Intel Core2 Duo E8400 vs Intel Core 2 Quad Q9500. 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 2
• CPU group
  Intel Core 2 Duo E7000/E8000 Intel Core 2 Quad Q8000/Q9000
• 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
  3.00 GHz 2.83 GHz
• CPU Cores
  2 4
• Turbo (1 Core)
  No No
• CPU Threads
  2 4
• Turbo (2 Cores)
  No turbo No turbo
• Hyperthreading
  No No
• Overclocking
  Yes No
• Core architecture
  normal normal

Overview of the types and quantities of RAM supported by Intel Core 2 Quad Q9500 and Intel Core2 Duo E8400. The supported memory frequencies may vary depending on the motherboard configuration.

• Memory type
  DDR2-1066 / DDR3-1333 DDR2-800 / DDR3-1066
• 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 Core2 Duo E8400 and Intel Core 2 Quad Q9500 to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

• TDP (PL1)
  65 W 95 W
• TDP up
  No No
• TDP (PL2)
  No No
• TDP down
  No No
• Tjunction max.
  80 °C 90 °C

Information on architecture, interfaces, and additional instructions supported by Intel Core2 Duo E8400 and Intel Core 2 Quad Q9500, including virtual machine technologies and fabrication processes.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x VT-x, VT-d
• ISA extensions
  MMX, SSE, SSE2, SSE3, SSE 4.1 MMX, SSE2, SSE3, SSE4.1
• L2-Cache
  6.00 MB 6.00 MB
• L3-Cache
  No No
• Architecture
  Wolfdale Yorkfield
• Technology
  45 nm 45 nm
• Socket
  LGA 775 LGA 775
• Release date
  Q1/2008 Q1/2010