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AMD Ryzen PRO 5 7645 vs AMD Ryzen PRO 9 9955: Comparison
What is the difference between Ryzen PRO 5 7645 and Ryzen PRO 9 9955?
L3 cache is where these two genuinely part company, Ryzen PRO 5 7645 32 MB against Ryzen PRO 9 9955 64 MB, a 50% lead for Ryzen PRO 9 9955. On total cores there is little in it, 6 on the Ryzen PRO 5 7645 versus 16 on the Ryzen PRO 9 9955. The total threads figures are near enough to ignore, 12 on the Ryzen PRO 5 7645 versus 32 on the Ryzen PRO 9 9955. There is a split on release year as well, 2023 on the Ryzen PRO 5 7645 versus 2024 on the Ryzen PRO 9 9955. There is a split on microarchitecture as well, Zen 4 on the Ryzen PRO 5 7645 versus Zen 5 on the Ryzen PRO 9 9955.
Ryzen PRO 5 7645 vs Ryzen PRO 9 9955: which one fits your build
The Ryzen PRO 5 7645 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. Buy the Ryzen PRO 9 9955 for mainstream desktops and everyday productivity, though it is not built for competitive gaming rigs and heavy content creation. Our rating of the Ryzen PRO 5 7645 (7.9/10): the AMD Ryzen PRO 5 7645 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag. Our rating of the 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.
What Ryzen PRO 5 7645 and Ryzen PRO 9 9955 have in common
Everything else lines up. P-core boost clock, p-core base clock, tdp, socket and form factor read the same on both, so those are not worth weighing. They match on 1 further specification as well.
Frequently asked questions
Is the iGPU the same on the Ryzen PRO 5 7645 and Ryzen PRO 9 9955?
It is. Both are listed at AMD Radeon Graphics, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen PRO 5 7645
- Desktop
- AMD Ryzen PRO 9 9955
- Desktop
Release Year
- AMD Ryzen PRO 5 7645
- 2023
- AMD Ryzen PRO 9 9955
- 2024
TDP
- AMD Ryzen PRO 5 7645
- 65 W
- AMD Ryzen PRO 9 9955
- 65 W
iGPU
- AMD Ryzen PRO 5 7645
- AMD Radeon Graphics (2 CUs, RDNA 2)
- AMD Ryzen PRO 9 9955
- AMD Radeon Graphics (2 CUs, RDNA 2)
Microarchitecture
- AMD Ryzen PRO 5 7645
- Zen 4 (7000 series)
- AMD Ryzen PRO 9 9955
- Zen 5 (9000 series)
Socket
- AMD Ryzen PRO 5 7645
- AM5 (LGA 1718)
- AMD Ryzen PRO 9 9955
- AM5 (LGA 1718)
Total Cores
- AMD Ryzen PRO 5 7645
- 6
- AMD Ryzen PRO 9 9955
- 16Best
Total Threads
- AMD Ryzen PRO 5 7645
- 12
- AMD Ryzen PRO 9 9955
- 32Best
P-Core Base Clock
- AMD Ryzen PRO 5 7645
- 3.8 GHz
- AMD Ryzen PRO 9 9955
- 3.8 GHz
P-Core Boost Clock
- AMD Ryzen PRO 5 7645
- 4.9 GHz
- AMD Ryzen PRO 9 9955
- 4.9 GHz
L3 Cache
- AMD Ryzen PRO 5 7645
- 32 MB-50%
- AMD Ryzen PRO 9 9955
- 64 MBBest
Which one should you pick?
Choose 7645 if you already have it on hand or find it at a lower price.
Choose 9955 if you want the higher L3 cache (64 MB vs 32 MB).
Verdict
AMD Ryzen PRO 5 7645
7.9 / 10 Expert Rating
The AMD Ryzen PRO 5 7645 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.
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.




