Pentium III 866 vs Athlon 1333

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Primary details

Comparing Athlon 1333 and Pentium III 866 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Architecture codenameThunderbird C (2000−2001)Coppermine T (2000)
Release date21 March 2001 (23 years ago)20 March 2000 (24 years ago)

Detailed specifications

Athlon 1333 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 cores1 (Single-Core)1 (Single-Core)
Threads11
Boost clock speed1.33 GHz0.87 GHz
L1 cache128 KB32 KB
L2 cache256 KB256 KB
L3 cache0 KB0 KB
Chip lithography180 nm180 nm
Die size120 mm2106 mm2
Maximum case temperature (TCase)no data80 °C
Number of transistors37 million28 million
64 bit support--
Windows 11 compatibility--

Compatibility

Information on Athlon 1333 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 configuration12
SocketA370
Power consumption (TDP)70 Watt27 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 1333 and Pentium III 866. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)On certain motherboards (Chipset feature)

Pros & cons summary


Recency 21 March 2001 20 March 2000
Power consumption (TDP) 70 Watt 27 Watt

Athlon 1333 has an age advantage of 1 year.

Pentium III 866, on the other hand, has 159.3% lower power consumption.

We couldn't decide between Athlon 1333 and Pentium III 866. We've got no test results to judge.


Should you still have questions on choice between Athlon 1333 and Pentium III 866, ask them in Comments section, and we shall answer.

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AMD Athlon 1333
Athlon 1333
Intel Pentium III  866
Pentium III 866

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Community ratings

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