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Qualcomm technical article 013

Snapdragon X2 Plus

How the two 3 nm Windows-PC processors combine third-generation Oryon CPU cores, an integrated Adreno GPU, an 80-TOPS Hexagon NPU and a 152 GB/s memory system.

01

What it is

Snapdragon X2 Plus is Qualcomm’s second-generation mid-range Windows-on-Arm PC platform. It is a complete system-on-chip: CPU, graphics, AI acceleration, memory controller, display, video, camera, security and high-speed I/O are integrated around one shared LPDDR5x memory pool.

The family has two parts. X2P-64-100 combines six Prime and four Performance Oryon cores; X2P-42-100 uses six Prime cores only. Both retain the same 80-TOPS NPU, 128-bit memory interface and maximum memory capacity, while CPU cache and GPU frequency differ.

Process3 nmIntegrated PC SoC
CPU6 or 10 coresThird-generation Oryon
NPU80 TOPS INT8Qualcomm Hexagon
Memory152 GB/sUp to 128 GB LPDDR5x
02

Two processor variants

SpecificationX2P-64-100X2P-42-100
CPU configuration6 Prime + 4 Performance cores6 Prime cores
Maximum multithread frequencyPrime: 4.0 GHz; Performance: 3.4 GHzPrime: 4.0 GHz
Single-core boost4.04 GHz4.04 GHz
Total cache34 MB22 MB
Adreno GPUX2-45 at 1.7 GHzX2-45 at 0.9 GHz
Hexagon NPU80 TOPS INT880 TOPS INT8
MemoryUp to 128 GB; 152 GB/sUp to 128 GB; 152 GB/s
03

SoC architecture

Snapdragon X2 Plus system-on-chip blocksOryon CPU, Adreno GPU, Hexagon NPU and media engines share an LPDDR5x memory system and connect to storage, displays, cameras and wireless modules.SNAPDRAGON X2 PLUS · 3 NMOryon CPU6 or 10 coresARM64 compatibleAdreno GPUX2-45 graphicsDX 12.2 · Vulkan 1.4Hexagon NPU80 TOPS INT8On-device AIMedia + I/OVPU · ISP · DPUPCIe · USB4128-BIT LPDDR5x · 152 GB/s SHARED MEMORYNVMe / UFS · display · camera · Wi-Fi 7 · optional 5G
All major compute engines access the same physical memory pool; software still chooses which engine executes each operation.
04

How work moves through the chip

  1. Windows schedules CPU work.Oryon cores run the operating system, native ARM64 applications and control-heavy code.
  2. Graphics and parallel kernels move to Adreno.The GPU renders displays and accelerates supported DirectX, Vulkan or OpenCL workloads.
  3. Supported AI graphs target Hexagon.Runtimes compile compatible operators for the 80-TOPS NPU; unsupported or unsuitable operators remain on CPU or GPU.
  4. Engines share system memory.CPU, GPU and NPU read the same LPDDR5x pool, reducing explicit copies between separate memory devices.
  5. Fixed-function blocks handle media.The VPU encodes and decodes video, the ISP processes camera data and the DPU drives internal and external displays.
  6. External controllers use dedicated links.PCIe, USB4, storage and optional wireless modules connect the SoC to the rest of the laptop.
05

Memory and AI data movement

Both parts use a 128-bit LPDDR5x interface at 9,523 MT/s, producing a published peak of 152 GB/s and supporting up to 128 GB. The capacity is an OEM design maximum; individual laptops may install less.

For local models, unified physical memory lets weights and intermediate tensors remain accessible to more than one compute engine. This avoids a discrete GPU’s separate VRAM boundary, but does not make transfers free: cache behaviour, memory contention, operator layout and runtime support still determine effective throughput.

ResourcePublished valuePractical role
LPDDR5x transfer rate9,523 MT/sMoves data on each memory-interface pin.
Bus width128 bitDefines the aggregate path between SoC and memory packages.
Peak bandwidth152 GB/sShared ceiling for CPU, GPU, NPU and other clients.
Maximum capacity128 GBUpper platform support, subject to laptop design.
CPU cache34 MB or 22 MB totalKeeps frequently used instructions and data off LPDDR5x.
06

Media, display and I/O

SubsystemPublished capabilityFunction
Internal displayeDP 1.5; up to 4K at 144 HzDrives the laptop panel.
External displayDisplayPort 2.1; up to three 4K 144 Hz or 5K 60 Hz displaysFeeds external monitors; implementation varies by OEM.
Video decodeAV1, HEVC and AVC up to 8K 60 fpsFixed-function playback without using CPU cores for the full codec.
Video encodeHEVC/AVC 8K 30 fps; AV1 8K 15 fps or 4K 60 fpsRecording, conferencing and content export.
CameraDual 18-bit Spectra ISPs; up to 36 MP; 4K 30 fps captureProcesses sensor streams and always-sensing functions.
PCIe8 Gen 5 lanes + 4 Gen 4 lanesNVMe and other high-speed controllers.
USBThree USB-C interfaces; USB4 at 40 Gb/sData, display and peripheral connectivity.
07

Security, management and wireless

ComponentRoleQualification
Qualcomm SPU + Microsoft PlutonHardware-backed identity, secrets and chip-to-cloud security functions.Actual policy depends on firmware, Windows and OEM configuration.
Snapdragon GuardianOptional out-of-band management over cellular or Wi-Fi.Requires supported device hardware and service configuration.
FastConnect 7800Optional Wi-Fi 7 across 2.4, 5 and 6 GHz; Bluetooth 5.4.Attached through M.2 PCIe 3.0.
Snapdragon X75Optional 5G modem-RF system; up to 10 Gb/s down and 3.5 Gb/s up.Peak modem figures are not typical network speed.
Sensing HubDual micro-NPUs for low-power contextual sensing.Separate from the main 80-TOPS Hexagon NPU rating.
08

Terms

SoC
System-on-chip integrating multiple compute and I/O blocks.
Oryon
Qualcomm’s custom ARM64-compatible CPU architecture.
TOPS
Trillion operations per second under a stated numeric format.
NPU
Processor specialised for neural-network operations.
Unified memory
One physical memory pool visible to multiple compute engines.
ISP
Image signal processor for camera data.
VPU
Fixed-function video processing unit.
DPU
Display processing unit in this PC context.
09

Limits of the evidence

  • 80 TOPS is the main NPU’s peak INT8 rating, not end-to-end application performance.
  • Qualcomm does not publish CPU IPC, GPU shader count, package power or sustained clocks in the cited brief.
  • Memory, display, modem and port figures are platform maxima; an OEM may implement fewer resources.
  • The 4.04 GHz boost entry in the launch brief is a single-core condition, not an all-core frequency.
  • Software compatibility and NPU offload depend on Windows, drivers, runtimes and application support.
  • Battery-life and comparative-performance claims are excluded.
  • Price and promotional material are excluded.
10

Sources

  1. Snapdragon X2 Plus product briefComplete two-part specification table, compute blocks, memory, media and I/O.
  2. Snapdragon X2 Plus product pageCurrent part numbers and Qualcomm comparison table.
  3. Snapdragon X2 Plus announcementLaunch scope, two configurations and device timing.
  4. Qualcomm CES 2026 press kitLaunch assets and original product-brief provenance.