Quick Verdict
A power-efficient 10-core desktop CPU suited for SFF builds and always-on systems, but the severely constrained PL1 limits sustained performance compared to the standard 225.
Overview
Launch
2025
Status
ActiveGeneration
Ultra 5 (Arrow Lake)
Market
Desktop
The Intel Core Ultra 5 225T is a 10-core low-power desktop processor built on Arrow Lake-S architecture, featuring 6 Lion Cove P-cores and 4 Skymont E-cores with a reduced 35W PL1 for compact and energy-efficient desktop builds.
The Core Ultra 5 225T takes the same 6 P-core and 4 E-core configuration as the standard 225 but slashes the PL1 base power from 65W to just 35W. This makes it ideal for small-form-factor builds where cooling is limited, but the reduced power budget means it cannot sustain the same boost frequencies. The 16EU Xe-LPG iGPU and NPU 3 are included but are minimal implementations best suited for display output and basic AI tasks.
Specifications
Performance
Handles office and development workloads well, but sustained multi-core tasks run slower due to power constraints.
10 threads are usable for light VM workloads, but power limits make it less ideal for running multiple VMs simultaneously.
Adequate for gaming when paired with a discrete GPU, but the 35W PL1 may cause lower 1% lows in CPU-bound scenarios compared to the standard 225.
Excellent efficiency at base power, though the PL2 turbo window means actual power draw varies significantly under load.
- •Requires a discrete GPU for meaningful gaming
- •35W PL1 may limit CPU-bound framerates in some titles
- •Strong single-thread IPC of Lion Cove helps in CPU-limited scenarios
- •16EU iGPU is insufficient for modern gaming
- •NPU 3 provides 13 TOPS for AI inference tasks
- •16EU Xe-LPG contributes only 4 TOPS from the GPU
- •Total combined AI performance is 23 TOPS
- •Suitable for basic AI assistance features but not intensive workloads
Architecture
3nm (TSMC)
Process Node
Arrow Lake-S
Codename
10C / 10T
Core Config
20 MB
L3 Cache
65 W
TDP
Architecture Overview
Arrow Lake-S uses a disaggregated design with a TSMC 3nm compute tile containing the CPU cores, paired with IO and SOC tiles on older nodes. The 225T uses the same die as other 10-core Arrow Lake-S parts.
CPU Design
6 Lion Cove P-cores for single-threaded and lightly threaded tasks, 4 Skymont E-cores for background and multi-threaded work. No Hyper-Threading on either core type.
Memory Subsystem
Dual-channel DDR5 with native support up to 6400 MT/s. No DDR4 support on the LGA 1851 platform.
PCIe & I/O
20 PCIe 5.0 lanes from the CPU (typically used for a discrete GPU) plus 4 PCIe 4.0 secondary lanes from the chipset for NVMe storage.
Overclocking
Multiplier is locked, consistent with non-K Intel desktop processors.
- Lion Cove P-cores deliver substantially higher IPC than Raptor Cove
- Skymont E-cores are a generational leap over Gracemont E-cores
- NPU 3 adds dedicated AI inference capability absent from 14th Gen
- DDR5-only memory controller eliminates DDR4 compatibility overhead
Key Highlights
- 35W PL1 enables very compact and quiet builds
- Modern Lion Cove and Skymont architectures provide strong IPC
- NPU 3 inclusion future-proofs for AI workloads
- Full LGA 1851 platform features including PCIe 5.0
- Lower idle power consumption suitable for always-on systems
- 35W PL1 significantly reduces sustained performance versus the 225
- Only 16EU Xe-LPG graphics, the weakest iGPU in Arrow Lake-S
- No Hyper-Threading limits thread-level parallelism
- DDR5-only with no backward compatibility
- Hard to justify over the standard 225 for most users
History
The Core Ultra 5 225T represents Intel's attempt to capture the low-power desktop market segment, sitting alongside the standard 225 but with a significantly reduced PL1 power limit of just 35 watts. This T suffix strategy mirrors what Intel has done in previous generations, offering system builders an option for small-form-factor or passively cooled designs where thermal headroom is limited.</br></br>Built on the same Arrow Lake-S die as its higher-power siblings, the 225T benefits from the same Lion Cove P-core and Skymont E-core microarchitectures, meaning it loses none of the IPC gains that define this generation.
However, the constrained power budget means it cannot sustain the same boost frequencies as the standard 225, making it better suited for always-on workstations, home servers, or compact office PCs where consistent baseline performance matters more than peak burst capability.</br></br>The 16EU Xe-LPG integrated graphics further signal its non-gaming orientation, providing just enough GPU capability for display output and basic video decode without adding significant die area or power draw.
