The Definitive Guide toAI Data Centers
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Optical transceivers' share of networking cost (~60%) and networking power (~45%) in SemiAnalysis's modeled GB300 NVL72 cluster with a three-layer network at NVIDIA LinkX transceiver pricing — the quantified version of 'the optics are the budget'

~60% / ~45%derived

Value kindderived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method.
CaveatA configuration-specific modeled estimate (GB300 NVL72, 3-layer network, first-party LinkX optics), not a universal ratio; merchant-optics builds sit lower on cost share.
As of2026-01
SourceSemiAnalysis
Reviewchecking…review by 2026-09-03 · fast cadence
Recorded changeslast 2026-08-24 · 2 revisions tracked
Claim idoptics-share-networking-cost-power

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