Intel Core 2 Quad Q8400 vs AMD Athlon 64 FX-55

Comparative analysis of Intel Core 2 Quad Q8400 and AMD Athlon 64 FX-55 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - T-Rex (Frames/s).

 

Differences

Reasons to consider the Intel Core 2 Quad Q8400

  • CPU is newer: launch date 4 year(s) 6 month(s) later
  • 3 more cores, run more applications at once: 4 vs 1
  • Around 3% higher clock speed: 2.67 GHz vs 2.6 GHz
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 90 nm
  • 2x more L1 cache, more data can be stored in the L1 cache for quick access later
  • 4x more L2 cache, more data can be stored in the L2 cache for quick access later
  • Around 9% lower typical power consumption: 95 Watt vs 104 Watt
  • 2.3x better performance in PassMark - Single thread mark: 1142 vs 505
  • 5.1x better performance in PassMark - CPU mark: 2067 vs 404
Specifications (specs)
Launch date April 2009 vs October 2004
Number of cores 4 vs 1
Maximum frequency 2.67 GHz vs 2.6 GHz
Manufacturing process technology 45 nm vs 90 nm
L1 cache 256 KB vs 128 KB
L2 cache 4096 KB vs 1024 KB
Thermal Design Power (TDP) 95 Watt vs 104 Watt
Benchmarks
PassMark - Single thread mark 1142 vs 505
PassMark - CPU mark 2067 vs 404

Compare benchmarks

CPU 1: Intel Core 2 Quad Q8400
CPU 2: AMD Athlon 64 FX-55

PassMark - Single thread mark
CPU 1
CPU 2
1142
505
PassMark - CPU mark
CPU 1
CPU 2
2067
404
Name Intel Core 2 Quad Q8400 AMD Athlon 64 FX-55
PassMark - Single thread mark 1142 505
PassMark - CPU mark 2067 404
Geekbench 4 - Single Core 362
Geekbench 4 - Multi-Core 1139
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 0.609
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 20.494
CompuBench 1.5 Desktop - Video Composition (Frames/s) 1.4
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.93
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.171

Compare specifications (specs)

Intel Core 2 Quad Q8400 AMD Athlon 64 FX-55

Essentials

Architecture codename Yorkfield San Diego
Launch date April 2009 October 2004
Place in performance rating 3008 2996
Price now $99.50 $179.95
Processor Number Q8400
Series Legacy Intel® Core™ Processors
Status Discontinued
Value for money (0-100) 9.38 1.18
Vertical segment Desktop Desktop
Launch price (MSRP) $180

Performance

64 bit support
Base frequency 2.66 GHz
Bus Speed 1333 MHz FSB
Die size 164 mm2 115 mm
L1 cache 256 KB 128 KB
L2 cache 4096 KB 1024 KB
Manufacturing process technology 45 nm 90 nm
Maximum case temperature (TCase) 71 °C
Maximum core temperature 71.4°C
Maximum frequency 2.67 GHz 2.6 GHz
Number of cores 4 1
Transistor count 456 million 114 million
VID voltage range 0.8500V-1.3625V

Memory

Supported memory types DDR1, DDR2, DDR3

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 1
Package Size 37.5mm x 37.5mm
Sockets supported LGA775 939
Thermal Design Power (TDP) 95 Watt 104 Watt

Security & Reliability

Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)

Advanced Technologies

Enhanced Intel SpeedStep® technology
FSB parity
Idle States
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Thermal Monitoring

Virtualization

Intel® Virtualization Technology (VT-x)