Intel Core Ultra 7 165UL socket: LGA 1851
The Intel Core Ultra 7 165UL uses LGA 1851, the LGA socket for Meteor Lake-PS edge processors with DDR5-5600 and 20 PCIe Gen4 lanes. The 12-core chip at 15 W is the fastest UL edge option with vendor BIOS support.
- Socket
- LGA 1851
- Launched
- April 2024
- Cores and threads
- 12 and 14
- Base power
- 15 W
- Codename
- Meteor Lake-PS
- Segment
- Embedded
- Family
- Intel Core Ultra 7
- Clocks
- 1.7 / 4.9 GHz
Intel Core Ultra 7 165UL specifications
| Cores | 12 (2 Performance-cores plus 8 Efficient-cores plus 2 low-power E-cores) |
|---|---|
| Threads | 14 |
| Core architecture | Redwood Cove P-cores and Crestmont E-cores |
| Clocks | 1.7 GHz base, up to 4.9 GHz boost |
| Cache | 12 MB Intel Smart Cache (L3) |
| Processor base power (TDP) | 15 W |
| Manufacturing process | Intel 4 compute tile with Foveros packaging |
| Memory support | DDR5-5600, 2 channels, up to 96 GB |
| PCI Express | PCIe 4.0 x20 |
| Integrated graphics | Intel Graphics with Arc-class EUs |
| NPU | Intel AI Boost |
| Multiplier | Locked |
| Package | FCLGA1851 (45.0 by 37.5 mm) |
Motherboard compatibility
Intel Core Ultra 7 165UL needs a motherboard with a LGA 1851 socket. Chipset by chipset data for this codename is not recorded yet. See the LGA 1851 chipset list and the board maker's CPU support list.
LGA 1851 at a glance
| Type | LGA, 1,851 contacts |
|---|---|
| Package size | 45.0 × 37.5 mm |
| Introduced | October 2024 |
| Memory | DDR5 only |
| Cooler mounting holes | 78 × 78 mm |
What the Core Ultra 7 165UL is
The Core Ultra 7 165UL is a 12-core and 14-thread edge processor that Intel launched in the second quarter of 2024 as the top 15 W PS SKU. Two Performance-cores with 4 threads plus 8 Efficient-cores and 2 low-power E-cores run at 1.7 GHz base and up to 4.9 GHz boost. Cache is 12 MB of Smart Cache. The 15 W base with 0.1 GHz more turbo than the 155UL gives the snappiest sealed-box response in the PS family.
Edge inference and UI share the same low power budget. The AI Boost NPU handles transcription and detection while Arc-class graphics drive up to four displays for kiosks and walls. Shared DDR5 keeps board cost down, since no discrete VRAM is needed for the target loads.
Premium fanless gateways and medical carts fit here. The 4.9 GHz peak shortens interactive tasks over 5-series UL parts. Buyers with sustained all-core vision that exceeds 15 W should choose HL 45 W such as the Intel Core Ultra 7 165HL, where cooling and power delivery scale with throughput.
Socket and motherboard compatibility
The 165UL fits LGA 1851 PS low-power boards with 12 W to 28 W assured range. Retail desktop 800 series BIOS support does not include PS IDs, so industrial lists are the source of truth. The neutral compatibility sentence reflects that split.
Compact PS boards pair the top UL with DDR5 SODIMM, NVMe and multi-LAN for premium gateways. Heatsink fins for fanless use are validated per chassis. BIOS must list the 165UL before installation.
UL shoppers compare the two 7-series UL parts on 0.1 GHz turbo alone. The 165UL leads the 155UL by a margin visible only in bursts. The How to find your CPU socket type guide helps confirm PS board identity from silkscreen and labels.
Memory, PCIe and cooling
DDR5-5600 up to 96 GB in two channels via SODIMM is shared across CPU, GPU and NPU. Vision frame buffers plus model weights should be budgeted together. Fanless builds favor 32 GB over 64 GB for thermal reasons unless the workload needs capacity.
PCIe Gen4 x20 supports NVMe, networking and capture in small boards. Lane sharing between M.2 and x16 slots is fixed per design, so dual high-bandwidth add-ons need manual validation.
Cooling is 15 W fanless-capable with validated fin stacks. No boxed cooler ships with tray edge parts. Warm-aisle installs should keep inlet air within the board rating to hold 4.9 GHz bursts.
Upgrade paths
LGA allows a same-board step from slower UL parts to this top UL where listed. SODIMM and NVMe can also expand. Target microcode must be present in the board BIOS.
The performance leap is to HL 45 W boards with stronger VR and airflow. A working 165UL serves premium fanless roles for years. Desktop Arrow Lake on LGA 1851 is a different class despite the socket name.
Frequently asked questions
What socket does the Core Ultra 7 165UL use?
It uses LGA 1851 PS edge packaging for 15 W boards. Vendor lists decide support.
How fast is the Core Ultra 7 165UL?
Twelve cores and 14 threads at 1.7 GHz base and up to 4.9 GHz boost, with 12 MB of cache at 15 W.
What graphics does the 165UL include?
Intel Graphics with Arc-class units plus AI Boost NPU for kiosk and gateway inference.
What cooling does the 165UL need?
Fanless-capable 15 W with validated fins. HL 45 W parts need active airflow instead.
Sources and verification
- Intel Core Ultra processors Series 1 ARK list 165UL 12 cores 4.9GHz (Intel ARK)
- Intel Core Ultra Meteor Lake PS LGA1851 and Raptor Lake PS LGA1700 edge CPUs (Wccftech)
- LGA1851 Mini-ITX Meteor Lake-PS board DDR5 specification (Contec)
Facts last checked against these sources on . Page last edited on .