Intel Core i9-12900HX vs Intel Core i5-1235U. Specifications, performance, tests

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

• Family
  Intel Core i9 Intel Core i5
• CPU group
  Intel Core i 12000H Intel Core i 1200P/1200U
• Segment
  Mobile Mobile
• Generation
  12 12

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

• CPU Cores / Threads
  16 / 24 10 / 12
• Core architecture
  hybrid (big.LITTLE) hybrid (big.LITTLE)
• A-Core
  8x Golden Cove 2x Golden Cove
• B-Core
  8x Gracemont 8x Gracemont
• Overclocking
  Yes No

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

• GPU name
  Intel UHD Graphics 770 Intel Iris Xe Graphics 80 (Alder Lake)
• GPU frequency
  0.30 GHz 0.35 GHz
• GPU (Turbo)
  1.55 GHz 1.20 GHz
• Execution units
  32 80
• Shader
  256 640
• Max. GPU Memory
  64 GB 64 GB
• Max. displays
  3 4
• Generation
  11 13
• Direct X
  12 12.1
• Technology
  10 nm 10 nm
• Release date
  Q4/2021 Q1/2022

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

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

Overview of the types and quantities of RAM supported by Intel Core i5-1235U and Intel Core i9-12900HX. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200
• Max. Memory
  128 GB 64 GB
• Memory channels
  2 (Dual Channel) 2
• ECC
  No No
• PCIe
  5.0 x 20 4.0 x 28
• AES-NI
  Yes Yes

Analyze the TDP (Thermal Design Power) requirements of Intel Core i9-12900HX and Intel Core i5-1235U to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  55 W 15 W
• TDP (PL2)
  157 W 55 W
• TDP up
  86 W --
• TDP down
  45 W --
• Tjunction max.
  100 °C 100 °C

Information on architecture, interfaces, and additional instructions supported by Intel Core i9-12900HX and Intel Core i5-1235U, including virtual machine technologies and fabrication processes.

• Technology
  10 nm 10 nm
• Socket
  BGA 1744 BGA 1744
• L2-Cache
  14.00 MB 6.50 MB
• L3-Cache
  30.00 MB 12.00 MB
• Architecture
  Alder Lake H Alder Lake U
• Virtualization
  VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX2+ SSE4.1, SSE4.2, AVX2
• Release date
  Q2/2022 Q1/2022