Intel® Core™ Ultra 9 Processor 285K 24 cores (8 P-cores + 16 E-cores) up to 5.7 GHz

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.

Good processor, it's very powerful 🥵

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!

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

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.

First time I've used Team Blue in over 10 years but I need the CODECS for video editing as now they work in concert with the CODECS in Nvidia's GPU's in DaVinci Resolve. Been a solid performer from day one with no tweaking. I haven't undervolted or anything to it, running it straight out of the box. BeQuiet Dark Pro 4 air cooler handles it with no problem.

Every year I build a new pc based on the best components available,last year It was amd but this year i went intel,and so far it’s been interesting,this year amd components are twice as expensive,i went with the msi unify x 890 motherboard and it turned out to be defective,so i returned it and purchased an asus 890 hero motherboard which i really like,but the dvi cord was defective and i thought my 4090 graphics card was defective!!! Then my asus aio water pump didn’t work,i went with a Noctua air cooler, i wondered what the heck is going on!!! I finally got it all to work,really well i might add,i love the intel ultra 9 285 processor,im able to use G.skill cudimm 8400 ram,it works flawlessly,the pc wasn’t what i had planned but turned out to be better than I had planned,so far I’m really pleased with it,but it’s definitely the last pc I’ll ever build,should I have built another amd pc instead,not on your life!!! The intel codes didn’t work though for the free games

Een prachtig stijlvol moederboard waar de kwaliteit van afstraalt. Een van de snelste Intel moederborden die nu verkrijgbaar zijn. Heel compleet en de installatie ging pijlsnel de nieuwste drivers zonder probleem snel geïnstalleerd. Het systeem krijgt na een test met mijn Core ultra 9 285K een Passmark rating van 99+ % tot de snelst presterende systemen

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.

Tod bien hasta el momento

Procesador , espectacular no da ningún problema nada que ver a las generaciones 13 y 14, es ponerlo y a correr , me sorprende también los bajos consumos que tiene y lo fresco que se mantiene, no te voy a engañar si haces overclocking si suben bastante las temperaturas y necesitas una buena refrigeración líquida. Pero en potencia y para jugar va muy bien,

Don't Worry when you watch you tube reviews; half of them take with a pinch of Salt. This Processor works well with intel's Super Boost that pretty much takes care of half the Bios settings, RAM running well CUDIMM @ 8000mts without issues. For Casual Gaming and other tasks fitted with a Crucial T705 its very fast, not had any heat issues or heat related Thermal throttles causing any Stutters, it Works well. High FPS on a 165Hrz 4k Monitor as expected, yes AMD can have an uplift in FPS so it Can be that team RED or Blue divide. Personally Heat, Power and reliability from this Core Ultra 9 is worth a loss of 10/20 fps in games. The Margin of AMD tends to Greater in 1440p. All-rounder PC then this is the Processor to buy it also has NPU, Future AI stuff. Early setups will potentially have issues if not updated to Manufacturer latest BIOS and Micro codes from INTEL. New Builds have these to hand, update the bios from flash drive prior to Windows install. less issues. Intel is releasing a refresh model prior to a new processor and chip set that is going to increase Gaming speeds but this Core 2 Ultra 9 if picked up at the right price should last for years. Half of the review for this are well out of date and Intel has done some wizardry to get it up to speed.