Core i7 M 640 vs Celeron B820

  Core i7 M 640

Model

  Celeron B820

  Intel

Developer

  Intel

benchmarks
Total performance

  18.7

  2014

Release year

  2014

  Arrandale

Architecture

  Sandy Bridge

  32

Process (nm)

  32

  2

Cores

  2

Threads

  2

  4 MB SmartCache

Cache

  512KB + 2MB

  35.0

TDP, W

  35.0

Frequency

  1700

  3460

Frequency (turbo mode)

  -

benchmarks
Single-core performance

  38.7

benchmarks
Multi-core performance

  78.2

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System device ids

• BFEBFBFF000206A7

• Dell Latitude E6410
• HP EliteBook 8440p
• Dell Latitude E6510
• HP EliteBook 8540w
• Dell Precision M4500
• HP EliteBook 8540p
• HP EliteBook 8740w

Popular builds

• Samsung 300E4C/300E5C/300E7C
• Acer Aspire E1-531
• Asus X55A
• Packard EasyNote TE11HC
• Gateway NE56R
• Dell Inspiron 3520
• HP 1000 Notebook PC