Xeon Gold 6442Y vs i7-1255U
Aggregate performance score
Xeon Gold 6442Y outperforms Core i7-1255U by a whopping 328% based on our aggregate benchmark results.
Primary details
Comparing Core i7-1255U and Xeon Gold 6442Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 896 | 98 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 51.89 |
| Market segment | Laptop | Server |
| Series | Intel Alder Lake-M | no data |
| Power efficiency | 53.85 | 15.36 |
| Architecture codename | Alder Lake-U (2022) | Sapphire Rapids (2023−2024) |
| Release date | 23 February 2022 (2 years ago) | 10 January 2023 (1 year ago) |
| Launch price (MSRP) | no data | $2,065 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-1255U and Xeon Gold 6442Y 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 | 10 (Deca-Core) | 24 (Tetracosa-Core) |
| Threads | 12 | 48 |
| Base clock speed | 1.7 GHz | 2.6 GHz |
| Boost clock speed | 4.7 GHz | 4 GHz |
| L1 cache | 80K (per core) | 80K (per core) |
| L2 cache | 1.25 MB (per core) | 2 MB (per core) |
| L3 cache | 12 MB (shared) | 60 MB |
| Chip lithography | 10 nm | Intel 7 nm |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | no data | 79 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Core i7-1255U and Xeon Gold 6442Y 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 | Intel BGA 1744 | FCLGA4677 |
| Power consumption (TDP) | 15 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-1255U and Xeon Gold 6442Y. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Deep Learning Boost | - | + |
Security technologies
Core i7-1255U and Xeon Gold 6442Y technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-1255U and Xeon Gold 6442Y are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-1255U and Xeon Gold 6442Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 | DDR5-4800, DDR5-4400 |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz) | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-1255U and Xeon Gold 6442Y.
| PCIe version | 4.0 | 5 |
| PCI Express lanes | 20 | 80 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 8.53 | 36.50 |
| Recency | 23 February 2022 | 10 January 2023 |
| Physical cores | 10 | 24 |
| Threads | 12 | 48 |
| Power consumption (TDP) | 15 Watt | 225 Watt |
i7-1255U has 1400% lower power consumption.
Xeon Gold 6442Y, on the other hand, has a 327.9% higher aggregate performance score, an age advantage of 10 months, and 140% more physical cores and 300% more threads.
The Xeon Gold 6442Y is our recommended choice as it beats the Core i7-1255U in performance tests.
Be aware that Core i7-1255U is a notebook processor while Xeon Gold 6442Y is a server/workstation one.
Should you still have questions on choice between Core i7-1255U and Xeon Gold 6442Y, ask them in Comments section, and we shall answer.
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