Pentium III 1000 vs Xeon L5420

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Primary details

Comparing Xeon L5420 and Pentium III 1000 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2242not rated
Place by popularitynot in top-100not in top-100
Market segmentServerDesktop processor
Power efficiency2.56no data
Architecture codenameno dataCoppermine (1999−2001)
Release date1 January 2008 (16 years ago)8 March 2000 (24 years ago)
Launch price (MSRP)no data$990

Detailed specifications

Xeon L5420 and Pentium III 1000 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 coresno data1 (Single-Core)
Threadsno data1
Base clock speed2.5 GHzno data
Boost clock speedno data1 GHz
L1 cacheno data32 KB
L2 cacheno data256 KB
L3 cache12 MB L2 Cache0 KB
Chip lithography45 nm180 nm
Die sizeno data106 mm2
Maximum core temperature57 °Cno data
Maximum case temperature (TCase)no data70 °C
Number of transistorsno data28 million
64 bit support+-
Windows 11 compatibility--
VID voltage range0.85V-1.35Vno data

Compatibility

Information on Xeon L5420 and Pentium III 1000 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 configurationno data2
SocketLGA771370
Power consumption (TDP)50 Watt33 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5420 and Pentium III 1000. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Demand Based Switching+no data
FSB parity+no data

Security technologies

Xeon L5420 and Pentium III 1000 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 Xeon L5420 and Pentium III 1000 are enumerated here.

VT-x+no data
EPT-no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Pros & cons summary


Recency 1 January 2008 8 March 2000
Chip lithography 45 nm 180 nm
Power consumption (TDP) 50 Watt 33 Watt

Xeon L5420 has an age advantage of 7 years, and a 300% more advanced lithography process.

Pentium III 1000, on the other hand, has 51.5% lower power consumption.

We couldn't decide between Xeon L5420 and Pentium III 1000. We've got no test results to judge.

Be aware that Xeon L5420 is a server/workstation processor while Pentium III 1000 is a desktop one.


Should you still have questions on choice between Xeon L5420 and Pentium III 1000, ask them in Comments section, and we shall answer.

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Intel Xeon L5420
Xeon L5420
Intel Pentium III 1000
Pentium III 1000

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Community ratings

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4.2 149 votes

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3.4 11 votes

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