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AMD Ryzen 9 PRO 9945 vs Apple M3 Ultra: Comparison
AMD Ryzen 9 PRO 9945 vs Apple M3 Ultra total cores compared
Expect a near tie. The closest thing to a difference is total cores, AMD Ryzen 9 PRO 9945 12 against Apple M3 Ultra 32. They differ on tdp too, 65 W on the AMD Ryzen 9 PRO 9945 versus 80 W on the Apple M3 Ultra. There is a split on socket as well, AM5 on the AMD Ryzen 9 PRO 9945 versus Soldered on the Apple M3 Ultra. They differ on microarchitecture too, Zen 5 on the AMD Ryzen 9 PRO 9945 versus Apple Silicon, Third Generation on the Apple M3 Ultra.
Which should you buy, AMD Ryzen 9 PRO 9945 or Apple M3 Ultra?
The AMD Ryzen 9 PRO 9945 is the one to take for mainstream desktops and everyday productivity, though it is not the pick 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 9 PRO 9945 (7.9/10): the AMD Ryzen PRO 9 9945 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.
Where the two are identical
Everything else lines up. Integrated graphics, form factor, release year and market segment read the same on both, so those are not worth weighing.
Frequently asked questions
Do the AMD Ryzen 9 PRO 9945 and Apple M3 Ultra differ on performance cores?
Yes. Performance Cores reads 12 on the AMD Ryzen 9 PRO 9945 versus 24 on the Apple M3 Ultra.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 PRO 9945
- Desktop
- Apple M3 Ultra
- Desktop
Release Year
- AMD Ryzen 9 PRO 9945
- 2025
- Apple M3 Ultra
- 2025
TDP
- AMD Ryzen 9 PRO 9945
- 65 W
- Apple M3 Ultra
- 80 W
Market Segment
- AMD Ryzen 9 PRO 9945
- Desktop
- Apple M3 Ultra
- Desktop
Microarchitecture
- AMD Ryzen 9 PRO 9945
- Zen 5 (9000 series)
- Apple M3 Ultra
- Apple Silicon, Third Generation
Socket
- AMD Ryzen 9 PRO 9945
- AM5
- Apple M3 Ultra
- Soldered
Process Node
- AMD Ryzen 9 PRO 9945
- TSMC 4nm FinFET
- Apple M3 Ultra
- 3 nm
Total Cores
- AMD Ryzen 9 PRO 9945
- 12
- Apple M3 Ultra
- 32Best
Performance Cores
- AMD Ryzen 9 PRO 9945
- 12
- Apple M3 Ultra
- 24Best
Efficiency Cores
- AMD Ryzen 9 PRO 9945
- 0
- Apple M3 Ultra
- 8Best
Total Threads
- AMD Ryzen 9 PRO 9945
- 24
- Apple M3 Ultra
- 32Best
SMT Enabled
- AMD Ryzen 9 PRO 9945
- Yes
- Apple M3 Ultra
- No
P-Core Base Clock
- AMD Ryzen 9 PRO 9945
- 3.4 GHz
- Apple M3 Ultra
- 2.75 GHz
P-Core Boost Clock
- AMD Ryzen 9 PRO 9945
- 5.4 GHz
- Apple M3 Ultra
- 4.05 GHz
Base Power
- AMD Ryzen 9 PRO 9945
- 65 W
- Apple M3 Ultra
- 80 W
Memory Type
- AMD Ryzen 9 PRO 9945
- DDR5
- Apple M3 Ultra
- On-Package LPDDR5X
Integrated Graphics
- AMD Ryzen 9 PRO 9945
- Yes
- Apple M3 Ultra
- Yes
Which one should you pick?
Choose 9945 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 9 PRO 9945
7.9 / 10 Expert Rating
The AMD Ryzen PRO 9 9945 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.