Intel Core 2 Extreme QX9300 vs Intel Core 2 Quad Q9400

Comparative analysis of Intel Core 2 Extreme QX9300 and Intel Core 2 Quad Q9400 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 Extreme QX9300

Intel Core 2 Quad Q9400

Differences

Reasons to consider the Intel Core 2 Extreme QX9300

Around 40% higher maximum core temperature: 100°C vs 71.4°C
2.1x lower typical power consumption: 45 Watt vs 95 Watt

Maximum core temperature	100°C vs 71.4°C
Max number of CPUs in a configuration	2 vs 1
Thermal Design Power (TDP)	45 Watt vs 95 Watt

Reasons to consider the Intel Core 2 Quad Q9400

Around 6% higher clock speed: 2.67 GHz vs 2.53 GHz
4x more L1 cache, more data can be stored in the L1 cache for quick access later

Maximum frequency	2.67 GHz vs 2.53 GHz
L1 cache	256 KB vs 64 KB

Compare benchmarks

CPU 1: Intel Core 2 Extreme QX9300
CPU 2: Intel Core 2 Quad Q9400

Name	Intel Core 2 Extreme QX9300	Intel Core 2 Quad Q9400
PassMark - Single thread mark		1138
PassMark - CPU mark		2133
Geekbench 4 - Single Core		376
Geekbench 4 - Multi-Core		1151
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 Extreme QX9300	Intel Core 2 Quad Q9400
Essentials
Architecture codename	Penryn	Yorkfield
Launch date	August 2008	August 2008
Place in performance rating	not rated	3119
Processor Number	QX9300	Q9400
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Mobile	Desktop
Price now		$33.98
Value for money (0-100)		28.99
Performance
64 bit support
Base frequency	2.53 GHz	2.66 GHz
Bus Speed	1066 MHz FSB	1333 MHz FSB
Die size	214 mm2	164 mm2
Front-side bus (FSB)	1066 MHz
L1 cache	64 KB	256 KB
L2 cache	6144 KB (per die)	6144 KB
Manufacturing process technology	45 nm	45 nm
Maximum core temperature	100°C	71.4°C
Maximum frequency	2.53 GHz	2.67 GHz
Number of cores	4	4
Number of threads	4
Transistor count	820 million	456 million
VID voltage range	1.050V-1.175V	0.8500V-1.3625V
Maximum case temperature (TCase)		71 °C
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	2	1
Package Size	35mm x 35mm	37.5mm x 37.5mm
Sockets supported	PGA478	LGA775
Thermal Design Power (TDP)	45 Watt	95 Watt
Security & Reliability
Execute Disable Bit (EDB)
Intel® Trusted Execution technology (TXT)
Advanced Technologies
Enhanced Intel SpeedStep® technology
FSB parity
Intel 64
Intel® Active Management technology (AMT)
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Turbo Boost technology
Idle States
Intel® AES New Instructions
Thermal Monitoring
Virtualization
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Memory
Supported memory types		DDR1, DDR2, DDR3