i7-1255U vs Phenom X4 9950 BE (125W)
Primary details
Comparing Phenom X4 9950 BE (125W) and Core i7-1255U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 896 |
| Place by popularity | not in top-100 | 74 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Alder Lake-M |
| Power efficiency | no data | 53.78 |
| Architecture codename | Agena (2007−2008) | Alder Lake-U (2022) |
| Release date | October 2008 (16 years ago) | 23 February 2022 (2 years ago) |
Detailed specifications
Phenom X4 9950 BE (125W) and Core i7-1255U 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) | 10 (Deca-Core) |
| Threads | 4 | 12 |
| Base clock speed | no data | 1.7 GHz |
| Boost clock speed | 2.6 GHz | 4.7 GHz |
| L1 cache | 128 KB (per core) | 80K (per core) |
| L2 cache | 512 KB (per core) | 1.25 MB (per core) |
| L3 cache | 2 MB (shared) | 12 MB (shared) |
| Chip lithography | 65 nm | 10 nm |
| Die size | 285 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 450 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Phenom X4 9950 BE (125W) and Core i7-1255U 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 | 1 |
| Socket | AM2+ | Intel BGA 1744 |
| Power consumption (TDP) | 125 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X4 9950 BE (125W) and Core i7-1255U. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
Phenom X4 9950 BE (125W) and Core i7-1255U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X4 9950 BE (125W) and Core i7-1255U are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom X4 9950 BE (125W) and Core i7-1255U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4, DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz) |
Peripherals
Specifications and connection of peripherals supported by Phenom X4 9950 BE (125W) and Core i7-1255U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Physical cores | 4 | 10 |
| Threads | 4 | 12 |
| Chip lithography | 65 nm | 10 nm |
| Power consumption (TDP) | 125 Watt | 15 Watt |
i7-1255U has 150% more physical cores and 200% more threads, a 550% more advanced lithography process, and 733.3% lower power consumption.
We couldn't decide between Phenom X4 9950 BE (125W) and Core i7-1255U. We've got no test results to judge.
Note that Phenom X4 9950 BE (125W) is a desktop processor while Core i7-1255U is a notebook one.
Should you still have questions on choice between Phenom X4 9950 BE (125W) and Core i7-1255U, ask them in Comments section, and we shall answer.
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