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AMD Ryzen 9 7900X3D
A 12-core, 24-thread Zen 4 chip that stacks 64 MB of 3D V-Cache onto one CCD for 128 MB of total L3, aimed at gamers who also want strong multi-threaded output. It splits work across a cache-heavy CCD and a higher-clocking standard CCD, and needs scheduler cooperation to hit its best gaming results.
Pros
- 128 MB of combined L3 cache across its two CCDs gives a large boost in cache-sensitive games versus the standard 7900X
- Twelve cores and 24 threads keep it competitive in multi-threaded productivity work, unlike smaller 6- and 8-core X3D parts
- A 5.6 GHz boost clock on its non-cache CCD preserves single-thread performance for latency-sensitive tasks
- Retains AM5 platform features: DDR5, PCIe 5.0 and a built-in RDNA 2 iGPU for basic display output without a discrete GPU
- A 120 W TDP is meaningfully lower than the 170 W 7900X, easing cooler and power-supply requirements
Cons
- Manual per-core frequency overclocking is not supported; only automatic PBO/Curve Optimizer tuning is available, per in review testing
- No cooler is included, adding to the cost of a build already priced above cheaper 8-core X3D options
- Games and applications must be correctly scheduled across its two different CCDs to get the most from the extra cache, and mis-scheduling can cost performance
Excellent
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the AMD Ryzen 9 7900X3D
General
- Announced
- 2023
- Socket
- AM5
- Process
- 5 nm
- Base TDP
- 120 W
- Max turbo power
- 162 W
- Unlocked multiplier
- No
- Cooler included
- No
Cores & Clocks
- Cores
- 12
- Performance cores
- 12
- Efficiency cores
- 0
- Threads
- 24
- Base clock
- 4.4 GHz
- Boost clock
- 5.6 GHz
- L2 cache
- 12 MB
- L3 cache
- 128 MB
Integrated GPU
- iGPU
- AMD Radeon Graphics
- iGPU clock
- 2,200 MHz
Memory
- Memory support
- DDR5-5200
- Max memory
- 128 GB
- Memory channels
- 2
Platform
- PCIe version
- 5
- CPU PCIe lanes
- 28
Benchmarks
- Geekbench 6 (single)
- 3,020Top 17%
- Geekbench 6 (multi)
- 18,128Top 20%
- Cinebench R23 (single)
- 1,908Top 29%
- Cinebench R23 (multi)
- 26,747Top 19%
- PassMark
- 50,200Top 17%
Quick answers
Is the AMD Ryzen 9 7900X3D good in 2026?
The AMD Ryzen 9 7900X3D earns an Inno Score of 80.8/100 (“Excellent”) based on its specs and benchmark results. A 12-core, 24-thread Zen 4 chip that stacks 64 MB of 3D V-Cache onto one CCD for 128 MB of total L3, aimed at gamers who also want strong multi-threaded output. It splits work across a cache-heavy CCD and a higher-clocking standard CCD, and needs scheduler cooperation to hit its best gaming results.
What are the key specs of the AMD Ryzen 9 7900X3D?
Cores: 12 · Threads: 24 · Boost clock: 5.6 GHz · Socket: AM5
What are the closest alternatives to the AMD Ryzen 9 7900X3D?
Its closest rivals on InnoReviews are Intel Core i7-14700K, AMD Ryzen 9 7900X, Intel Core Ultra 5 250K Plus — open the comparison pages for a spec-by-spec breakdown.
