Intel Core 2 Extreme QX9770 vs Intel Core 2 Extreme QX9775

Comparative analysis of Intel Core 2 Extreme QX9770 and Intel Core 2 Extreme QX9775 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: Geekbench 4 - Single Core, Geekbench 4 - Multi-Core.

Intel Core 2 Extreme QX9770

Intel Core 2 Extreme QX9775

Differences

Reasons to consider the Intel Core 2 Extreme QX9770

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2x more L1 cache, more data can be stored in the L1 cache for quick access later
Around 10% lower typical power consumption: 136 Watt vs 150 Watt

Unlocked	Unlocked vs Locked
L1 cache	256 KB vs 128 KB
Thermal Design Power (TDP)	136 Watt vs 150 Watt

Reasons to consider the Intel Core 2 Extreme QX9775

Around 14% higher maximum core temperature: 63°C vs 55.5°C

Maximum core temperature	63°C vs 55.5°C

Compare benchmarks

CPU 1: Intel Core 2 Extreme QX9770
CPU 2: Intel Core 2 Extreme QX9775

Name	Intel Core 2 Extreme QX9770	Intel Core 2 Extreme QX9775
Geekbench 4 - Single Core	2338
Geekbench 4 - Multi-Core	6682

Compare specifications (specs)

	Intel Core 2 Extreme QX9770	Intel Core 2 Extreme QX9775
Essentials
Architecture codename	Yorkfield	Yorkfield
Launch date	March 2008	March 2008
Place in performance rating	812	not rated
Processor Number	QX9770	QX9775
Series	Legacy Intel® Core™ Processors	Legacy Intel® Core™ Processors
Status	Discontinued	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	3.20 GHz	3.20 GHz
Bus Speed	1600 MHz FSB	1600 MHz FSB
Die size	214 mm2	214 mm2
L1 cache	256 KB	128 KB
L2 cache	12288 KB	12288 KB
Manufacturing process technology	45 nm	45 nm
Maximum case temperature (TCase)	55 °C	63 °C
Maximum core temperature	55.5°C	63°C
Maximum frequency	3.2 GHz	3.2 GHz
Number of cores	4	4
Transistor count	820 million	820 million
Unlocked
VID voltage range	0.8500V-1.3625V	0.850V-1.3500V
Memory
Supported memory types	DDR1, DDR2, DDR3	DDR2
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	LGA775	LGA771
Thermal Design Power (TDP)	136 Watt	150 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
Virtualization
Intel® Virtualization Technology (VT-x)