Intel Core 2 Extreme QX6800 vs Intel Core 2 Duo T5500

Comparative analysis of Intel Core 2 Extreme QX6800 and Intel Core 2 Duo T5500 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.

Intel Core 2 Extreme QX6800

Intel Core 2 Duo T5500

Differences

Reasons to consider the Intel Core 2 Extreme QX6800

CPU is newer: launch date 2 month(s) later
Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more cores, run more applications at once: 4 vs 2
Around 77% higher clock speed: 2.93 GHz vs 1.66 GHz
4x 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

Launch date	April 2007 vs 1 February 2007
Unlocked	Unlocked vs Locked
Number of cores	4 vs 2
Maximum frequency	2.93 GHz vs 1.66 GHz
L1 cache	256 KB vs 64 KB
L2 cache	8192 KB vs 2048 KB

Reasons to consider the Intel Core 2 Duo T5500

Around 55% higher maximum core temperature: 100°C vs 64.5°C
3.8x lower typical power consumption: 34 Watt vs 130 Watt

Maximum core temperature	100°C vs 64.5°C
Thermal Design Power (TDP)	34 Watt vs 130 Watt

Compare benchmarks

CPU 1: Intel Core 2 Extreme QX6800
CPU 2: Intel Core 2 Duo T5500

Name	Intel Core 2 Extreme QX6800	Intel Core 2 Duo T5500
PassMark - Single thread mark		608
PassMark - CPU mark		548
Geekbench 4 - Single Core		976
Geekbench 4 - Multi-Core		1533

Compare specifications (specs)

	Intel Core 2 Extreme QX6800	Intel Core 2 Duo T5500
Essentials
Architecture codename	Kentsfield	Merom
Launch date	April 2007	1 February 2007
Place in performance rating	not rated	2525
Processor Number	QX6800	T5500
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Desktop	Mobile
Performance
64 bit support
Base frequency	2.93 GHz	1.66 GHz
Bus Speed	1066 MHz FSB	667 MHz FSB
Die size	286 mm2	143 mm2
L1 cache	256 KB	64 KB
L2 cache	8192 KB	2048 KB
Manufacturing process technology	65 nm	65 nm
Maximum core temperature	64.5°C	100°C
Maximum frequency	2.93 GHz	1.66 GHz
Number of cores	4	2
Transistor count	582 million	291 million
Unlocked
VID voltage range	0.8500V-1.500V	1.0375V-1.300V
Front-side bus (FSB)		667 MHz
Number of threads		2
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	35mm x 35mm
Sockets supported	LGA775	PPGA478, PBGA479
Thermal Design Power (TDP)	130 Watt	34 Watt
Scenario Design Power (SDP)		0 W
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)