Ryzen 9 7945HX vs Pentium III 800

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Primary details

Comparing Pentium III 800 and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated110
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Power efficiencyno data59.24
Architecture codenameCoppermine T (2000)Dragon Range-HX (Zen 4) (2023−2024)
Release dateno data (2024 years ago)4 January 2023 (1 year ago)

Detailed specifications

Pentium III 800 and Ryzen 9 7945HX 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)
Threadsno data32
Base clock speedno data2.5 GHz
Boost clock speed0.8 GHz5.4 GHz
L1 cache8 KB64K (per core)
L2 cache256 KB1 MB (per core)
L3 cache0 KB64 MB (shared)
Chip lithography180 nmCCD = 5 nm, I/O = 6 nm
Die size80 mm22x 71 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)69 °Cno data
Number of transistors44 million13,140 million
64 bit support-+
Windows 11 compatibility-+
Unlocked multiplier-+

Compatibility

Information on Pentium III 800 and Ryzen 9 7945HX 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 configuration11
Socket370FL1
Power consumption (TDP)38 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium III 800 and Ryzen 9 7945HX. 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, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI-+
FMA-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium III 800 and Ryzen 9 7945HX are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium III 800 and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by Pentium III 800 and Ryzen 9 7945HX.

PCIe versionno data5.0
PCI Express lanesno data28

Pros & cons summary


Physical cores 1 16
Power consumption (TDP) 38 Watt 55 Watt

Pentium III 800 has 44.7% lower power consumption.

Ryzen 9 7945HX, on the other hand, has 1500% more physical cores.

We couldn't decide between Pentium III 800 and Ryzen 9 7945HX. We've got no test results to judge.

Note that Pentium III 800 is a desktop processor while Ryzen 9 7945HX is a notebook one.


Should you still have questions on choice between Pentium III 800 and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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Intel Pentium III  800
Pentium III 800
AMD Ryzen 9 7945HX
Ryzen 9 7945HX

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Community ratings

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