Intel Xeon W-11855M vs Intel Xeon W-11955M. Specifications, performance, tests

Background information about the processors being compared, series, generation and market segment.

• Segment
  Mobile Mobile
• Family
  Intel Xeon W Intel Xeon W
• Generation
  11 11
• CPU group
  Intel Xeon W-11000M Intel Xeon W-11000M

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• Frequency
  3.20 GHz 2.60 GHz
• CPU Cores
  6 8
• Turbo (1 Core)
  4.90 GHz 5.00 GHz
• CPU Threads
  12 16
• Hyperthreading
  Yes Yes
• Overclocking
  No No
• Core architecture
  normal normal

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• GPU name
  Intel UHD Graphics 11th Gen (32 EU) Intel UHD Graphics 11th Gen (32 EU)
• GPU frequency
  0.35 GHz 0.35 GHz
• GPU (Turbo)
  1.45 GHz 1.45 GHz
• Execution units
  32 32
• Shader
  256 256
• Max. displays
  3 3
• Generation
  11 11
• DirectX Version
  12 12
• Technology
  10 nm 10 nm
• Release date
  Q2/2021 Q2/2021

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

• h265 / HEVC (8 bit)
  Decode / Encode Decode / Encode
• h265 / HEVC (10 bit)
  Decode / Encode Decode / Encode
• h264
  Decode / Encode Decode / Encode
• VP9
  Decode / Encode Decode / Encode
• VP8
  Decode / Encode Decode / Encode
• AV1
  Decode Decode
• AVC
  Decode / Encode Decode / Encode
• VC-1
  Decode Decode
• JPEG
  Decode / Encode Decode / Encode

Types, channel quantity of RAM supported by Intel Xeon W-11955M and Intel Xeon W-11855M. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-3200 DDR4-3200
• Max. Memory
  128 GB 128 GB
• ECC
  Yes Yes
• Memory channels
  2 2
• PCIe version
  4.0 4.0
• PCIe lanes
  20 20

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP Intel Xeon W-11855M and Intel Xeon W-11955M to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  45 W 45 W
• TDP down
  35 W 35 W
• Tjunction max.
  100 °C 100 °C

Architecture, interfaces, additional instructions supported by Intel Xeon W-11855M and Intel Xeon W-11855M, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX-512 SSE4.1, SSE4.2, AVX2, AVX-512
• L3-Cache
  18.00 MB 24.00 MB
• Architecture
  Tiger Lake H Tiger Lake H
• Technology
  10 nm 10 nm
• Socket
  BGA 1787 BGA 1787
• Release date
  Q2/2021 Q2/2021