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AMD Ryzen 9 7900
A 65 W version of the 12-core, 24-thread Ryzen 9 7900X that trades a lower boost clock and TDP for far better efficiency. It targets small-form-factor and efficiency-focused builds rather than outright peak clocks.
Pros
- Twelve Zen 4 cores and 24 threads at just 65 W TDP, useful for compact or quiet builds where the 170 W 7900X would need heavier cooling
- Multi-threaded output stays close to the 7900X despite the much lower power ceiling, per in review testing
- Supports the same AM5 platform features as its X sibling: DDR5, PCIe 5.0 and an integrated RDNA 2 GPU
- Fully unlocked for PBO and Curve Optimizer tuning, so some of the clock headroom given up for efficiency can be reclaimed
Cons
- Base clock drops a full 1 GHz versus the 7900X, and boost tops out 200 MHz lower
- Sustained multi-core workloads throttle earlier than the X model once the 65 W power limit is reached, per in review testing
- Retail availability has skewed toward pre-built systems more than standalone retail boxes in some markets
- No cooler is included in current retail packaging: AMD's own product page notes that, due to the SR4 cooler reaching end-of-life, this SKU's boxed version stopped including a cooler starting 8/1/2025
Very good
Computed from specs & benchmarks via our public methodology.
Full specifications
Everything we track for the AMD Ryzen 9 7900
General
- Announced
- 2023
- Socket
- AM5
- Process
- 5 nm
- Base TDP
- 65 W
- Unlocked multiplier
- Yes
- Cooler included
- No
Cores & Clocks
- Cores
- 12
- Performance cores
- 12
- Efficiency cores
- 0
- Threads
- 24
- Base clock
- 3.7 GHz
- Boost clock
- 5.4 GHz
- L2 cache
- 12 MB
- L3 cache
- 64 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)
- 2,990Top 19%
- Geekbench 6 (multi)
- 15,725Top 28%
- Cinebench R23 (single)
- 1,966Top 26%
- Cinebench R23 (multi)
- 24,776Top 21%
- PassMark
- 48,013Top 20%
Quick answers
Is the AMD Ryzen 9 7900 good in 2026?
The AMD Ryzen 9 7900 earns an Inno Score of 76.1/100 (“Very good”) based on its specs and benchmark results. A 65 W version of the 12-core, 24-thread Ryzen 9 7900X that trades a lower boost clock and TDP for far better efficiency. It targets small-form-factor and efficiency-focused builds rather than outright peak clocks.
What are the key specs of the AMD Ryzen 9 7900?
Cores: 12 · Threads: 24 · Boost clock: 5.4 GHz · Socket: AM5
What are the closest alternatives to the AMD Ryzen 9 7900?
Its closest rivals on InnoReviews are Intel Core Ultra 5 245KF, Intel Core i7-14700, AMD Ryzen 7 9800X3D — open the comparison pages for a spec-by-spec breakdown.
