9th Gen Intel Core i9 9800X
- Boost/Base Clock:
- 4.5 GHz / 3.8 GHz
- Core/Thread Count:
- 8 Core / 16 Thread
- Cache:
- 16.5MB L3 + 8MB L2 + 512KB L1
- TDP:
- 165 Watts
- CPU Socket:
- FCLGA2066
- CPU Series:
- Skylake-X
- Memory Support:
- DDR4-2666
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Manufacturer: Intel Last updated: September 9, 2026
Description
The 9th Gen Intel Core i9 9800X is the entry point into Intel's 9th Gen X-series HEDT stack, an 8-core, 16-thread processor running a genuinely high 3.8 GHz base clock that boosts to 4.5 GHz within a 165 Watt TDP.
As the most accessible core-count option in the 9th Gen X-series lineup, this chip offered the genuine HEDT platform advantages of quad-channel memory at the lowest core count within the stack.
Platform
This HEDT chip requires an X299-series motherboard on the LGA2066 socket, typically paired with quad-channel memory for genuine workstation-scale bandwidth.
How Is the Core i9 9800X in Terms of Performance
With 8 cores and 16 threads plus a genuinely high 3.8 GHz base clock, this chip offers the HEDT platform's memory bandwidth advantages at the most accessible core-count entry point within the 9th Gen X-series stack.
Benchmarks
As the entry-tier chip in Intel's 9th Gen X-series HEDT lineup with a strong 3.8 GHz base clock, this processor delivers solid per-core performance alongside genuine HEDT platform access at the stack's most accessible core count.
Specifications
| Form Factor | Server & Enthusiast |
|---|---|
| Brand | Intel |
| Series | Core i9 |
| Model Number | 9800X |
| Boost/Base Clock | 4.5 GHz / 3.8 GHz |
| Core/Thread Count | 8 Core / 16 Thread |
| Cache | 16.5MB L3 + 8MB L2 + 512KB L1 |
| TDP | 165 Watts |
| CPU Socket | FCLGA2066 |
| CPU Series | Skylake-X, 9th Gen Intel Core |
| Memory Support | DDR4-2666, non-ECC (ECC not supported) |
Expert Review
Rated by the Consumercarts editorial team, not by users
Best for
- Buyers wanting HEDT platform features at the most accessible entry point in Intel's 9th Gen X-series stack
Not for
- Buyers needing higher core counts — the 9820X, 9920X, and 9960X offer more on the same platform