Intel Core2 Duo E8400
Intel Core 2 Quad Q9300
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Intel Core2 Duo E8400 vs Intel Core 2 Quad Q9300

Overall score
star star star star star
Released
Q1/2008
Released
Q1/2008
Overall score
star star star star star

Which one of the central processing units is better: Intel Core2 Duo E8400 or Intel Core 2 Quad Q9300? On this page we compare the technical data and benchmark results of different CPUs.

The Intel Core2 Duo E8400 has cores and threads with maximum working frequency of . The Intel Core2 Duo E8400 was released on Q1/2008.

The Intel Core 2 Quad Q9300 has 4 cores with threads and of frequency. The Intel Core 2 Quad Q9300 was released on Q1/2008.

Differences
Reasons to consider
Intel Core2 Duo E8400
Report a bug
  • Higher clock speed
    3.00 GHz left arrow 2.50 GHz
    Around -20% better clock speed
  • Performance per watt
    65 W left arrow 95 W
    About 1.46 0.97 times less performance per watt
Reasons to consider
Intel Core 2 Quad Q9300
Report a bug
Specifications
Complete list of technical specifications
Intel Core2 Duo E8400 Intel Core2 Duo E8400
Intel Core 2 Quad Q9300 Intel Core 2 Quad Q9300
CPU generation and family

Let's find out which one of Intel Core2 Duo E8400 and Intel Core 2 Quad Q9300 is of a more recent generation, and what segment it belongs to.

  • Name
    Intel Core2 Duo E8400 left arrow Intel Core 2 Quad Q9300
  • Family
    Intel Core2 Duo left arrow Intel Core2 Duo
  • CPU group
    Intel Core 2 Duo E7000/E8000 left arrow Intel Core 2 Quad
  • Segment
    Desktop / Server left arrow Desktop / Server
  • Generation
    2 left arrow 2
CPU Cores and Base Frequency

In this block we are going to compare Intel Core2 Duo E8400 vs Intel Core 2 Quad Q9300 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

  • Core architecture
    normal left arrow normal
  • Overclocking
    Yes left arrow No
  • Frequency
    3.00 GHz left arrow 2.50 GHz
Internal Graphics

Common specifications for integrated graphics cards in Intel Core2 Duo E8400 and Intel Core 2 Quad Q9300 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

  • GPU name
    no iGPU left arrow no iGPU
  • GPU (Turbo)
    No turbo left arrow No turbo
Hardware codec support

Let's compare the support of video codecs between Intel Core2 Duo E8400 and Intel Core 2 Quad Q9300. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    No left arrow No
  • VP8
    No left arrow No
  • VP9
    No left arrow No
  • AV1
    No left arrow No
  • AVC
    No left arrow No
  • VC-1
    No left arrow No
  • JPEG
    No left arrow No
Memory & PCIe

To choose the best model between Intel Core2 Duo E8400 and Intel Core 2 Quad Q9300 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

  • Memory type
    DDR2-1066, DDR3-1333 left arrow
  • Max. Memory
    16 GB left arrow
  • Memory channels
    2 (Dual Channel) left arrow 0
  • ECC
    No left arrow No
Thermal Management

Let's find out what TDP value would be better for Intel Core2 Duo E8400 or Intel Core 2 Quad Q9300? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

  • TDP (PL1)
    65 W left arrow 95 W
Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Core2 Duo E8400 and Intel Core 2 Quad Q9300 CPUs along with a list of ISA extensions.

  • Technology
    45 nm left arrow 45 nm
  • Socket
    LGA 775 left arrow AM1
  • L2-Cache
    6.00 MB left arrow --
  • L3-Cache
    -- left arrow 6.00 MB
  • Architecture
    Wolfdale (Penryn) left arrow Yorkfield
  • Virtualization
    VT-x left arrow VT-x, VT-d
  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • ISA extensions
    MMX, SSE, SSE2, SSE3, SSE 4.1 left arrow SSE3
  • Release date
    Q1/2008 left arrow Q1/2008
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