i7-940XM Extreme Edition vs Pentium D 915

Primary details

Comparing Pentium D 915 and Core i7-940XM Extreme Edition processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Core i7EE
Architecture codename	Presler (2005−2007)	Nehalem (2008−2010)
Release date	23 July 2006 (18 years ago)	5 February 2010 (14 years ago)
Launch price (MSRP)	no data	$1,096

Detailed specifications

Pentium D 915 and Core i7-940XM 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	2 (Dual-core)	4 (Quad-Core)
Threads	2	8
Base clock speed	2.8 GHz	no data
Boost clock speed	2.8 GHz	2.13 GHz
Bus type	no data	DMI
Bus rate	no data	2.5 GT/s
Multiplier	no data	16
L1 cache	16 KB (per core)	256 KB
L2 cache	2 MB (per die)	1 MB
L3 cache	0 KB	8 MB
Chip lithography	65 nm	45 nm
Die size	2x 81 mm2	296 mm2
Maximum case temperature (TCase)	63 °C	no data
Number of transistors	376 million	774 Million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.2V-1.3375V	no data

Compatibility

Information on Pentium D 915 and Core i7-940XM 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,PLGA775	no data
Power consumption (TDP)	95 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 915 and Core i7-940XM Extreme Edition. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Demand Based Switching	-	no data
PAE	32 Bit	no data
FSB parity	-	no data
Status	Discontinued	no data

Security technologies

Pentium D 915 and Core i7-940XM Extreme Edition technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 915 and Core i7-940XM Extreme Edition are enumerated here.

VT-d	-	+
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 915 and Core i7-940XM Extreme Edition. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3-1333
Maximum memory size	no data	8 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Pentium D 915 and Core i7-940XM Extreme Edition.

PCIe version	no data	2.0
PCI Express lanes	no data	16

Pros & cons summary

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Recency	23 July 2006	5 February 2010
Physical cores	2	4
Threads	2	8
Chip lithography	65 nm	45 nm
Power consumption (TDP)	95 Watt	55 Watt

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Should you still have questions on choice between Pentium D 915 and Core i7-940XM Extreme Edition, ask them in Comments section, and we shall answer.

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