Ryzen 5 5600H vs Pentium III 866

VS

Primary details

Comparing Pentium III 866 and Ryzen 5 5600H processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated729
Place by popularitynot in top-10046
Market segmentDesktop processorLaptop
Seriesno dataAMD Cezanne (Zen 3, Ryzen 5000)
Power efficiencyno data22.46
Architecture codenameCoppermine T (2000)Cezanne-H (Zen 3) (2021)
Release date20 March 2000 (24 years ago)12 January 2021 (3 years ago)

Detailed specifications

Pentium III 866 and Ryzen 5 5600H 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)6 (Hexa-Core)
Threads112
Base clock speedno data3.3 GHz
Boost clock speed0.87 GHz4.2 GHz
Multiplierno data33
L1 cache32 KB384 KB
L2 cache256 KB3 MB
L3 cache0 KB16 MB
Chip lithography180 nm7 nm
Die size106 mm2no data
Maximum case temperature (TCase)80 °Cno data
Number of transistors28 millionno data
64 bit support-+
Windows 11 compatibility-+

Compatibility

Information on Pentium III 866 and Ryzen 5 5600H 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 configuration2no data
Socket370FP6
Power consumption (TDP)27 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium III 866 and Ryzen 5 5600H. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI-+
FMA-+
AVX-+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium III 866 and Ryzen 5 5600H are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium III 866 and Ryzen 5 5600H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR4

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)AMD Radeon RX Vega 7 ( - 1800 MHz)

Pros & cons summary


Recency 20 March 2000 12 January 2021
Physical cores 1 6
Threads 1 12
Chip lithography 180 nm 7 nm
Power consumption (TDP) 27 Watt 45 Watt

Pentium III 866 has 66.7% lower power consumption.

Ryzen 5 5600H, on the other hand, has an age advantage of 20 years, 500% more physical cores and 1100% more threads, and a 2471.4% more advanced lithography process.

We couldn't decide between Pentium III 866 and Ryzen 5 5600H. We've got no test results to judge.

Note that Pentium III 866 is a desktop processor while Ryzen 5 5600H is a notebook one.


Should you still have questions on choice between Pentium III 866 and Ryzen 5 5600H, 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 5 5600H
Ryzen 5 5600H

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 4585 votes

Rate Ryzen 5 5600H 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 5 5600H, agree or disagree with our judgements, or report an error or mismatch.