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Intel Xeon W-11955M

Intel W-11955M

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.

SeriesIntel Tiger Lake
CodenameTiger Lake-H

Series: Tiger Lake Tiger Lake-H

Intel Core i9-11900KB compare3.3 - 5.3 GHz8 / 16 cores24 MB L3
Intel Core i9-11900H compare2.5 - 4.9 GHz8 / 16 cores24 MB L3
Intel Core i9-11950H compare2.6 - 5 GHz8 / 16 cores24 MB L3
Intel Xeon W-11955M « 2.6 - 5 GHz8 / 16 cores24 MB L3
Intel Core i7-11850H compare2.5 - 4.8 GHz8 / 16 cores24 MB L3
Intel Core i7-11800H compare2.3 - 4.6 GHz8 / 16 cores24 MB L3
Intel Xeon W-11855M compare3.2 - 4.9 GHz6 / 12 cores18 MB L3
Intel Core i5-11500B compare3.3 - 4.6 GHz6 / 12 cores12 MB L3
Intel Core i5-11400H compare2.7 - 4.5 GHz6 / 12 cores12 MB L3
Intel Core i5-11260H compare2.6 - 4.4 GHz6 / 12 cores12 MB L3
Clock Rate2600 - 5000 MHz
Level 1 Cache640 KB
Level 2 Cache10 MB
Level 3 Cache24 MB
Number of Cores / Threads8 / 16
Power Consumption (TDP = Thermal Design Power)45 Watt
Manufacturing Technology10 nm
Max. Temperature100 °C
SocketBGA1787
FeaturesDDR4-3200 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
GPUIntel UHD Graphics Xe 32EUs (Tiger Lake-H) (350 - 1450 MHz)
64 Bit64 Bit support
Architecturex86
Announcement Date05/11/2021
Product Link (external)ark.intel.com

Benchmarks

Cinebench R23 - Cinebench R23 Multi Core
min: 10862     avg: 11637     median: 11637 (11%)     max: 12412 Points
Cinebench R23 - Cinebench R23 Single Core
min: 1480     avg: 1551     median: 1550.5 (66%)     max: 1621 Points
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
1846 Points (12%)
095190285380475570665760855950104511401235133014251520161517101805Tooltip
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
13.4 fps (24%)
05101520Tooltip
R Benchmark 2.5 - R Benchmark 2.5 *
0.6 sec (12%)
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Single-Core
min: 1487     avg: 1587     median: 1586.5 (62%)     max: 1686 points
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Multi-Core
min: 8349     avg: 9058     median: 9057.5 (16%)     max: 9766 points
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
33776 points (34%)
Power Consumption - Prime95 Power Consumption - external Monitor *
89.3 Watt (15%)
0102030405060708090100Tooltip
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
98.2 Watt (18%)
0102030405060708090100Tooltip
Power Consumption - Idle Power Consumption 150cd 1min *
27.3 Watt (30%)
05101520253035Tooltip
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
18.8 Points per Watt (14%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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