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AMD Ryzen PRO 9 9955 vs Apple M3 Ultra: Comparison
AMD Ryzen PRO 9 9955 vs Apple M3 Ultra total cores compared
Expect a near tie. The closest thing to a difference is total cores, AMD Ryzen PRO 9 9955 16 against Apple M3 Ultra 32. They differ on tdp too, 65 W on the AMD Ryzen PRO 9 9955 versus 80 W on the Apple M3 Ultra. There is a split on socket as well, AM5 on the AMD Ryzen PRO 9 9955 versus Soldered on the Apple M3 Ultra. They differ on release year too, 2024 on the AMD Ryzen PRO 9 9955 versus 2025 on the Apple M3 Ultra. Microarchitecture is not the same on both, Zen 5 on the AMD Ryzen PRO 9 9955 versus Apple Silicon, Third Generation on the Apple M3 Ultra.
Which should you buy, AMD Ryzen PRO 9 9955 or Apple M3 Ultra?
Buy the AMD Ryzen PRO 9 9955 for mainstream desktops and everyday productivity, though it is not built for competitive gaming rigs and heavy content creation. it is the wrong buy for anyone needing a portable chip, this is desktop-only silicon. It also earns its place with Mac Studio buyers running the most demanding local AI, video, or 3D workloads that can use 32 CPU cores. Avoid it for typical everyday or light creative use, where the cost premium isn't justified. Our rating of the AMD Ryzen PRO 9 9955 (7.9/10): the AMD Ryzen PRO 9 9955 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.
Frequently asked questions
Do the AMD Ryzen PRO 9 9955 and Apple M3 Ultra differ on p-core boost clock?
Yes. P-Core Boost Clock reads 4.9 GHz on the AMD Ryzen PRO 9 9955 versus 4.05 GHz on the Apple M3 Ultra.
Is the Total Threads the same on the AMD Ryzen PRO 9 9955 and Apple M3 Ultra?
It is. Both are listed at 32, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen PRO 9 9955
- Desktop
- Apple M3 Ultra
- Desktop
Release Year
- AMD Ryzen PRO 9 9955
- 2024
- Apple M3 Ultra
- 2025
TDP
- AMD Ryzen PRO 9 9955
- 65 W
- Apple M3 Ultra
- 80 W
Microarchitecture
- AMD Ryzen PRO 9 9955
- Zen 5 (9000 series)
- Apple M3 Ultra
- Apple Silicon, Third Generation
Socket
- AMD Ryzen PRO 9 9955
- AM5 (LGA 1718)
- Apple M3 Ultra
- Soldered
Total Cores
- AMD Ryzen PRO 9 9955
- 16
- Apple M3 Ultra
- 32Best
Total Threads
- AMD Ryzen PRO 9 9955
- 32
- Apple M3 Ultra
- 32
P-Core Base Clock
- AMD Ryzen PRO 9 9955
- 3.8 GHz
- Apple M3 Ultra
- 2.75 GHz
P-Core Boost Clock
- AMD Ryzen PRO 9 9955
- 4.9 GHz
- Apple M3 Ultra
- 4.05 GHz
Which one should you pick?
Choose 9955 if you already have it on hand or find it at a lower price.
Choose M3 Ultra if you already have it on hand or find it at a lower price.
Verdict
AMD Ryzen PRO 9 9955
7.9 / 10 Expert Rating
The AMD Ryzen PRO 9 9955 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.