Kestrix LX-4421 Ultra 18" Creator Laptop (8GB GDDR7)
Laptops · Kestrix · SKU LX4421-ULTRA · Released 2025 · Updated 2026-10-22
Key facts
| Benchmark index | 11,909 (Laptops scale) |
|---|---|
| Category rank | #49,506 |
| Street price | $1,019 |
| Power | 280 W (charger) |
| Performance per dollar | 11.69 |
| Released | 2025 |
Specifications
| Brand | Kestrix |
|---|---|
| Model | Kestrix LX-4421 Ultra |
| Class | Creator |
| Processor | 8-core mobile CPU, up to 4.9 GHz |
| Graphics | Discrete, 8GB GDDR7, 115 W |
| NPU | 13 TOPS |
| Memory | 32 GB DDR5-5600 SO-DIMM (2 slots, upgradable) |
| Storage | 1 TB PCIe 4.0 NVMe (M.2 2280) |
| Display | 18" 2560×1600 240 Hz Mini-LED |
| Battery | 90 Wh |
| Weight | 2.48 kg |
| Ports | 2× Thunderbolt 4 / USB4 (40Gbps), 1× USB-A 10Gbps, HDMI 2.1 |
| Wireless | Wi-Fi 7 (2×2, 320 MHz) + Bluetooth 5.4 |
| Charger | 280 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-4421 Ultra 18" Creator Laptop (8GB GDDR7)”, https://vextor7.com/item/7656911 (accessed 2026-10-22).