Intel Core 2 Quad Q8400 vs Intel Core2 Duo E4300. Specifications, performance, tests

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

• Segment
  Desktop Desktop
• Family
  Intel Core2 Duo Intel Core2 Duo
• Generation
  2 1
• CPU group
  Intel Core 2 Quad Q8000/Q9000 Intel Core 2 Duo E4000/E6000
• Predecessor
  No No
• Successor
  No No

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.

• Frequency
  2.66 GHz 1.80 GHz
• CPU Cores
  4 2
• Turbo (1 Core)
  No No
• CPU Threads
  4 2
• Turbo (2 Cores)
  No turbo No turbo
• Hyperthreading
  No No
• Overclocking
  No Yes
• Core architecture
  normal normal

Overview of the types and quantities of RAM supported by Intel Core2 Duo E4300 and Intel Core 2 Quad Q8400. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  DDR2-800 / DDR3-1066 DDR2-1066 / DDR3-1333
• Max. Memory
  16 GB 16 GB
• ECC
  No No
• Memory channels
  2 2
• PCIe
  No data No data

• AES-NI
  No No

Analyze the TDP (Thermal Design Power) requirements of Intel Core 2 Quad Q8400 and Intel Core2 Duo E4300 to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  95 W 65 W
• TDP up
  No No
• TDP (PL2)
  No No
• TDP down
  No No
• Tjunction max.
  90 °C 70 °C

Information on architecture, interfaces, and additional instructions supported by Intel Core 2 Quad Q8400 and Intel Core2 Duo E4300, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-d VT-x
• ISA extensions
  MMX, SSE2, SSE3, SSE4.1 MMX, SSE, SSE2, SSE3
• L2-Cache
  4.00 MB 2.00 MB
• L3-Cache
  No No
• Architecture
  Yorkfield Conroe
• Technology
  45 nm 65 nm
• Socket
  LGA 775 LGA 775
• Release date
  Q2/2009 Q3/2007