Intel Core Ultra 9 285K Review
Intel's Arrow Lake flagship. Massive multithreaded performance and dramatically improved efficiency over the previous generation. Gaming performance trails AMD's X3D chips, but productivity is competitive with the 9950X3D.
Architecture & Overview
The Intel Core Ultra 9 285K is built on the Intel Arrow Lake (LGA 1851) architecture, fabricated on a TSMC 3nm process and released in 2024. It packs 24 cores / 24 threads (8 performance + 16 efficiency) with a base clock of 3.7 GHz and boost up to 5.7 GHz. The cache hierarchy — 40MB L2 plus 36MB L3 — is the single biggest determinant of gaming performance on modern chips: gaming workloads are overwhelmingly cache-sensitive, which is why AMD's 3D V-Cache variants dominate gaming benchmarks despite often having lower raw clocks than their non-X3D siblings.
Power-wise, the chip is rated at 125W TDP, drops into an LGA 1851 socket, and supports DDR5-6400. The recommended cooler is a 360mm AIO — no stock cooler is included, so budget for one. Integrated graphics: Intel Graphics (4 Xe cores).
Performance Scores
Benchmark Context
In our database this chip posts 42,800 points in Cinebench R23 multi-threaded and 2,240 single-threaded. Cinebench is a strong proxy for productivity performance (rendering, compilation, video encoding) — the multi-threaded score scales with core count, while the single-threaded score tracks per-core speed and is the best predictor of gaming performance alongside L3 cache size.
Pros & Cons
What we like
- Strong gaming performance (82/100)
- Excellent multi-core productivity (96/100) — handles rendering, compilation, and streaming
- 24 cores / 24 threads — ample parallelism for creator workloads
What to watch out for
- No stock cooler — budget for a cooler separately
GPU Pairing Recommendation
A strong match for high-end GPUs up to the NVIDIA GeForce RTX 4080 SUPER tier. At 1440p and 4K the GPU becomes the limiter before the CPU does. At 1080p you may leave some headroom on the table if you pair it with a flagship GPU.
Check your balance with the bottleneck calculator or generate a full parts list via the build generator.
Full Specifications
| Spec | Value |
|---|---|
| Cores / Threads | 24 cores / 24 threads |
| P-Cores / E-Cores | 8 / 16 |
| Base Clock | 3.7 GHz |
| Boost Clock | 5.7 GHz |
| L3 Cache | 36 MB |
| L2 Cache | 40 MB |
| TDP | 125W |
| Socket | LGA 1851 |
| Process Node | TSMC 3nm |
| PCIe Support | PCIe 5.0 |
| Memory Support | DDR5-6400 |
| Integrated Graphics | Intel Graphics (4 Xe cores) |
| Cooler Included | No |
| Recommended Cooler | 360mm AIO |
| Cinebench R23 Multi | 42,800 |
| Cinebench R23 Single | 2,240 |
| Release Year | 2024 |
Best For
- Productivity
- Content creation
- AI workloads
Compare With Nearest Peers
Frequently Asked Questions
What motherboard do I need for the Intel Core Ultra 9 285K?
What cooler does the Intel Core Ultra 9 285K need?
What RAM should I pair with the Intel Core Ultra 9 285K?
Does the Intel Core Ultra 9 285K have integrated graphics?
How many cores does the Intel Core Ultra 9 285K have?
Where to Buy
The Intel Core Ultra 9 285K launched at $589 MSRP. Check Amazon for current pricing — prices fluctuate frequently and bundles with motherboards can be a great deal.
View on Amazon →