Mobile Sempron SI-40 vs Core i7-2840QM
Primary details
Comparing Core i7-2840QM and Mobile Sempron SI-40 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1664 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i7 | AMD Mobile Sempron |
| Architecture codename | Sandy Bridge (2011−2013) | Sable (2008−2009) |
| Release date | 4 September 2011 (12 years ago) | 4 July 2008 (15 years ago) |
| Current price | no data | $7.54 |
Detailed specifications
Core i7-2840QM and Mobile Sempron SI-40 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 | 4 (Quad-Core) | 1 (Single-Core) |
| Threads | 8 | 1 |
| Boost clock speed | 2.4 GHz | 2 GHz |
| Bus support | 4 × 5 GT/s | 1800 MHz |
| L1 cache | 256 KB | no data |
| L2 cache | 1 MB | 512 KB |
| L3 cache | 8 MB | no data |
| Chip lithography | 32 nm | 65 nm |
| Die size | 216 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 1160 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-2840QM and Mobile Sempron SI-40 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 (Uniprocessor) | no data |
| Socket | Socket G2 | S1g2 |
| Power consumption (TDP) | 45 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-2840QM and Mobile Sempron SI-40. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 65 nm, 1.075 - 1.125V |
| AES-NI | + | no data |
| FMA | + | no data |
| AVX | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
Security technologies
Core i7-2840QM and Mobile Sempron SI-40 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-2840QM and Mobile Sempron SI-40 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-2840QM and Mobile Sempron SI-40. Depending on the motherboard, higher memory frequencies may be supported.
| Maximum memory size | 32 GB | no data |
| Maximum memory bandwidth | 25.598 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 3000 | no data |
Pros & cons summary
| Recency | 4 September 2011 | 4 July 2008 |
| Physical cores | 4 | 1 |
| Threads | 8 | 1 |
| Chip lithography | 32 nm | 65 nm |
| Power consumption (TDP) | 45 Watt | 25 Watt |
We couldn't decide between Core i7-2840QM and Mobile Sempron SI-40. We've got no test results to judge.
Should you still have questions on choice between Core i7-2840QM and Mobile Sempron SI-40, ask them in Comments section, and we shall answer.
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