Intel Core 2 Quad Q9550 vs Intel Core 2 Quad Q8400

Comparative analysis of Intel Core 2 Quad Q9550 and Intel Core 2 Quad Q8400 processors for all known characteristics in the following categories: Essentials, Performance, Compatibility, Security & Reliability, Advanced Technologies, Virtualization, Memory. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).

 

Differences

Reasons to consider the Intel Core 2 Quad Q9550

  • Around 6% better performance in PassMark - Single thread mark: 1216 vs 1142
  • Around 13% better performance in PassMark - CPU mark: 2338 vs 2068
  • Around 14% better performance in Geekbench 4 - Single Core: 412 vs 362
  • Around 14% better performance in Geekbench 4 - Multi-Core: 1299 vs 1139
  • Around 51% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 30.904 vs 20.494
  • Around 2% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.175 vs 0.171
Benchmarks
PassMark - Single thread mark 1216 vs 1142
PassMark - CPU mark 2338 vs 2068
Geekbench 4 - Single Core 412 vs 362
Geekbench 4 - Multi-Core 1299 vs 1139
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 0.612 vs 0.609
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 30.904 vs 20.494
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.175 vs 0.171

Reasons to consider the Intel Core 2 Quad Q8400

  • Around 11% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 1.4 vs 1.258
  • Around 10% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 4.93 vs 4.476
Benchmarks
CompuBench 1.5 Desktop - Video Composition (Frames/s) 1.4 vs 1.258
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.93 vs 4.476

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9550
CPU 2: Intel Core 2 Quad Q8400

PassMark - Single thread mark
CPU 1
CPU 2
1216
1142
PassMark - CPU mark
CPU 1
CPU 2
2338
2068
Geekbench 4 - Single Core
CPU 1
CPU 2
412
362
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1299
1139
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
CPU 1
CPU 2
0.612
0.609
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
CPU 1
CPU 2
30.904
20.494
CompuBench 1.5 Desktop - T-Rex (Frames/s)
CPU 1
CPU 2
0.175
0.171
CompuBench 1.5 Desktop - Video Composition (Frames/s)
CPU 1
CPU 2
1.258
1.4
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
CPU 1
CPU 2
4.476
4.93
Name Intel Core 2 Quad Q9550 Intel Core 2 Quad Q8400
PassMark - Single thread mark 1216 1142
PassMark - CPU mark 2338 2068
Geekbench 4 - Single Core 412 362
Geekbench 4 - Multi-Core 1299 1139
3DMark Fire Strike - Physics Score 0
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 0.612 0.609
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 30.904 20.494
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.175 0.171
CompuBench 1.5 Desktop - Video Composition (Frames/s) 1.258 1.4
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.476 4.93

Compare specifications (specs)

Intel Core 2 Quad Q9550 Intel Core 2 Quad Q8400

Essentials

Architecture codename Yorkfield Yorkfield
Launch date Q1'08 April 2009
Place in performance rating 3016 3008
Processor Number Q9550 Q8400
Series Legacy Intel® Core™ Processors Legacy Intel® Core™ Processors
Status Discontinued Discontinued
Vertical segment Desktop Desktop
Price now $99.50
Value for money (0-100) 9.38

Performance

64 bit support
Base frequency 2.83 GHz 2.66 GHz
Bus Speed 1333 MHz FSB 1333 MHz FSB
Die size 214 mm2 164 mm2
Manufacturing process technology 45 nm 45 nm
Maximum core temperature 71.4°C 71.4°C
Number of cores 4 4
Transistor count 820 million 456 million
VID voltage range 0.8500V-1.3625V 0.8500V-1.3625V
L1 cache 256 KB
L2 cache 4096 KB
Maximum case temperature (TCase) 71 °C
Maximum frequency 2.67 GHz

Compatibility

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

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)
Intel® Virtualization Technology for Directed I/O (VT-d)

Memory

Supported memory types DDR1, DDR2, DDR3