Intel Core 2 Quad Q9550 vs Intel Core 2 Extreme QX9650

Comparative analysis of Intel Core 2 Quad Q9550 and Intel Core 2 Extreme QX9650 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).

Intel Core 2 Quad Q9550

Intel Core 2 Extreme QX9650

Differences

Reasons to consider the Intel Core 2 Quad Q9550

Around 11% higher maximum core temperature: 71.4°C vs 64.5°C
Around 37% lower typical power consumption: 95 Watt vs 130 Watt

Maximum core temperature	71.4°C vs 64.5°C
Thermal Design Power (TDP)	95 Watt vs 130 Watt

Reasons to consider the Intel Core 2 Extreme QX9650

Processor is unlocked, an unlocked multiplier allows for easier overclocking
Around 13% better performance in Geekbench 4 - Single Core: 465 vs 412
Around 13% better performance in Geekbench 4 - Multi-Core: 1463 vs 1299

Specifications (specs)
Unlocked	Unlocked vs Locked
Benchmarks
Geekbench 4 - Single Core	465 vs 412
Geekbench 4 - Multi-Core	1463 vs 1299

Compare benchmarks

CPU 1: Intel Core 2 Quad Q9550
CPU 2: Intel Core 2 Extreme QX9650

Geekbench 4 - Single Core

CPU 1

CPU 2

412

465

Geekbench 4 - Multi-Core

CPU 1

CPU 2

1299

1463

Name	Intel Core 2 Quad Q9550	Intel Core 2 Extreme QX9650
PassMark - Single thread mark	1216
PassMark - CPU mark	2349
Geekbench 4 - Single Core	412	465
Geekbench 4 - Multi-Core	1299	1463
3DMark Fire Strike - Physics Score	0	4864
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	0.612
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	30.904
CompuBench 1.5 Desktop - T-Rex (Frames/s)	0.175
CompuBench 1.5 Desktop - Video Composition (Frames/s)	1.258
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	4.476

Compare specifications (specs)

	Intel Core 2 Quad Q9550	Intel Core 2 Extreme QX9650
Essentials
Architecture codename	Yorkfield	Yorkfield
Launch date	Q1'08	November 2007
Place in performance rating	3027	2283
Processor Number	Q9550	QX9650
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.83 GHz	3.00 GHz
Bus Speed	1333 MHz FSB	1333 MHz FSB
Die size	214 mm2	214 mm2
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	71.4°C	64.5°C
Number of cores	4	4
Transistor count	820 million	820 million
VID voltage range	0.8500V-1.3625V	0.8500V-1.3625V
L1 cache		256 KB
L2 cache		12288 KB
Maximum case temperature (TCase)		64 °C
Maximum frequency		3 GHz
Unlocked
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	130 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