Intel Core Ultra 9 Desktop Processor 285K - 24 cores (8 P-cores + 16 E-cores) and 24 threads - Up to 5.7 GHz unlocked - 40 MB Cache - Compatible with Intel 800 series chipset-based motherboards - Inte
Condition: New
$483.99
Holiday Deal
· 5% off
was $509.99
Buy Now, Pay Later
As low as
/ mo
Learn more
- – Up to 36-month term if approved
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 3 left in stock, order soon!
Arrives
Wednesday, Nov 18
Recently Viewed
At a glance
- Condition
- New
- Model
- Intel Core Ultra 9 285K
- Weight
- 10.6 oz
- CPU Manufacturer
- Intel
- CPU Model
- Core i9
- CPU Speed
- 5.7 GHz
- CPU Socket
- LGA 1851
- Warranty
- 3 year manufacturer
Features 8
- 24-core Intel Core Ultra desktop processor
- Up to 5.7 GHz max turbo frequency
- 36 MB Intel Smart Cache
- Unlocked desktop processor
- Supports DDR5 memory
- Intel AI Boost NPU integrated
- Integrated graphics included
- Built for creator workloads
Description
Intel Core Ultra 9 desktop processor 285K. Featuring PCIe 5.0 & 4.0 support and DDR5 support, unlocked Intel Core Ultra 9 desktop processors (series 2) are optimized for enthusiast gamers and serious creators and help deliver high performance. Compatible with Intel 800 Series Chipset based motherboards. 125W Processor Base Power.
Specs 27
| Brand | Intel |
|---|---|
| CPU Manufacturer | Intel |
| CPU Model | Core i9 |
| CPU Speed | 5.7 GHz |
| CPU Socket | LGA 1851 |
| Processor Series | Core i9 |
| Processor Speed | 5.7 GHz |
| Processor Socket | LGA 1851 |
| Secondary Cache | 36 MB |
| Wattage | 125 watts |
| Cache Memory Installed Size | 40 MB |
| Processor Count | 24 |
| Processor Number of Concurrent Threads | 24 |
| Processor Core Count | 24 |
| Platform | Windows 11 |
| Item Dimensions L x W | 6.75"L x 6"W |
| Software Update Supported to Date | unknown |
| Processor Brand | Intel |
| Model Number | Intel Core Ultra 9 285K |
| Number of Items | 1 |
| UPC | 735858550383 |
| Number of Packs | 1 |
| Manufacturer | Intel |
| Global Trade Identification Number | 30, 28 |
| Built-In Media | Item |
| Item Weight | 10.6 ounces |
| Mfr Part Number | BX80768285K |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Nov 18
Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Extremely Strong Productivity Processor
I am a programmer who works with compiled programming languages in a large codebase all day long, and I bought this processor after seeing it at or near the top of many compiler benchmarks. Indeed, this processor cuts through my work like a knife through hot butter, and it is a joy to watch it speed through tasks! And unlike previous generations of Intel processors, it is quite easy to keep it cool even with cheap air coolers. Despite minor overclocking, the processor stays 10-20 °C away from thermal throttling even under hours of the most intense stress tests (like Cinebench). Furthermore, the processor has been quite stable for me, as I have not encountered any crashes. Keep in mind that many of the mixed/negative reviews are focused on gaming, where the gaming performance for the price is quite disappointing. If Intel manages to iron out all of the major issues (a very big if), this processor will exhibit gaming performance similar to an i9-14900K while being significantly-more power efficient. Accordingly, this could be a strong mixed gaming/productivity processor in the future, but in the meantime, I would not buy this processor if having top-tier gaming performance is important to you. For productivity-focused users like me, however, I would highly recommend this processor for many productivity tasks, where it is often the fastest consumer-grade processor ever made.
...
show more
Reviewed in the United States on January 13, 2025 by Zach
Great CPU!
I love this CPU! Matched with 48GB DDR5 MT8400 on an Asus ROG Maximus Apex motherboard and this thing rocks! Don't let the AMD lovers get to you, this product performs brilliantly for gaming, video rendering and overall everything else. I have been building PC's since the early 90's and have used MANY Intel and A FEW AMD CPU's and for all purpose computing this one blows them away. Low termperatures (although better with an AIO cooler) and absolute top performance. The PC I just built with this chip consistantly ranks 99th+ percentile in overall performance with Passmark Performance Test.
