Pentium III 866 vs i5-520M

Primary details

Comparing Core i5-520M and Pentium III 866 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2406	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	Intel Core i5	no data
Power efficiency	2.92	no data
Architecture codename	Arrandale (2010−2011)	Coppermine T (2000)
Release date	7 January 2010 (14 years ago)	20 March 2000 (24 years ago)
Launch price (MSRP)	$225	no data

Detailed specifications

Core i5-520M and Pentium III 866 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)	1 (Single-Core)
Threads	4	1
Base clock speed	2.4 GHz	no data
Boost clock speed	2.93 GHz	0.87 GHz
Bus type	DMI 1.0	no data
Bus rate	1 × 2.5 GT/s	no data
Multiplier	18	no data
L1 cache	128 KB	32 KB
L2 cache	512 KB	256 KB
L3 cache	3 MB	0 KB
Chip lithography	32 nm	180 nm
Die size	81+114 mm2	106 mm2
Maximum core temperature	105 °C	no data
Maximum case temperature (TCase)	no data	80 °C
Number of transistors	382+177 Million	28 million
64 bit support	+	-
Windows 11 compatibility	-	-

Compatibility

Information on Core i5-520M and Pentium III 866 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 (Uniprocessor)	2
Socket	BGA1288,PGA988	370
Power consumption (TDP)	35 Watt	27 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-520M and Pentium III 866. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	no data
AES-NI	+	-
FMA	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	+	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
Flex Memory Access	+	no data
PAE	36 Bit	no data
FDI	+	no data
Fast Memory Access	+	no data

Security technologies

Core i5-520M and Pentium III 866 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 i5-520M and Pentium III 866 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-520M and Pentium III 866. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066	no data
Maximum memory size	8.3 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	17.051 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel® HD Graphics for Previous Generation Intel® Processors	On certain motherboards (Chipset feature)
Clear Video	+	no data
Clear Video HD	+	no data
Graphics max frequency	766 MHz	no data

Graphics interfaces

Available interfaces and connections of Core i5-520M and Pentium III 866 integrated GPUs.

Number of displays supported

2

no data

Peripherals

Specifications and connection of peripherals supported by Core i5-520M and Pentium III 866.

PCIe version	2.0	no data
PCI Express lanes	16	no data

Pros & cons summary

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Recency	7 January 2010	20 March 2000
Physical cores	2	1
Threads	4	1
Chip lithography	32 nm	180 nm
Power consumption (TDP)	35 Watt	27 Watt

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