Phenom II X2 N660 vs Core 2 Duo P8400

Primary details

Comparing Core 2 Duo P8400 and Phenom II X2 N660 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2843	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Duo	2x AMD Phenom II
Power efficiency	2.01	no data
Architecture codename	Penryn (2008−2011)	Champlain (2010−2011)
Release date	15 July 2008 (16 years ago)	1 January 2011 (13 years ago)
Launch price (MSRP)	$209	no data

Detailed specifications

Core 2 Duo P8400 and Phenom II X2 N660 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	2 (Dual-core)	2 (Dual-core)
Threads	2	2
Base clock speed	2.26 GHz	no data
Boost clock speed	2.26 GHz	3 GHz
Bus rate	1066 MHz	3600 MHz
L1 cache	128 KB	256 KB
L2 cache	3 MB	2 MB
L3 cache	3 MB L2 Cache	no data
Chip lithography	45 nm	45 nm
Die size	107 mm2	no data
Maximum core temperature	105 °C	no data
Number of transistors	410 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.05V-1.15V	no data

Compatibility

Information on Core 2 Duo P8400 and Phenom II X2 N660 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.

Socket	BGA479,PBGA479,PGA478	S1
Power consumption (TDP)	25 Watt	35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo P8400 and Phenom II X2 N660. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	HyperTransport 3.0, SSE4A, AMD64, Enhanced Virus Protection, Vurtualization
VirusProtect	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Demand Based Switching	-	no data
FSB parity	-	no data

Security technologies

Core 2 Duo P8400 and Phenom II X2 N660 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 Duo P8400 and Phenom II X2 N660 are enumerated here.

VT-x

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo P8400 and Phenom II X2 N660. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR3

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Recency	15 July 2008	1 January 2011
Power consumption (TDP)	25 Watt	35 Watt

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Should you still have questions on choice between Core 2 Duo P8400 and Phenom II X2 N660, ask them in Comments section, and we shall answer.

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