AMD Opteron X3421 vs Intel Atom C3958. Specifications, performance, tests

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

• Family
  AMD Opteron Intel Atom
• CPU group
  AMD Opteron X3000 Intel Atom C3000
• Segment
  Desktop / Server Desktop / Server
• Generation
  0 2

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.

• Core architecture
  normal normal
• Overclocking
  No No
• Frequency
  2.10 GHz 2.00 GHz

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
  AMD Radeon R7 - 512 (Toronto) no iGPU
• GPU frequency
  0.80 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  8
• Shader
  512
• Max. displays
  3

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

• h265 / HEVC (8 bit)
  Decode No
• h265 / HEVC (10 bit)
  No No
• h264
  Decode / Encode No
• VP8
  No No
• VP9
  No No
• AV1
  No No
• AVC
  No No
• VC-1
  No No
• JPEG
  Decode No

Types, channel quantity of RAM supported by Intel Atom C3958 and AMD Opteron X3421. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-2400 DDR4-2400
• Max. Memory
  256 GB
• Memory channels
  2 2
• ECC
  Yes Yes

Compare the TDP requirements of TDP AMD Opteron X3421 and Intel Atom C3958 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  15 W 31 W
• TDP up
  35 W --
• TDP down
  12 W --
• Tjunction max.
  -- 100 °C

Architecture, interfaces, additional instructions supported by AMD Opteron X3421 and AMD Opteron X3421, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2 SSE4.1, SSE4.2
• L2-Cache
  2.00 MB 16.00 MB
• Architecture
  Toronto (Excavator) Denverton
• Technology
  28 nm 14 nm
• Virtualization
  AMD-V, AMD-Vt VT-x, VT-x EPT, VT-d
• Socket
  FP4 BGA 1310
• Release date
  Q2/2015 Q3/2017
• Part Number
  OX3421AAY43KA --