i3-12100F vs Pentium D 945

Primary details

Comparing Pentium D 945 and Core i3-12100F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	860
Place by popularity	not in top-100	5
Market segment	Desktop processor	Desktop processor
Power efficiency	no data	14.49
Architecture codename	Presler (2005−2007)	Alder Lake-S (2022)
Release date	23 July 2006 (18 years ago)	January 2022 (2 years ago)
Launch price (MSRP)	$163	no data

Detailed specifications

Pentium D 945 and Core i3-12100F 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	3.4 GHz	3.3 GHz
Boost clock speed	3.4 GHz	4.3 GHz
L1 cache	16 KB (per core)	80K (per core)
L2 cache	2 MB (per die)	1.25 MB (per core)
L3 cache	0 KB	12 MB (shared)
Chip lithography	65 nm	Intel 7 nm
Die size	2x 81 mm2	163 mm2
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	63 °C	no data
Number of transistors	376 million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
VID voltage range	1.2V-1.3375V	no data

Compatibility

Information on Pentium D 945 and Core i3-12100F 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	LGA775,PLGA775	FCLGA1700
Power consumption (TDP)	95 Watt	58 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 945 and Core i3-12100F. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	+	+
Thermal Monitoring	-	+
Demand Based Switching	-	no data
PAE	32 Bit	no data
Turbo Boost Max 3.0	no data	-
FSB parity	-	no data
Deep Learning Boost	-	+

Security technologies

Pentium D 945 and Core i3-12100F technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 945 and Core i3-12100F are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 945 and Core i3-12100F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR5-4800, DDR4-3200
Maximum memory size	no data	128 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	76.8 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 945 and Core i3-12100F.

PCIe version	no data	5.0 and 4.0
PCI Express lanes	no data	20

Pros & cons summary

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Physical cores	2	4
Threads	2	8
Power consumption (TDP)	95 Watt	58 Watt

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Should you still have questions on choice between Pentium D 945 and Core i3-12100F, ask them in Comments section, and we shall answer.

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