Improvements over Previous Generation
- Lion Cove P-cores deliver substantially higher IPC than Raptor Cove
- Skymont E-cores are a generational leap over Gracemont E-cores
- NPU 3 adds dedicated AI inference capability absent from 14th Gen
- DDR5-only memory controller eliminates DDR4 compatibility overhead
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
Building a compact SFF PC or home server where 35W base power is a hard requirement
Avoid if…
- You want the best performance per dollar on the Arrow Lake platform
- You plan to do any gaming without a discrete GPU
- Your chassis can handle 65W cooling, in which case the standard 225 is better
Use Cases
Interesting Facts
The 225T shares the same 243mm² die as all other Arrow Lake-S processors, meaning you are paying for transistors the power limit prevents you from fully utilizing.
Its 35W PL1 is less than half the 65W PL1 of the standard 225, yet the 65W TDP label on the box remains the same.
The 16EU Xe-LPG iGPU is the smallest graphics configuration in the Arrow Lake-S desktop lineup, contributing only 4 TOPS to AI workloads.
Despite the T suffix, the PL2 of 114W is actually lower than the standard 225's 121W.
The 225T launched without an official launch price, suggesting it may be primarily an OEM-focused SKU.
Its part number is listed as unknown on specification databases, indicating limited retail availability.
The 225T lacks several instruction set extensions present in higher-tier Arrow Lake models, including AVX-VNNI and Speed Shift.
Arrow Lake-S desktop processors eliminated Hyper-Threading entirely, a first for Intel's mainstream desktop line since Hyper-Threading was introduced.
The 225T's E-cores can boost to 4.4 GHz, matching the boost clock of E-cores in much higher-tier Arrow Lake-S processors.
At 17.8 billion transistors, the 225T has more transistors than many previous-generation flagship desktop CPUs.
People Also Ask
What does the T suffix mean on Intel Core Ultra 5 225T?
The T suffix indicates a low-power variant with a reduced PL1 (base power limit) of 35W instead of the standard 65W, designed for compact or energy-efficient desktop systems.
Is the Core Ultra 5 225T good for gaming?
Only when paired with a discrete GPU. The 16EU integrated graphics are too weak for modern gaming, and the 35W PL1 may limit CPU performance in CPU-bound games.
Can the 225T run on a B860 motherboard?
Yes, the 225T is compatible with all LGA 1851 chipsets including Z890, B860, W880, Q870, and H810.
What cooler do I need for the Intel Core Ultra 5 225T?
Due to the 35W PL1, even a modest low-profile cooler can handle the 225T. However, the 114W PL2 means brief turbo spikes require some thermal headroom.
Does the Core Ultra 5 225T have an NPU?
Yes, it includes the NPU 3 unit providing 13 TOPS of AI inference performance, the same as other Arrow Lake-S processors.
How does the 225T compare to the regular 225?
They share the same 10-core configuration, but the 225T has a 35W PL1 versus 65W on the 225, resulting in lower sustained performance. The 225T also has a slightly lower PL2 (114W vs 121W).
Is the Core Ultra 5 225T unlocked for overclocking?
No, the multiplier is locked. Only K-series Intel processors support multiplier overclocking.
What is the difference between PL1 and TDP on the 225T?
TDP is rated at 65W (the processor's thermal design point), while PL1 is the sustained power limit set to 35W for this T variant. PL2 of 114W is the short-term turbo power limit.
Can the Core Ultra 5 225T handle 4K video playback?
Yes, the processor and its integrated graphics support hardware-accelerated 4K video decoding including AV1, HEVC, and VP9 codecs.
Is the Core Ultra 5 225T worth it over the 225?
For most users, no. The standard 225 costs nearly the same but offers significantly better sustained performance. The 225T only makes sense if your chassis or cooling solution genuinely cannot handle 65W.
Frequently Asked Questions
What socket does the Core Ultra 5 225T use?
LGA 1851, which is exclusive to the Arrow Lake-S desktop platform.
Does the 225T support DDR4 memory?
No. Arrow Lake-S is DDR5-only. DDR4 is not supported on the LGA 1851 platform.
How many PCIe lanes does the 225T have?
20 PCIe 5.0 lanes from the CPU (for GPU) plus 4 PCIe 4.0 lanes from the chipset (for storage).
What is the base clock of the Core Ultra 5 225T?
2.5 GHz for P-cores, with E-cores at 1.9 GHz base.
What is the maximum boost clock of the 225T?
Up to 4.9 GHz on P-cores and up to 4.4 GHz on E-cores.
Does the 225T have vPro support?
Based on the available specification data, the 225T does not list vPro among its features, suggesting it is a consumer-only SKU.
What is the L3 cache size of the 225T?
20 MB shared L3 cache.
Can the 225T be used in a home server?
Yes, its low PL1 power and 10 cores make it a reasonable choice for a home server or NAS, though the lack of ECC memory support may be a limitation for some use cases.
What integrated graphics does the 225T have?
Intel Arc Xe-LPG Graphics with 16 Execution Units, running at a dynamic frequency up to 1800 MHz.
Is the Core Ultra 5 225T still in production?
Yes, it is listed as Active in Intel's current product lineup.