Intel Atom D2550 vs Intel Pentium 4405U. Specifications, performance, tests

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

• CPU group
  Intel Atom D2000 Intel Pentium 4000
• Family
  Intel Atom Intel Pentium
• Generation
  1 6
• Segment
  Desktop / Server Mobile

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

• Base Frequency
  1.86 GHz 2.1 GHz
• Core architecture
  normal normal
• CPU Cores
  2 2
• CPU Threads
  4 4
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  No No
• Turbo Frequency (1 Core)
  No turbo No turbo
• Turbo Frequency (2 Cores)
  No turbo No turbo

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
  10.1 12.0
• Execution units
  4 12
• Generation
  - 9
• GPU Frequency
  640 MHz 300 MHz
• GPU name
  Intel GMA 3650 Intel HD Graphics 510
• GPU Turbo
  No turbo 950 MHz
• Max. displays
  2 3
• Max. GPU Memory
  - 32 GB
• Release date
  Q4/2008 Q1/2015
• Shader
  32 96
• Technology
  65 nm 14 nm

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

• AV1
  No No
• H.264 / AVC
  No Decode / Encode
• h265 / HEVC (8 bit)
  No Decode / Encode
• h265 / HEVC (10 bit)
  No Decode
• JPEG
  No Decode
• VC-1
  No Decode
• VP8
  No Decode / Encode
• VP9
  No Decode

Types, channel quantity of RAM supported by Intel Pentium 4405U and Intel Atom D2550. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  No No
• Memory channels
  1 2
• Memory type
  DDR3-1066 DDR4-2133
• PCIe lanes
  - 10
• PCIe version
  - 2.0

• AES-NI
  No Yes

Compare the TDP requirements of TDP Intel Atom D2550 and Intel Pentium 4405U Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• TDP (PL1, legacy label)
  10 W 15 W

Architecture, interfaces, additional instructions supported by Intel Atom D2550 and Intel Pentium 4405U, virtual machine technologies and process technology.

• Architecture
  Cedarview Skylake U
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE3 SSE4.1, SSE4.2
• L3-Cache
  1 MB 2 MB
• Release date
  Q1/2012 Q3/2015
• Socket
  BGA 559 BGA 1356
• Technology
  32 nm 14 nm
• Virtualization
  None VT-x, VT-x EPT, VT-d