Intel Core i5-12450HX vs Intel Core Ultra 5 125H. Specifications, performance, tests

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

• CPU group
  Intel Core i 12000H -
• Family
  Intel Core i5 Intel Core Ultra Series 1
• Generation
  12 -
• Segment
  Mobile Mobile

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• A-Core
  4x Golden Cove -
• A-Core Frequency
  2.40 GHz (4.40 GHz) -
• B-Core
  4x Gracemont -
• B-Core Frequency
  1.80 GHz (3.10 GHz) -
• Core architecture
  hybrid (big.LITTLE) -
• CPU Cores
  8 14
• CPU Threads
  12 18
• Hyperthreading / SMT
  Yes -
• Overclocking
  Yes -
• E-core Base Clock
  - 0.7 GHz
• Efficient Cores
  - 8
• Low Power Efficient-cores
  - 2
• Max. Boost Clock
  - 4.5 GHz
• P-core Base Clock
  - 1.2 GHz
• Performance Cores
  - 4

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

• DirectX Version
  12 -
• Execution units
  32 -
• Generation
  11 -
• GPU Frequency
  300 MHz -
• GPU name
  Intel UHD Graphics 770 Intel Arc graphics
• GPU Turbo
  1300 MHz 2200 MHz
• Max. displays
  3 -
• Max. GPU Memory
  64 GB -
• Release date
  Q4/2021 -
• Shader
  256 -
• Technology
  10 nm -

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

• AV1
  Decode -
• H.264 / AVC
  Decode / Encode -
• h265 / HEVC (8 bit)
  Decode / Encode -
• h265 / HEVC (10 bit)
  Decode / Encode -
• JPEG
  Decode / Encode -
• VC-1
  Decode -
• VP8
  Decode / Encode -
• VP9
  Decode / Encode -

Types, channel quantity of RAM supported by Intel Core Ultra 5 125H and Intel Core i5-12450HX. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No -
• Max. Memory
  128 GB 96 GB
• Memory Bandwidth
  76.8 GB/s -
• Memory channels
  2 (Dual Channel) 2
• Memory type
  DDR4-3200DDR5-4800LPDDR4X-4266LPDDR5-5200 Up to LPDDR5/X 7467 MT/s
• PCIe
  5.0 x 20 -

• AES-NI
  Yes -

Compare the TDP requirements of TDP Intel Core i5-12450HX and Intel Core Ultra 5 125H Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  100 °C -
• TDP (PL1, legacy label)
  55 W -
• TDP (PL2)
  157 W -
• TDP down
  45 W -
• Maximum Turbo Power
  - 115 W
• Minimum Assured Power
  - 20 W
• TDP (PL1 / PBP, legacy combined label)
  - 28 W

Architecture, interfaces, additional instructions supported by Intel Core i5-12450HX and Intel Core Ultra 5 125H, virtual machine technologies and process technology.

• Architecture
  Alder Lake H -
• Chip design
  Monolithic -
• Documents
  Technical data sheet -
• Instruction set (ISA)
  x86-64 (64 bit) -
• ISA extensions
  SSE4.1, SSE4.2, AVX2, AVX2+ -
• L3-Cache
  12 MB 18 MB
• Operating systems
  Windows 10, Windows 11, Linux -
• Release date
  Q2/2022 Q4/2023
• Socket
  BGA 1744 FCBGA2049
• Technology
  10 nm -
• Virtualization
  VT-x, VT-x EPT, VT-d -
• Official specification sheet
  - https://cdrdv2-public.intel.com/851467/Intel-Core-Ultra-Series1-Series2-Series3-Comparison.pdf