Pentium D 925 vs Xeon X3440

Primary details

Comparing Xeon X3440 and Pentium D 925 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2023	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Desktop processor
Power efficiency	1.74	no data
Architecture codename	no data	Presler (2005−2007)
Release date	1 July 2009 (15 years ago)	1 October 2006 (18 years ago)
Launch price (MSRP)	no data	$74

Detailed specifications

Xeon X3440 and Pentium D 925 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)	2 (Dual-core)
Threads	8	2
Base clock speed	2.53 GHz	3 GHz
Boost clock speed	2.93 GHz	3 GHz
L1 cache	no data	16 KB (per core)
L2 cache	no data	2 MB (per die)
L3 cache	8 MB Intel® Smart Cache	0 KB
Chip lithography	45 nm	65 nm
Die size	no data	2x 81 mm2
Maximum core temperature	73 °C	no data
Maximum case temperature (TCase)	no data	62 °C
Number of transistors	no data	376 million
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	no data	1.2V-1.3375V

Compatibility

Information on Xeon X3440 and Pentium D 925 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
Socket	FCLGA1156,LGA1156	LGA775,PLGA775
Power consumption (TDP)	95 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X3440 and Pentium D 925. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
Enhanced SpeedStep (EIST)	+	+
Turbo Boost Technology	1.0	-
Hyper-Threading Technology	+	-
Idle States	+	+
Demand Based Switching	+	-
PAE	36 Bit	32 Bit
FSB parity	no data	-

Security technologies

Xeon X3440 and Pentium D 925 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon X3440 and Pentium D 925 are enumerated here.

VT-d	+	-
VT-x	+	-
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X3440 and Pentium D 925. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066, DDR3-1333	DDR1, DDR2, DDR3
Maximum memory size	32 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	21 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon X3440 and Pentium D 925.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	1 July 2009	1 October 2006
Physical cores	4	2
Threads	8	2
Chip lithography	45 nm	65 nm

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