Quick Verdict
An exceptionally power-efficient 24-core processor ideal for compact builds and 24/7 operations where thermal constraints are a primary concern.
Overview
Launch
Jan 7th, 2025
Status
ActiveGeneration
Ultra 9 (Arrow Lake)
Market
Desktop
The Intel Core Ultra 9 285T is a low-power, 24-core desktop processor built on the Arrow Lake-S architecture, offering strong efficiency and integrated Xe graphics for compact workstations.
The Intel Core Ultra 9 285T is a highly efficient desktop processor designed for users who prioritize low power consumption without sacrificing multi-threaded capability. Released in January 2025, this Arrow Lake-S chip features a unique 24-core configuration comprising 8 Lion Cove P-cores and 16 Skymont E-cores, totaling 24 threads. Manufactured on TSMC's 3nm process, it delivers exceptional efficiency within a 35-watt base power envelope.
Unlike its unlocked siblings, the 285T operates at a reduced base frequency of 1.4 GHz but can boost up to 5.4 GHz when workloads demand it.
It includes 36 MB of L3 cache and integrates Arc Xe-LPG graphics with 64 execution units. This processor fits into the LGA 1851 socket and supports DDR5-6400 memory. The 285T is ideal for small form factor builds, home servers, and office environments where thermal constraints and energy efficiency are critical factors over raw, sustained overclocked performance.
Specifications
Performance
Strong multi-core performance despite low power, great for office tasks.
24 cores make it highly capable for running multiple VMs efficiently.
Not designed for high-end gaming, but iGPU handles casual titles well.
Industry-leading performance-per-watt for a desktop processor.
- •Arc 64EU iGPU is suitable for light 1080p gaming
- •Not a replacement for a discrete GPU
- •Low base clock limits performance in CPU-bound games
- •13 TOPS NPU handles background AI tasks
- •Not Copilot+ PC certified
- •CPU and GPU contribute additional TOPS
Architecture
3 nm (TSMC)
Process Node
Arrow Lake-S
Codename
24C / 24T
Core Config
36 MB
L3 Cache
35 W
TDP
Architecture Overview
The Arrow Lake-S architecture represents a significant shift for Intel, utilizing a disaggregated tile-based design manufactured by TSMC. The Core Ultra 9 285T uses the Compute tile built on the N3B 3nm process, housing 8 Lion Cove P-cores designed for high single-threaded performance and 16 Skymont E-cores optimized for throughput and efficiency.
CPU Design
This generation removes Hyper-Threading, relying on physical cores for multi-threading. The 24 cores operate without virtual threads, reducing scheduling overhead and improving power efficiency.
Memory Subsystem
Memory support is handled by a dual-channel DDR5 controller natively running at 6400 MT/s, providing ample bandwidth for everyday applications and intensive background tasks.
PCIe & I/O
For expansion, it provides 20 PCIe 5.0 lanes directly from the CPU, enabling high-speed NVMe storage and discrete GPUs.
Overclocking
The integrated Arc Xe-LPG graphics feature 64 EUs, offering capable display output. The NPU provides 13 TOPS of AI performance. This combination allows the 285T to maintain high boost clocks within its 35W TDP.
- Transition to 3nm TSMC process
- Introduction of NPU for AI
- Removal of Hyper-Threading for physical core efficiency
Key Highlights
- Exceptional 35W power efficiency
- 24 physical cores for heavy multitasking
- Includes integrated Arc Xe-LPG graphics
- Supports DDR5-6400 and PCIe 5.0
- Quiet operation potential
- Locked multiplier prevents overclocking
- Low base clock of 1.4 GHz
- Overpriced for pure gaming builds
- Limited PL2 duration due to thermal constraints
History
The Core Ultra 9 285T launched as part of Intel's second wave of Arrow Lake desktop processors in early 2025, following the initial rollout of the K-series in late 2024. The 'T' suffix has historically denoted low-power desktop chips in Intel's lineup, and the 285T continued this tradition in the new Core Ultra era. As the desktop market shifted toward extreme performance and high power draws, Intel recognized the need for power-efficient alternatives.
The 285T addressed this by bringing the advanced 3nm Lion Cove and Skymont architectures to a strict 35W envelope. This release coincided with the broader industry push for AI integration, featuring an NPU alongside the integrated Arc graphics. The chip was positioned for eco-conscious users, small form factor enthusiasts, and commercial deployments needing modern instruction sets without the thermal output of standard parts.
It marked a pivotal moment in bringing cutting-edge efficiency to the mainstream desktop market.
Improvements over Previous Generation
- Transition to 3nm TSMC process
- Introduction of NPU for AI
- Removal of Hyper-Threading for physical core efficiency
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Building a compact, energy-efficient system like a home server or mini-PC.
Avoid if…
- You want to overclock your CPU.
- You need maximum sustained multi-core performance.
- You are building a high-end gaming rig with a discrete GPU.
Use Cases
Interesting Facts
The 'T' suffix has been Intel's designation for energy-optimized desktop chips since the Sandy Bridge era.
Despite 24 cores, it operates within the same power envelope as many mobile processors.
It uses TSMC's 3nm node, marking a departure from Intel's internal foundries for compute tiles.
The NPU can offload background tasks like blur reduction in video calls without waking the GPU.
People Also Ask
What is the TDP of the Core Ultra 9 285T?
The base TDP (PL1) is 35 watts, making it highly power-efficient.
Can you overclock the Intel Core Ultra 9 285T?
No, the multiplier is locked, preventing manual overclocking.
How many cores does the 285T have?
It has 24 total cores: 8 P-Cores and 16 E-Cores.
Does the Core Ultra 9 285T come with a cooler?
No, Arrow Lake processors do not include stock coolers.
Is the 285T good for gaming?
It is not ideal for high-end gaming due to lower base clocks, but fine for casual play.
What socket does the 285T use?
It uses the Intel LGA 1851 socket.
What generation is the Core Ultra 9 285T?
It is part of the Intel Core Ultra Series 2 (Arrow Lake) generation.
Does it support DDR4 memory?
No, Arrow Lake processors exclusively support DDR5 memory.
What is the max turbo frequency of the 285T?
The maximum turbo frequency is 5.4 GHz.
Does the 285T have an NPU?
Yes, it integrates an NPU capable of 13 TOPS.
Frequently Asked Questions
What chipset is needed for the Core Ultra 9 285T?
It is compatible with Z890, B860, W880, Q870, and H810 chipsets.
Does the Core Ultra 9 285T support Hyper-Threading?
No, Arrow Lake removes Hyper-Threading, relying purely on physical cores.
What graphics are integrated into the 285T?
It features Intel Arc Xe-LPG Graphics with 64 Execution Units.
What is the PL2 (max turbo power) of the 285T?
The PL2 is 112 watts.
Is the 285T good for a home server?
Yes, its 35W TDP and 24 cores make it excellent for home servers and NAS.
Can I use DDR4 with the Core Ultra 9 285T?
No, it only supports DDR5 memory up to 6400 MT/s.
What is the L3 cache size of the 285T?
It has 36 MB of shared L3 cache.
What process node is used for the 285T?
The compute tile is manufactured on TSMC's 3nm process.
Does the 285T support PCIe 5.0?
Yes, it provides 20 lanes of PCIe 5.0 directly from the CPU.
When was the Core Ultra 9 285T released?
It was released on January 7th, 2025.