![Intel Core Ultra 9 285K Tetracosa-core [24 Core] 3.70 GHz Processor - OEM Pack - Box](https://m.media-amazon.com/images/I/51xxm7JkJ6L.jpg)

⚡ Power your ambition with the Intel Core Ultra 9 — where speed meets smart efficiency.
The Intel Core Ultra 9 285K is a 24-core (8 performance + 16 efficiency cores), 24-thread desktop processor with unlocked speeds up to 5.7 GHz. Featuring hybrid architecture, PCIe 5.0 & 4.0 support, and DDR5 compatibility, it’s designed for high-performance gaming and content creation. It runs cool and quiet, compatible with Intel 800 series motherboards, and includes integrated Intel graphics for versatile use.





| ASIN | B0DFKC99VL |
| Batteries | 1 AAAA batteries required. |
| Best Sellers Rank | #32 in Computer CPU Processors |
| Brand | Intel |
| Customer Reviews | 4.6 4.6 out of 5 stars (542) |
| Date First Available | October 24, 2024 |
| Item Dimensions LxWxH | 13.27 x 6.42 x 0.04 inches |
| Item Weight | 10.6 ounces |
| Item model number | Intel® Core™ Ultra 9 |
| Language | English |
| Manufacturer | Intel |
| Number of Processors | 24 |
| Processor | 5.7 GHz core_i9 |
| Processor Brand | Intel |
| Product Dimensions | 13.27 x 6.42 x 0.04 inches |
A**R
Great CPU
Very solid processor! Runs cool and quiet. No crashing and it's fast too.
M**S
Great Job Intel!
Everything i expected it to be and then some. Love the speed, rhe way it bring stanility and performance together.
S**I
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.
B**N
Thx for CU-DIMM compatibility! Good chip!
This CPU is easy to like bc it’s chill. Truly lol Great stable performance without being hot enough to fry an egg. Pair it with CUDIMM 8000mt/s and a Z890 board for best results.
A**U
Intel Core Ultra 9 285K
My latest build June 18, 2025 was an all blackout no ARGB workstation to run SolidWorks: Intel Core Ultra 9 285k, MSI MAG Tomahawk Z890E wifi motherboard, G.Skill Flare X5 DDR5 64GB 6000 MT/S, Samsung 990 Pro SSD 1TB M.2, Thermaltake Toughpower GF A3 1050 watts power supply, upHere 8x6mm heat pipes direct contact 280Watt TDP CPU air cooler, Corsair 4000 RS Frame case, Corsair RS 120mm case fan, and PNY Nvidia RTX 2000 ADA 16GB GPU. The first thing I did was to update the BIOS on the mobo. With nothing(no RAM no CPU) on the mobo I inserted a 32GB USB flash drive with the latest BIOS file on it into the BIOS flash USB port, connected the power supply 8-pin and 24-pin cables to the mobo, turned on the power supply and press the BIOS flash button on the mobo, and in about five minutes the BIOS update was done (the LED light went out). Assembled all the parts into the case. I applied a very thin and even layer of thermal paste to both the CPU and the CPU cooler. For air flow I did three 120mm fans intake in the front and one 120mm fan at the rear. This fans arrangement forces cool air to flow across the entire motherboard which cools the RAM, VRM, help CPU air cooler intake and the GPU. I ran Cinebench 2024 and Core Temp for a10-minutes multicore stress test. With all 24 cores running at 100% the temperature range for all cores varied from 73 to 78 with every now and then a couple of cores spiked to 82 on for a few seconds then came back down under 80 degrees. The 285k drew around 205watts during the stress test. Even all six fans (four on the case, two on air cooler) rammed up to 100% the whole system was not noisy at all. I let the system burnt in for 24 hours and not a single hiccup. The CPU was very stable, the temperature was low and the system was very quiet. The Nvidia RTX 2000 ADA 16GB GPU is not for gaming and this system was not intended for gaming but for work station doing CAD type program specifically SolidWorks. I did a similar system back in January this year with the same CPU and mobo and I must say I was and I am impressed by the performance, reliability and stability of the Intel Core Ultra 285K and MSI MAG Tomahawk motherboard. Final thought: In day to day real life working with SolidWorks the 24 cores of the CPU will hardly reach 100% capacity. This is an over-built quiet system with a lot of horsepower to spare and most importantly a stable system for professional work.
V**S
Very capable and energy efficient processor.
This crushes anything I can throw at it. I'm amazed with how efficient it is and with a proper cooling setup, how cool it runs compared to my (very) old 7700k. I'll have to try overclocking it soon, but even at stock power, it's a beast.
Q**N
good quality
It is a great processor
P**L
Loving the New Ultra Series
Excellent Processor, especially for people who do more than just game on a PC. (I do also game & it shreds 1440 resolution-2K gaming, paired with a 5070 Ti Graphics card) . I put it in a full-size computer case that has good air flow & with a $98 liquid cooler (360mm AIO ) and at load it never reaches 60C. So if you build the computer correctly, heat is not an issue. These Intel Ultras run efficient and cool if you build the computer the right way.
J**O
Excellent processeur, stable et performant dans les applications de productivité mais aussi en jeux, bien aidé par les derniers microcodes d’Intel et les optimisations des firmware de carte mères. Bien moins energivore que les générations précédentes Raptor Lake. Contrôleur mémoire bien mieux optimisé.
T**T
This is my first 9 core processor, and it's a beast! Doesn't heat fast, stable, and was easy to install. Great performances
Z**A
Wat kun je hierover zeggen? Lekker snel, wel prijzig, maar dat weet je op voorhand. Het is de bedoeling de pc te gebruiken voor AI.
A**ー
お値段しますので当たり前ですが、以前AMDX1950。32コア使用していました。 こちらのUPUは24コアで1/3の時間でエンコードなどこなしております。 ソフトにもよりますが、AVIUTL使用ならこれベストですよGPU使えないのでw
M**L
This CPU is a beast, It can run a 84b LLM just on the chip.
Trustpilot
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