Sempron X2 2100 vs Core i5-661
Primary details
Comparing Core i5-661 and Sempron X2 2100 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2013 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.35 | no data |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Clarkdale (2010−2011) | Brisbane (2001−2008) |
| Release date | 7 January 2010 (14 years ago) | March 2008 (16 years ago) |
| Launch price (MSRP) | $252 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i5-661 and Sempron X2 2100 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 3.333 GHz | no data |
| Boost clock speed | 3.6 GHz | 1.8 GHz |
| L1 cache | 64 KB (per core) | 128 KB |
| L2 cache | 256 KB (per core) | 256 KB |
| L3 cache | 4 MB (shared) | 0 KB |
| Chip lithography | 32 nm | 65 nm |
| Die size | 81 mm2 | 118 mm2 |
| Maximum core temperature | 70 °C | no data |
| Number of transistors | 382 million | 221 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i5-661 and Sempron X2 2100 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 | 2 |
| Socket | 1156 | AM2 |
| Power consumption (TDP) | 87 Watt | 65 Watt |
Security technologies
Core i5-661 and Sempron X2 2100 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-661 and Sempron X2 2100 are enumerated here.
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-661 and Sempron X2 2100. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
| Maximum memory bandwidth | 21 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-661 and Sempron X2 2100.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 16 | no data |
Pros & cons summary
| Threads | 4 | 2 |
| Chip lithography | 32 nm | 65 nm |
| Power consumption (TDP) | 87 Watt | 65 Watt |
i5-661 has 100% more threads, and a 103.1% more advanced lithography process.
Sempron X2 2100, on the other hand, has 33.8% lower power consumption.
We couldn't decide between Core i5-661 and Sempron X2 2100. We've got no test results to judge.
Should you still have questions on choice between Core i5-661 and Sempron X2 2100, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
