The Intel Xeon W-11955M is a high end octa core SoC for laptops and mobile workstations. It is based on the Tiger Lake H45 generation and was announced in mid 2021. It integrates eight Willow Cove processor cores (16 threads thanks to HyperThreading). The base clock speed depends on the TDP setting and at 45 Watt is at 2.6 GHz. The single core boost speed can reach up to 5 GHz (ITBM 3.0, also two cores), all cores can reach up to 4.5 GHz. The CPU offers 24 MB level 3 cache and supports DDR4-3200 memory. Similar to the Core i9-11950H, the Xeon W-11955M supports SIPP, vPro and TXT. In addition to this, the Xeon line supports ECC memory.
Performance
The average W-11955M in our database is in the same league as the Ryzen 7 4800H, Core i7-11850H, Core i7-1360P, as far as multi-thread benchmark scores are concerned. This is a fairly fast chip, as of early 2023.
Your mileage may vary depending on how competent the cooling solution of your laptop is, and how high the CPU power limits are.
The SoC also included the improved Xe graphics card called UHD graphics with all 32 EUs.
Furthermore, Tiger Lake SoCs add PCIe 4 support (20 lanes in the H45 series), AI hardware acceleration, and the partial integration of Thunderbolt 4/USB 4 and Wi-Fi 6E in the chip.
Power consumption
This Xeon series chip has a default TDP, also known as the long-term power limit, of 35 W to 45 W, the expectation being that laptop makers will go for a higher value to get better performance.
The W-11955M is built with Intel's third-gen 10 nm process marketed as SuperFin for average, as of early 2023, energy efficiency.
| Codename | Tiger Lake-H | ||||||||||||||||||||||||||||||||||||||||
| Series | Intel Tiger Lake | ||||||||||||||||||||||||||||||||||||||||
Series: Tiger Lake Tiger Lake-H
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| Clock Rate | 2600 - 5000 MHz | ||||||||||||||||||||||||||||||||||||||||
| Level 1 Cache | 640 KB | ||||||||||||||||||||||||||||||||||||||||
| Level 2 Cache | 10 MB | ||||||||||||||||||||||||||||||||||||||||
| Level 3 Cache | 24 MB | ||||||||||||||||||||||||||||||||||||||||
| Number of Cores / Threads | 8 / 16 | ||||||||||||||||||||||||||||||||||||||||
| Power Consumption (TDP = Thermal Design Power) | 45 Watt | ||||||||||||||||||||||||||||||||||||||||
| Manufacturing Technology | 10 nm | ||||||||||||||||||||||||||||||||||||||||
| Max. Temperature | 100 °C | ||||||||||||||||||||||||||||||||||||||||
| Socket | BGA1787 | ||||||||||||||||||||||||||||||||||||||||
| Features | DDR4-3200 RAM (incl. ECC), PCIe 4, 8 GT/s bus, DL Boost, GNA, vPro, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMX, SMEP, SMAP, EIST, TM1, TM2, HT, Turbo, SST, AES-NI, RDRAND, RDSEED, SHA, TME | ||||||||||||||||||||||||||||||||||||||||
| GPU | Intel UHD Graphics Xe 32EUs (Tiger Lake-H) (350 - 1450 MHz) | ||||||||||||||||||||||||||||||||||||||||
| 64 Bit | 64 Bit support | ||||||||||||||||||||||||||||||||||||||||
| Architecture | x86 | ||||||||||||||||||||||||||||||||||||||||
| Announcement Date | 05/11/2021 | ||||||||||||||||||||||||||||||||||||||||
| Product Link (external) | ark.intel.com | ||||||||||||||||||||||||||||||||||||||||
- Average benchmark values
Lenovo ThinkPad P15 G2 20YQ0008GE: NVIDIA RTX A4000 Laptop GPU, 15.60", 2.7 kg
External Review » Lenovo ThinkPad P15 G2 20YQ0008GE
HP ZBook Fury 17 G8-4U9G1UT: NVIDIA RTX A5000 Laptop GPU, 17.30", 2.8 kg
External Review » HP ZBook Fury 17 G8-4U9G1UT
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