Quick Verdict
The Core 3 N355 is a sensible step up over the Alder Lake-N N305 for always-on, thermally constrained systems: modestly higher clocks, LPDDR5 support, and Intel 7 branding, but still limited by single-channel memory, PCIe 3.0, and no P-core performance.
Overview
Launch
2025
Status
LaunchedGeneration
Core 3 (N-series), Twin Lake refresh of Alder Lake-N
Market
Mobile / Edge / Embedded
The Intel Core 3 N355 is an 8-core, 8-thread value SoC for thin-and-light laptops, mini PCs, and edge devices, built on Intel 7 with up to 3.9 GHz burst and 32 EU integrated graphics.
Intel’s Core 3 N355 updates the 8-core E-core formula from Alder Lake-N with a small clock uplift (up to 3.9 GHz) and adds LPDDR5-4800 support while retaining single-channel memory, 9 PCIe 3.0 lanes, and 32 EU Xe graphics.
It targets mini PCs, NAS boxes, and embedded edge devices where power budgets are tight and workloads are lightly threaded or IO-bound.
Specifications
Performance
Handles web, office, and light multitasking well; single-channel memory constrains memory-sensitive workloads.
Adequate for a couple of light VMs or containers, but limited RAM ceiling (16 GB) and single-channel bandwidth.
Not designed for gaming; playable only at low resolutions and settings in older titles due to the 32 EU iGPU and single-channel memory.
Strong efficiency at 9–15 W for always-on appliances; Intel 7 is not class-leading in efficiency versus newer nodes, but power is low.
- •32 EU Xe iGPU is capable of video decode and desktop compositing, but too weak for modern AAA games.
- •Single-channel memory narrows effective bandwidth.
- •Best suited for casual, older, or esports titles at 720p/low.
- •No dedicated NPU; CPU-based inference only via AVX2.
- •GNA 3.0 assists some low-power audio/voice tasks.
- •Unsuitable for heavy local LLMs or large vision models.
Architecture
Intel 7 (10 nm-class FinFET)
Process Node
Twin Lake
Codename
8C / 8T
Core Config
6 MB
L3 Cache
15 W
TDP
Architecture Overview
Twin Lake is a refresh of the Alder Lake-N E-core-only SoC family, rebranded under Core 3 and 'Intel Processor' labels. It reuses Gracemont efficient cores and the Gen12 LP iGPU with minor frequency bumps and updated branding.
CPU Design
Eight E-cores without Hyper-Threading; each core has private L1/L2 and shares a 6 MB L3. The design trades peak per-thread speed for higher thread count at low power.
Memory Subsystem
Single-channel controller supporting DDR4-3200, DDR5-4800, and LPDDR5-4800, with a 16 GB maximum addressable memory size.
PCIe & I/O
Nine PCIe 3.0 lanes from the SoC/PCH, typically used for one NVMe SSD and additional I/O controllers; no direct CPU PCIe 4.0+ lanes.
Overclocking
Multiplier locked; only OEM-configurable power limits and cTDP.
- Max turbo increased from 3.8 GHz to 3.9 GHz.
- Added LPDDR5-4800 support alongside DDR4/DDR5.
- Branded as Core 3 with updated Intel 7 labeling and embedded option for longer lifecycle.
- iGPU graphics burst frequency raised to 1.35 GHz from 1.25 GHz.
Key Highlights
- Eight E-cores provide solid multi-thread throughput at low power.
- Configurable 9 W cTDP enables truly fanless designs.
- LPDDR5 support improves compatibility for compact, soldered-down designs.
- 32 EU iGPU with Quick Sync handles modern video codecs including AV1.
- Embedded lifecycle support makes it attractive for OEMs needing long-term availability.
- Single-channel memory caps real-world bandwidth.
- No P-cores means lower per-thread performance than P+E designs.
- PCIe 3.0 x9 limits NVMe speeds and high-speed I/O expansion.
- Multiplier locked; no enthusiast overclocking.
- 16 GB max memory may be restrictive for heavier workloads or future-proofing.
History
The Core 3 N355 continues the E-core-only, low-power legacy Intel established with Alder Lake-N parts like the Core i3-N305. Rather than a new microarchitecture, Twin Lake reuses that proven Gracemont-based SoC with modest frequency and memory updates, and it is rebranded under the Core 3 label for 2025. This approach gave OEMs an easy drop-in upgrade path for mini PCs, NAS appliances, and embedded platforms while Intel reserved its latest architectures for higher-tier SKUs.
Announced at CES 2025 as part of the N-series refresh, the N355’s appeal lies in flexibility: a 9 W cTDP mode for fanless appliances and a 35 W PL2 for short bursts, coupled with LPDDR5 support to better serve compact, soldered-down designs. In practice, the N355 has found a home in home-lab NAS devices, industrial Pico-ITX boards, and value mini PCs, extending the practical life of the Gracemont E-core design into the mid-2020s.
Improvements over Previous Generation
- Max turbo increased from 3.8 GHz to 3.9 GHz.
- Added LPDDR5-4800 support alongside DDR4/DDR5.
- Branded as Core 3 with updated Intel 7 labeling and embedded option for longer lifecycle.
