Core i7-965 Extreme Edition vs Core 2 Extreme QX9770

Primary details

Comparing Core 2 Extreme QX9770 and Core i7-965 Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1571	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.72	no data
Market segment	Desktop processor	Desktop processor
Series	no data	Intel Core i7EE
Architecture codename	Yorkfield (2007−2009)	Nehalem (2008−2010)
Release date	March 2008 (16 years ago)	17 November 2008 (15 years ago)
Current price	$485	$150

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core 2 Extreme QX9770 and Core i7-965 Extreme Edition basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	4 (Quad-Core)
Threads	4	8
Base clock speed	3.2 GHz	no data
Boost clock speed	3.2 GHz	3.2 GHz
Bus support	no data	6.4 GT/s
L1 cache	64K (per core)	no data
L2 cache	12 MB (shared)	1 MB
L3 cache	0 KB	8 MB
Chip lithography	45 nm	45 nm
Die size	2x 107 mm2	263 mm2
Maximum core temperature	56 °C	no data
Maximum case temperature (TCase)	55 °C	no data
Number of transistors	820 million	731 Million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No
VID voltage range	0.85V-1.3625V	no data

Compatibility

Information on Core 2 Extreme QX9770 and Core i7-965 Extreme Edition compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1 (Uniprocessor)
Socket	LGA775	no data
Power consumption (TDP)	136 Watt	130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme QX9770 and Core i7-965 Extreme Edition. You'll probably need this information if you require some particular technology.

AES-NI	-	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	+	no data
Demand Based Switching	-	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Core 2 Extreme QX9770 and Core i7-965 Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Extreme QX9770 and Core i7-965 Extreme Edition are enumerated here.

VT-x

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9770 and Core i7-965 Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	no data
Maximum memory size	no data	24 GB

Pros & cons summary

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Threads	4	8
Power consumption (TDP)	136 Watt	130 Watt

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Should you still have questions on choice between Core 2 Extreme QX9770 and Core i7-965 Extreme Edition, ask them in Comments section, and we shall answer.

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