---
product_id: 675072234
title: "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"
brand: "intel"
price: "A$1218"
currency: AUD
in_stock: true
reviews_count: 13
category: "Intel"
url: https://www.desertcart.com.au/products/675072234-core-ultra-9-desktop-processor-285k-24-cores-8-p
store_origin: AU
region: Australia
---

# 24 cores (8P + 16E) for hybrid power PCIe 5.0 & DDR5 support for future-proof speed Up to 5.7 GHz unlocked turbo boost 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

**Brand:** intel
**Price:** A$1218
**Availability:** ✅ In Stock

## Summary

> 🔥 Power your productivity with the Intel Core Ultra 9 – where speed meets silence!

## Quick Answers

- **What is this?** 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 by intel
- **How much does it cost?** A$1218 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/675072234-core-ultra-9-desktop-processor-285k-24-cores-8-p)

## Best For

- intel enthusiasts

## Why This Product

- Trusted intel brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Silent Efficiency:** Runs cooler and quieter even under heavy loads, so your workspace stays distraction-free.
- • **Unlocked Turbo Boost:** Push speeds up to 5.7 GHz for instant responsiveness on demanding tasks and creative workflows.
- • **Creator & Gamer Ready:** Integrated graphics and unlocked architecture make it perfect for both high-end content creation and gaming setups.
- • **Next-Gen Connectivity:** PCIe 5.0 and DDR5 support ensure your build stays cutting-edge and ready for tomorrow’s tech.
- • **Hybrid Powerhouse Performance:** 24 cores with smart workload distribution keep your multitasking seamless and efficient.

## Overview

The Intel Core Ultra 9 285K is a 24-core (8 performance + 16 efficiency cores) desktop processor with an unlocked turbo boost up to 5.7 GHz. Designed for enthusiasts and professionals, it supports PCIe 5.0, DDR5 memory, and Intel 800 series motherboards. This OEM pack CPU delivers exceptional multitasking, creative workload handling, and quiet operation, making it ideal for high-end workstations and gaming rigs alike.

## 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.

Review: 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.
Review: 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.

## Features

- Get ultra-efficient with Intel Core Ultra desktop processors that improve both performance and efficiency so your PC can run cooler, quieter, and quicker.
- Core and Threads 24 cores (8 P-cores plus 16 E-cores) and 24 threads. Integrated Intel Graphics included
- Performance Hybrid Architecture Integrates two core microarchitectures, prioritizing and distributing workloads to optimize performance
- Performance Unlocked Up to 5.7 GHz unlocked. 40MB Cache
- Compatibility Compatible with Intel 800 series chipset-based motherboards
- PCIe Express Version Turbo Boost Max Technology 3.0, and PCIe 5.0 and 4.0 support. Intel Optane Memory support. No thermal solution included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFKC99VL |
| Batteries | 1 AAAA batteries required. |
| Best Sellers Rank | #25 in Computer CPU Processors |
| Brand | Intel |
| Customer Reviews | 4.6 4.6 out of 5 stars (587) |
| Date First Available | October 24, 2024 |
| Item Dimensions LxWxH | 13.27 x 6.42 x 0.04 inches |
| Item Weight | 9.9 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 |
| RAM | 1 GB |
| Voltage | 28 Volts |

## Product Details

- **Brand:** Intel
- **CPU Manufacturer:** Intel
- **CPU Model:** Core i9
- **CPU Socket:** LGA 1851
- **CPU Speed:** 5.7 GHz

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/51xxm7JkJ6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Intel Core Ultra 9 285K
*by A***U on June 30, 2025*

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.

### ⭐⭐⭐⭐⭐ Blazing-fast desktop CPU for creators + heavy multitasking (platform upgrade required)
*by S***I on December 29, 2025*

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.

### ⭐⭐⭐⭐⭐ Great Job Intel!
*by M***S on December 18, 2025*

Everything i expected it to be and then some. Love the speed, rhe way it bring stanility and performance together.

## Frequently Bought Together

- Intel Core Ultra 9 285K Tetracosa-core [24 Core] 3.70 GHz Processor - OEM Pack - Box
- ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive
- Samsung 990 PRO SSD NVMe M.2 PCIe Gen4, M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P2T0B/AM

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-21*