Intel Core 2 Quad Q9400 vs Intel Pentium D 940

Comparative analysis of Intel Core 2 Quad Q9400 and Intel Pentium D 940 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, 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 Q9400

  • CPU is newer: launch date 2 year(s) 7 month(s) later
  • 2 more cores, run more applications at once: 4 vs 2
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 45 nm vs 65 nm
  • 9.1x more L1 cache, more data can be stored in the L1 cache for quick access later
  • Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
  • Around 37% lower typical power consumption: 95 Watt vs 130 Watt
  • Around 87% better performance in PassMark - Single thread mark: 1138 vs 609
  • 3.9x better performance in PassMark - CPU mark: 2138 vs 552
  • 2x better performance in Geekbench 4 - Single Core: 376 vs 186
  • 3.7x better performance in Geekbench 4 - Multi-Core: 1151 vs 309
Specifications (specs)
Launch date August 2008 vs January 2006
Number of cores 4 vs 2
Manufacturing process technology 45 nm vs 65 nm
L1 cache 256 KB vs 28 KB
L2 cache 6144 KB vs 4096 KB
Thermal Design Power (TDP) 95 Watt vs 130 Watt
Benchmarks
PassMark - Single thread mark 1138 vs 609
PassMark - CPU mark 2138 vs 552
Geekbench 4 - Single Core 376 vs 186
Geekbench 4 - Multi-Core 1151 vs 309

Reasons to consider the Intel Pentium D 940

  • Around 20% higher clock speed: 3.2 GHz vs 2.67 GHz
Maximum frequency 3.2 GHz vs 2.67 GHz
Max number of CPUs in a configuration 2 vs 1

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9400
CPU 2: Intel Pentium D 940

PassMark - Single thread mark
CPU 1
CPU 2
1138
609
PassMark - CPU mark
CPU 1
CPU 2
2138
552
Geekbench 4 - Single Core
CPU 1
CPU 2
376
186
Geekbench 4 - Multi-Core
CPU 1
CPU 2
1151
309
Name Intel Core 2 Quad Q9400 Intel Pentium D 940
PassMark - Single thread mark 1138 609
PassMark - CPU mark 2138 552
Geekbench 4 - Single Core 376 186
Geekbench 4 - Multi-Core 1151 309
3DMark Fire Strike - Physics Score 0
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 0.574
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 26.509
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.136
CompuBench 1.5 Desktop - Video Composition (Frames/s) 0.094
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.189

Compare specifications (specs)

Intel Core 2 Quad Q9400 Intel Pentium D 940

Essentials

Architecture codename Yorkfield Presler
Launch date August 2008 January 2006
Place in performance rating 3119 3134
Price now $33.98
Processor Number Q9400 940
Series Legacy Intel® Core™ Processors Legacy Intel® Pentium® Processor
Status Discontinued Discontinued
Value for money (0-100) 28.99
Vertical segment Desktop Desktop

Performance

64 bit support
Base frequency 2.66 GHz 3.20 GHz
Bus Speed 1333 MHz FSB 800 MHz FSB
Die size 164 mm2 162 mm2
L1 cache 256 KB 28 KB
L2 cache 6144 KB 4096 KB
Manufacturing process technology 45 nm 65 nm
Maximum case temperature (TCase) 71 °C
Maximum core temperature 71.4°C B1=68.6°C, C1=63.4°C
Maximum frequency 2.67 GHz 3.2 GHz
Number of cores 4 2
Transistor count 456 million 376 million
VID voltage range 0.8500V-1.3625V 1.200V-1.3375V

Memory

Supported memory types DDR1, DDR2, DDR3 DDR1, DDR2, DDR3

Compatibility

Low Halogen Options Available
Max number of CPUs in a configuration 1 2
Package Size 37.5mm x 37.5mm 37.5mm x 37.5mm
Sockets supported LGA775 PLGA775
Thermal Design Power (TDP) 95 Watt 130 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
Physical Address Extensions (PAE) 32-bit

Virtualization

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