Hardware Spec Index

Kestrix LX-8421 XT 18" Gaming Laptop (12GB GDDR7)

Laptops · Kestrix · SKU LX8421-XT · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index15,914 (Laptops scale)
Category rank#15,636
Street price$1,429
Power180 W (charger)
Performance per dollar11.14
Released2025

Specifications

BrandKestrix
ModelKestrix LX-8421 XT
ClassGaming
Processor16-core mobile CPU, up to 5.0 GHz
GraphicsDiscrete, 12GB GDDR7, 140 W
NPU13 TOPS
Memory32 GB DDR5-5600 SO-DIMM (2 slots, upgradable)
Storage1 TB PCIe 4.0 NVMe (M.2 2280)
Display18" 2560×1600 240 Hz Mini-LED
Battery80 Wh
Weight2.64 kg
Ports2× Thunderbolt 4 / USB4 (40Gbps), 1× USB-A 10Gbps, HDMI 2.1
WirelessWi-Fi 7 (2×2, 320 MHz) + Bluetooth 5.4
Charger180 W barrel

Related guides

DDR5 Memory ExplainedWi-Fi 7 (802.11be) ExplainedUSB4 ExplainedGDDR7 Memory ExplainedNPUs and AI PCsThunderbolt 5 Explained

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Cite this page: Hardware Spec Index, “Kestrix LX-8421 XT 18" Gaming Laptop (12GB GDDR7)”, https://vextor7.com/item/91494724 (accessed 2026-10-23).