | no data | 128 KB |
| L2 cache | 512 KB | 512 KB |
| L3 cache | no data | 4 MB |
| Chip lithography | 65 nm | 14 nm |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Mobile Sempron SI-40 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 | S1g2 | FCBGA1356 |
| Power consumption (TDP) | 25 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Mobile Sempron SI-40 and Core i7-6660U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 65 nm, 1.075 - 1.125V | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| 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
Mobile Sempron SI-40 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 Mobile Sempron SI-40 and Core i7-6660U are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Mobile Sempron SI-40 and Core i7-6660U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | 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 Mobile Sempron SI-40 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 Mobile Sempron SI-40 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 Mobile Sempron SI-40 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 Mobile Sempron SI-40 and Core i7-6660U.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 12 |
Pros & cons summary
| Performance score | 0.20 | 2.27 |
| Recency | 4 July 2008 | 20 March 2016 |
| Physical cores | 1 | 2 |
| Threads | 1 | 4 |
| Chip lithography | 65 nm | 14 nm |
| Power consumption (TDP) | 25 Watt | 15 Watt |
i7-6660U has a 1035% higher aggregate performance score, an age advantage of 7 years, 100% more physical cores and 300% more threads, a 364.3% more advanced lithography process, and 66.7% lower power consumption.
The Core i7-6660U is our recommended choice as it beats the Mobile Sempron SI-40 in performance tests.
Should you still have questions on choice between Mobile Sempron SI-40 and Core i7-6660U, ask them in Comments section, and we shall answer.
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