Ryzen 9 7950X vs Pentium III 866

#ad 
Buy on Amazon
VS

Primary details

Comparing Pentium III 866 and Ryzen 9 7950X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated65
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiencyno data21.98
Architecture codenameCoppermine T (2000)Raphael (Zen 4) (2022)
Release date20 March 2000 (24 years ago)27 September 2022 (2 years ago)

Detailed specifications

Pentium III 866 and Ryzen 9 7950X 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)16 (Hexadeca-Core)
Threads132
Base clock speedno data4.5 GHz
Boost clock speed0.87 GHz5.7 GHz
L1 cache32 KB64K (per core)
L2 cache256 KB1 MB (per core)
L3 cache0 KB64 MB (shared)
Chip lithography180 nm5 nm
Die size106 mm2CCD = 2x 70 sq. mm, I/O = 122 mm2
Maximum core temperatureno data95 °C
Maximum case temperature (TCase)80 °C47 °C
Number of transistors28 million13140 Million
64 bit support-+
Windows 11 compatibility-+
Unlocked multiplier-+

Compatibility

Information on Pentium III 866 and Ryzen 9 7950X 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 configuration21
Socket370AM5
Power consumption (TDP)27 Watt170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium III 866 and Ryzen 9 7950X. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataCCD = 5 nm, I/O = 6 nm, 0.650 - 1.475 V
AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium III 866 and Ryzen 9 7950X are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium III 866 and Ryzen 9 7950X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5-5200

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)AMD Radeon Graphics (Ryzen 7000)

Peripherals

Specifications and connection of peripherals supported by Pentium III 866 and Ryzen 9 7950X.

PCIe versionno data5.0
PCI Express lanesno data24

Pros & cons summary


Recency 20 March 2000 27 September 2022
Physical cores 1 16
Threads 1 32
Chip lithography 180 nm 5 nm
Power consumption (TDP) 27 Watt 170 Watt

Pentium III 866 has 529.6% lower power consumption.

Ryzen 9 7950X, on the other hand, has an age advantage of 22 years, 1500% more physical cores and 3100% more threads, and a 3500% more advanced lithography process.

We couldn't decide between Pentium III 866 and Ryzen 9 7950X. We've got no test results to judge.


Should you still have questions on choice between Pentium III 866 and Ryzen 9 7950X, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Pentium III  866
Pentium III 866
AMD Ryzen 9 7950X
Ryzen 9 7950X

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4 31 vote

Rate Pentium III 866 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4.3 1574 votes

Rate Ryzen 9 7950X on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Pentium III 866 or Ryzen 9 7950X, agree or disagree with our judgements, or report an error or mismatch.