Phenom II X4 X940 BE vs Core 2 Extreme X7800

Primary details

Comparing Core 2 Extreme X7800 and Phenom II X4 X940 BE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2686	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core 2 Extreme	4x AMD Phenom II
Power efficiency	1.53	no data
Architecture codename	Merom XE (2007)	Champlain (2010−2011)
Release date	17 July 2007 (17 years ago)	1 January 2011 (13 years ago)
Launch price (MSRP)	$851	no data

Detailed specifications

Core 2 Extreme X7800 and Phenom II X4 X940 BE 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)	4 (Quad-Core)
Threads	2	4
Base clock speed	2.6 GHz	no data
Boost clock speed	2.6 GHz	2.4 GHz
Bus rate	800 MHz	3600 MHz
L1 cache	128 KB	256 KB
L2 cache	4 MB	2 MB
L3 cache	4 MB L2 Cache	no data
Chip lithography	65 nm	45 nm
Die size	143 mm2	no data
Maximum core temperature	100 °C	no data
Number of transistors	291 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.1V-1.375V	no data

Compatibility

Information on Core 2 Extreme X7800 and Phenom II X4 X940 BE 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	PPGA478	S1
Power consumption (TDP)	44 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Extreme X7800 and Phenom II X4 X940 BE. You'll probably need this information if you require some particular technology.

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

Security technologies

Core 2 Extreme X7800 and Phenom II X4 X940 BE 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 X7800 and Phenom II X4 X940 BE are enumerated here.

VT-x

+

no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme X7800 and Phenom II X4 X940 BE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

no data

DDR3

Pros & cons summary

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Recency	17 July 2007	1 January 2011
Physical cores	2	4
Threads	2	4
Chip lithography	65 nm	45 nm
Power consumption (TDP)	44 Watt	45 Watt

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Should you still have questions on choice between Core 2 Extreme X7800 and Phenom II X4 X940 BE, ask them in Comments section, and we shall answer.

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