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AMD Ryzen 9 7900 vs AMD Ryzen 9 9950X3D: Comparison
Ryzen 9 7900 vs Ryzen 9 9950X3D: the l3 cache difference
L3 cache is where these two genuinely part company, Ryzen 9 7900 64 MB against Ryzen 9 9950X3D 128 MB, a 50% lead for Ryzen 9 9950X3D. Tdp is not the same on both, 65 W on the Ryzen 9 7900 versus 170 W on the Ryzen 9 9950X3D. There is a split on release year as well, 2023 on the Ryzen 9 7900 versus 2025 on the Ryzen 9 9950X3D. There is a split on microarchitecture as well, Zen 4 on the Ryzen 9 7900 versus Zen 5 on the Ryzen 9 9950X3D.
Which should you buy, Ryzen 9 7900 or Ryzen 9 9950X3D?
Buy the Ryzen 9 7900 for mainstream desktops and everyday productivity, though it is not the pick for competitive gaming rigs and heavy content creation. The Ryzen 9 9950X3D suits high-refresh-rate gaming and flagship gaming builds, though it is not built for budget builds and non-gaming workstation loads. Our rating of the Ryzen 9 7900 (7.9/10): the AMD Ryzen 9 7900 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag. Our rating of the Ryzen 9 9950X3D (9.2/10): the AMD Ryzen 9 9950X3D is one of the best gaming CPUs available, its huge L3 cache translating directly into higher in-game frame rates.
What Ryzen 9 7900 and Ryzen 9 9950X3D have in common
Where they agree, they agree completely, efficiency cores, integrated graphics, form factor, market segment and smt enabled included, so the decision does not turn on any of those. They match on 1 further specification as well.
Frequently asked questions
Do the Ryzen 9 7900 and Ryzen 9 9950X3D differ on total cores?
Yes. Total Cores reads 12 on the Ryzen 9 7900 versus 16 on the Ryzen 9 9950X3D.
Is the Memory Type the same on the Ryzen 9 7900 and Ryzen 9 9950X3D?
It is. Both are listed at DDR5, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 7900
- Desktop
- AMD Ryzen 9 9950X3D
- Desktop
Codename
- AMD Ryzen 9 7900
- Raphael
- AMD Ryzen 9 9950X3D
- Granite Ridge
Release Year
- AMD Ryzen 9 7900
- 2023
- AMD Ryzen 9 9950X3D
- 2025
TDP
- AMD Ryzen 9 7900
- 65 W
- AMD Ryzen 9 9950X3D
- 170 W
iGPU
- AMD Ryzen 9 7900
- AMD Radeon Graphics (2 CUs, RDNA 2)
- AMD Ryzen 9 9950X3D
- AMD Radeon Graphics
Market Segment
- AMD Ryzen 9 7900
- Desktop
- AMD Ryzen 9 9950X3D
- Desktop
Microarchitecture
- AMD Ryzen 9 7900
- Zen 4 (7000 series)
- AMD Ryzen 9 9950X3D
- Zen 5 (9000 series)
Socket
- AMD Ryzen 9 7900
- AM5 (LGA 1718)
- AMD Ryzen 9 9950X3D
- AM5
Process Node
- AMD Ryzen 9 7900
- 5 nm
- AMD Ryzen 9 9950X3D
- 4 nm
Total Cores
- AMD Ryzen 9 7900
- 12
- AMD Ryzen 9 9950X3D
- 16Best
Performance Cores
- AMD Ryzen 9 7900
- 12
- AMD Ryzen 9 9950X3D
- 16Best
Efficiency Cores
- AMD Ryzen 9 7900
- 0
- AMD Ryzen 9 9950X3D
- 0
Total Threads
- AMD Ryzen 9 7900
- 24
- AMD Ryzen 9 9950X3D
- 32Best
SMT Enabled
- AMD Ryzen 9 7900
- Yes
- AMD Ryzen 9 9950X3D
- Yes
P-Core Base Clock
- AMD Ryzen 9 7900
- 3.8 GHz
- AMD Ryzen 9 9950X3D
- 4.3 GHz
P-Core Boost Clock
- AMD Ryzen 9 7900
- 4.9 GHz
- AMD Ryzen 9 9950X3D
- 5.7 GHz
L3 Cache
- AMD Ryzen 9 7900
- 64 MB-50%
- AMD Ryzen 9 9950X3D
- 128 MBBest
Base Power
- AMD Ryzen 9 7900
- 65 W
- AMD Ryzen 9 9950X3D
- 170 W
Memory Type
- AMD Ryzen 9 7900
- DDR5
- AMD Ryzen 9 9950X3D
- DDR5
Integrated Graphics
- AMD Ryzen 9 7900
- Yes
- AMD Ryzen 9 9950X3D
- Yes
Which one should you pick?
Choose 7900 if you already have it on hand or find it at a lower price.
Choose 9950X3D if you want the higher L3 cache (128 MB vs 64 MB).
Price comparison
| Retailer | AMD Ryzen 9 7900 | AMD Ryzen 9 9950X3D |
|---|---|---|
| Newegg | View on Newegg | View on Newegg |
| Amazon | View on Amazon | $699.00 View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
AMD Ryzen 9 7900
7.9 / 10 Expert Rating
The AMD Ryzen 9 7900 is a well-rounded mainstream desktop chip that covers everyday computing and light gaming without a premium price tag.
AMD Ryzen 9 9950X3D
9.2 / 10 Expert Rating
The AMD Ryzen 9 9950X3D is one of the best gaming CPUs available, its huge L3 cache translating directly into higher in-game frame rates.