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AMD Ryzen 9 9900X3D
AMD's mid-tier 3D V-Cache desktop chip: twelve Zen 5 cores, 24 threads and the same 128 MB of stacked L3 cache as the flagship 9950X3D, positioned as a cheaper way into second-generation V-Cache gaming performance on AM5.
Pros
- Shares the same second-generation 3D V-Cache and 128 MB of L3 as the flagship 9950X3D at a $100 lower launch price
- Twelve Zen 5 cores and 24 threads still handle multi-threaded work better than 8-core X3D chips
- Cache relocated beneath the CCD lets it clock to 5.5 GHz, unlike the thermally limited first-generation X3D chips
- Full 28 CPU PCIe 5.0 lanes and an integrated GPU carried over from the rest of the Ryzen 9000 lineup
- Same AM5 socket and chipset support as the rest of the 9000 series, so no platform changes are needed
Cons
- Ships without a bundled cooler at the $599 price
- Only a modest core and clock step down from the 9950X3D makes the extra $100 for the flagship tempting for buyers who want maximum multi-thread throughput
- 120W default TDP still requires a capable cooler for sustained multi-core loads
- 12 cores against the 9950X3D’s 16, so it trails that chip in heavily multi-threaded work
Awaiting benchmarks
No Inno Score yet: single-core still needs a published benchmark result.
Full specifications
Everything we track for the AMD Ryzen 9 9900X3D
General
- Announced
- 2025
- Socket
- AM5
- Process
- 4 nm
- Base TDP
- 120 W
- Unlocked multiplier
- Yes
- Cooler included
- No
Cores & Clocks
- Cores
- 12
- Performance cores
- 12
- Efficiency cores
- 0
- Threads
- 24
- Base clock
- 4.4 GHz
- Boost clock
- 5.5 GHz
- L2 cache
- 12 MB
- L3 cache
- 128 MB
Integrated GPU
- iGPU
- AMD Radeon Graphics (2 CU RDNA 2)
- iGPU clock
- 2,200 MHz
Memory
- Memory support
- DDR5-5600
- Max memory
- 256 GB
- Memory channels
- 2
Platform
- PCIe version
- 5
- CPU PCIe lanes
- 28
Benchmarks
- PassMark
- 56,050Top 12%
Quick answers
Is the AMD Ryzen 9 9900X3D good in 2026?
We haven't scored the AMD Ryzen 9 9900X3D yet: there are no published single-core benchmark results for it in our database, and we don't score chips on their spec sheet alone. AMD's mid-tier 3D V-Cache desktop chip: twelve Zen 5 cores, 24 threads and the same 128 MB of stacked L3 cache as the flagship 9950X3D, positioned as a cheaper way into second-generation V-Cache gaming performance on AM5.
What are the key specs of the AMD Ryzen 9 9900X3D?
Cores: 12 · Threads: 24 · Boost clock: 5.5 GHz · Socket: AM5
What are the closest alternatives to the AMD Ryzen 9 9900X3D?
Its closest rivals on InnoReviews are AMD Ryzen 9 7900X3D, AMD Ryzen 9 7950X3D, AMD Ryzen 9 9900X — open the comparison pages for a spec-by-spec breakdown.