- iGPU graphics burst frequency raised to 1.35 GHz from 1.25 GHz.
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Buying or specifying a fanless mini PC, home NAS, or embedded appliance where 15 W (or lower) is a hard constraint and workloads are light.
Avoid if…
- You need sustained high single-thread performance.
- Your workload is sensitive to memory bandwidth (e.g., gaming, heavy compilation).
- You plan to run many VMs or memory-hungry services beyond 16 GB.
Use Cases
Interesting Facts
Twin Lake reuses the Alder Lake-N die and Gracemont cores with minor updates rather than a new architecture, similar to how Intel refreshed older silicon for new branding.
The N355’s 9 W cTDP mode enables fanless NAS and router appliances, while 35 W PL2 allows brief bursts for short workloads.
Intel lists it under 'Products formerly Twin Lake' on ARK, indicating the codename has been retired in marketing.
Despite the 'Core 3' brand, the SoC lacks P-cores and Hyper-Threading, emphasizing efficiency over peak performance.
The 32 EU Xe iGPU is identical in EU count to Alder Lake-N but runs 100 MHz faster at 1.35 GHz.
Intel’s own Edge/Embedded datasheet specifies TDP (PL1) at 15 W with cTDP 9 W and PL2 at 35 W, giving OEMs wide design flexibility.
It supports Intel’s IPU 6.0 for camera/vision pipelines in edge devices.
GNA 3.0 is included for low-power audio/voice processing tasks.
The part number SRPNT appears in Intel’s ordering information, confirming production status and packaging.
Products like QNAP’s QuNAS series and various mini-ITX NAS boards adopt N355 specifically for home and small-business storage appliances.
People Also Ask
Is Intel Core 3 N355 good for gaming?
No. It’s designed for light everyday tasks and display/media duties. The 32 EU iGPU and single-channel memory limit gaming to older or esports titles at low settings.
What is the difference between N355 and N305?
N355 is the Twin Lake refresh of N305 (Alder Lake-N). Key differences: N355 supports LPDDR5-4800, raises max turbo to 3.9 GHz and iGPU burst to 1.35 GHz, and is branded Core 3 with embedded lifecycle support.
Does Core 3 N355 support dual-channel memory?
No. It has a single-channel memory controller for DDR4/DDR5/LPDDR5 with a 16 GB maximum.
Can the N355 run Windows 11 well?
Yes, for everyday tasks like browsing, office apps, and media playback. It meets Windows 11 requirements and is adequate when paired with at least 8 GB RAM and an NVMe SSD.
What is the TDP of Intel Core 3 N355?
Processor Base Power (PL1) is 15 W, Minimum Assured Power (cTDP) is 9 W, and Maximum Turbo Power (PL2) is 35 W according to Intel’s datasheet.
Does N355 have an NPU for AI?
No dedicated NPU. AI inference relies on CPU AVX2 and GNA 3.0 for specific audio/voice tasks; it is not marketed as an AI PC SoC.
Is the N355 overclockable?
No. The multiplier is locked; only OEMs can adjust power limits and cTDP configurations.
What socket does N355 use?
FCBGA1264 (35 mm × 24 mm); it is soldered onto the motherboard and not user-replaceable.
How many PCIe lanes does the N355 provide?
Up to 9 PCIe 3.0 lanes from the SoC/PCH, typically allocated to one NVMe SSD and additional I/O controllers.
Is Core 3 N355 good for a home NAS?
Yes. Its 8 E-cores, 15 W base power, and support for multiple SATA/NVMe configurations via PCH make it a common choice for home and SOHO NAS appliances.
Frequently Asked Questions
What is the integrated graphics on the Intel Core 3 N355?
Intel Graphics with 32 Execution Units (Gen12 LP architecture), up to 1.35 GHz dynamic frequency, supporting 4K@60 on HDMI and DP.
Does the N355 support ECC memory?
No. Intel’s official specifications list ECC as not supported.
What is the maximum supported memory size?
16 GB, dependent on memory type (DDR4/DDR5/LPDDR5), as stated by Intel ARK.
What manufacturing process is the N355 built on?
Intel 7 (10 nm-class). Intel ARK explicitly lists 'Intel 7' as the lithography.
What is the launch date of the Core 3 N355?
Intel ARK lists Launch Date as Q1’25; Intel announced availability of Twin Lake N-series at CES 2025 starting Jan. 6, 2025.
Does the N355 support AVX-512?
No. Intel’s ARK lists instruction extensions up to AVX2; AVX-512 is not mentioned and is not supported.
What security features does the N355 include?
It supports Intel AES-NI, TXT, Boot Guard, OS Guard, CET, VT-x, VT-d with EPT, and MBEC, among others.
Can the N355 output to multiple monitors?
Yes. It supports up to three displays via eDP 1.4b, DP 1.4, HDMI 2.1, and MIPI-DSI 1.3.
Is the N355 suitable for a fanless mini PC?
Yes. With a 9 W cTDP option and TJmax of 105°C, it is widely used in fanless or low-noise mini PCs, NAS boxes, and embedded systems.
Does the N355 support Thunderbolt or USB4?
Intel’s ARK page does not list Thunderbolt or USB4; these are unlikely on this N-series part and depend on the platform design.