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Dynabook · Ultrabook

Dynabook Portege Z40L-N

Intel Iris Xe Graphics · Core i7-1265U · 16GB RAM · 14" FHD
$1,799
C+
54/100 overall
Dynabook Portege Z40L-N is a ultrabook laptop built around the Core i7-1265U and Intel Iris Xe Graphics, paired with 16GB RAM and a 14" FHD display. It weighs 2.3 lbs and is rated by the manufacturer for 15 hours of battery — independent reviews suggest ~10.5 hours of real-world use. For local AI workloads, 0 GB VRAM + 16 GB RAM means the system can runs ~8b llms locally. At $1,799, Laptop Index gives it an overall score of 54/100 (tier C+).

Specifications

BrandDynabook
CategoryUltrabook
GPUIntel Iris Xe Graphics
CPUCore i7-1265U
RAM16 GB
VRAM0 GB
Screen14" FHD
Weight2.3 lbs
Battery (claimed)15 hrs
Battery (realistic)~10.5 hrs
Price (USD)$1,799

Laptop Index scores

Overall tierC+ · 54/100
GPU score9/100
CPU score58/100
AI / LLM capability~8B params
Local AI verdictRuns ~8B LLMs locally
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Specs sourced from the manufacturer's product page and major-retailer listings.
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