...
show more
Reviewed in the United States on August 11, 2026 by Squirrel
Worth it. I am an Intel man
I love Intel so I might not be the best judge but this processor is sound. Better be right. The tetracosa architecture is intels most advanced processor to date. My issue was with the intel store itself. They took way.... to long to ship it out considering. I was furious. The box is small and it was very expensive. You don't sell something like this and sit around on shipping. Its not good business because $600+ for a chip is a big deal. And AMD don't play around. Its solid fans that make your money because people have options and may not notice any difference between them
...
show more
Reviewed in the United States on June 10, 2026 by Antoine Hyde
Noticeable difference.
Wow, just wow. What a difference this processor makes in the day-to-day computing speed. I thought the ultra 7 265k would be great and it's pretty good but the ultra 9 285k runs circles around it. I'm impressed.
Reviewed in the United States on July 1, 2026 by buildersRus
A step up in several ways from 13th/14th gen Intel
I use this CPU in my gaming and video editing PC and it's honestly a step up from my 13th gen PC. Intel i9 CPUs have always run hot and the Core Ultra 9 is no exception. However, unlike the 13th/14th gen CPUs, you don't need a crazy cooling setup to keep it tamed under both light and heavy load(though for the sake of longevity I would still get at least a 360mm AIO or a 420mm AIO). Even a giant tower cooler like the Noctua NH-D15 Gen 2 will keep this CPU cooled properly. I don't do any heavy OCing, but the only high temps I see are during heavy rendering or compiling shaders for games(which this CPU does VERY quickly). I've used both the Core Ultra 7 and Core Ultra 9 CPUs and unless you really need the extra amount of horse power, the Core Ultra 7 is a better value than the Core Ultra 9. Stability is also easier to achieve on this CPU thanks to it's incredible memory controller. However, you really won't realize this unless you use RAM that has a clock driver in it(Known as CUDIMM), because if you're not you will not see the speeds intel claims you can hit, and if you can hit it, gets very unstable. Installation is straightforward and the same across 1200, 1700, and 1851 sockets so there isn't much to mess up. I'll say again; you will not see the high memory speeds unless you get a CUDIMM RAM kit. Conclusion: Basically only a small step down from the previous generation, but you get so much more stability and it is way easier to cool than the previous generations. Early reviewers made it sound like you were buying an i5 processor in a i9 branding, but man is it so misleading. This CPU absolutely performs like its previous powerhouse generation. BONUS: If you already have a LGA 1700 cooler you're in luck; you can reuse it on socket 1851! the socket dimensions are identical!
...
show more
Reviewed in the United States on July 10, 2025 by Carlos Canales
This is the best read the review
Listen, this thing is a beast, there are no problems about over heating/ over voltage problems, you can overclock it but you have to water cool if you want to do that, it can game very well runs cod and anything you can throw at it , but for rendering and models and ai work, it is the best ngl those 24cores are the way to go don’t listen to those reviews it’s a great chip and is worth the money as along as you can get the supporting mods, it’s so impressive that is can run 4 sticks of ddr5 at 4000hrz crazy ngl
...
show more
Reviewed in the United States on April 15, 2026 by Axel
Blazing-fast desktop CPU for creators + heavy multitasking (platform upgrade required)
Upgraded to the Intel Core Ultra 9 285K for a new desktop build and it’s been an awesome “do-everything” chip. The hybrid layout (24 cores: 8P + 16E) keeps the system feeling snappy even with a lot going on at once, and the high boost clocks (up to 5.7 GHz) make everyday work and bursty tasks feel instant. What I like: Serious throughput for demanding workloads (editing/encoding, compiling, VMs, multitasking) Unlocked if you like tuning Integrated graphics is handy for troubleshooting or a no-GPU setup What to know before buying: This is LGA1851, so it’s a new motherboard platform (not a drop-in upgrade for older sockets). Power can ramp up under heavy loads (rated 125W base / up to 250W turbo), so plan on solid cooling and airflow. Intel Many listings don’t include a cooler, double-check what’s in the box. Overall, if you’re building a high-end desktop and want top-tier all-around performance, the 285K is a beast.
...
show more
Reviewed in the United States on December 29, 2025 by Amazon Customer
As expected. Nothing special, but as advertised. I would buy this again.
As expected. Nothing special, but as advertised. I would buy this again.
Reviewed in the United States on February 4, 2026 by IT Support