VALVE / HW

Steam Deck Hardware Lifecycle & Sequel Horizon Simulator

Grounded in Verge reporting: "Don't expect a Steam Deck sequel soon" — Valve requires a generational silicon efficiency leap before shipping Deck 2.
Silicon & System Parameters
N3E (3nm TSMC)
Lithography determines thermal density, frequency headroom, and wafer pricing.
15 W
Sustained power budget for CPU+GPU die. Handheld ergonomics cap heat at 15-20W.
4.0 hrs
Continuous load hours determine required Wh capacity and chassis weight.
128 GB/s
LPDDR5X/LPDDR6 bus width. Memory starvation is the primary bottleneck for APU graphics.
Adds hardware intersection logic, raising silicon area and die cost.
Feasibility Telemetry & Horizon LIVE SIMULATION
Horizon 2-3 Years
Meets Valve's criterion of significant generational uplift without blowing thermal budget, but relies on mature N3E wafer supply contracts.
Performance Uplift
145%
vs Steam Deck LCD
Estimated COGS
$449
Bill of Materials
Battery & Chassis
669 g
60 Wh Pack
Thermal Headroom
18 W
Cooler Max Limit
Architectural Specification Brief

      
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