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Lenovo ThinkStation P520 Workstation vs Dell Precision 3490 Mobile Workstation AI PC… — Head-to-Head (2026)

Our verdict first, then the specs side by side.

Our verdict

Dell Precision 3490 Mobile Workstation AI PC… is our pick.

The Dell Precision 3490 is the better workstation for almost everyone in 2026, because its 16-core/22-thread Core Ultra 7 155H, 64GB of DDR5-4800, 2TB SSD and built-in NPU bury the Lenovo P520's 4-core/8-thread Xeon W-2123 and 9-year-old Quadro M2000 on every modern workload except one: GPU-accelerated CUDA software, where the Lenovo's discrete card still matters. (No published 2026 benchmarks for either configuration — comparison based on spec sheets, core counts, and architecture generation.)

SpecPicks editorial verdict, written June 20, 2026. Prices move, so check the current price on each listing before you buy.

Lenovo ThinkStation P520 Workstation, Intel Xeon W-2123 3.60GHz 4-Core, 512GB NVMe M.2 SSD, Quadro M2000 4GB (4X Display Ports), Windows 11 Pro (128GB DDR4) (Renewed)

Lenovo ThinkStation P520 Workstation, Intel Xeon W-2123 3.60GHz 4-Core, 512GB NVMe M.2 SSD, Quadro M2000 4GB (4X Display Ports), Windows 11 Pro (128GB DDR4) (Renewed)

$950.00
🛒 See live eBay price
vs
Dell Precision 3490 Mobile Workstation AI PC Laptop (14" FHD, Intel 16-Core Ultra 7 155H (> i9-12900H), 64GB DDR5 RAM, 2TB SSD) Business, Engineer, IST HUB, Thunderbolt 4, 1080p Webcam, Win 11 Pro

Dell Precision 3490 Mobile Workstation AI PC Laptop (14" FHD, Intel 16-Core Ultra 7 155H (> i9-12900H), 64GB DDR5 RAM, 2TB SSD) Business, Engineer, IST HUB, Thunderbolt 4, 1080p Webcam, Win 11 Pro

$1999.99
🛒 Buy on Amazon — $1,999.99

*Price sourced from Amazon.com. Last updated 2026-11-07. Price and availability subject to change.

Spec-by-spec

SpecLenovo ThinkStation P520 Workstation…Dell Precision 3490 Mobile Workstation…
BrandLenovoDell
Color128GB DDR4Grey
RAM TypeDDR4 SDRAMDDR5 RAM
CPU ModelXeonCore i7 Family
Model NameThinkStationDell Mobile Workstation 3490
Model Year20212025
Resolution3840 x 21601080p
Display TypeLCDLCD
Memory Speed3.6 GHz4800 MHz
Model NumberP520Precision 3490
Video OutputDisplayPortHDMI, Thunderbolt 4
Built-In MediaComputer and Power Cord100W AC Adapter with Power Cord, Dell Mobile Workstation 3490, USB HUB by IST Computers ®, User Manual
Keyboard LayoutQWERTYQWERTY
Processor BrandIntelIntel

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