Moyan Technology

Guides

AI datacenter hardware, explained

Buying guides and straight comparisons for the parts that build AI clusters — written from live market data.

19in vs 21in ORV3 Racks

Why AI density pushes racks from 19-inch EIA-310 to 21-inch Open Rack, plus load, depth and cooling.

AI Rack Power & PDU Guide

Size power for a 100kW+ AI rack: three-phase PDUs, titanium CRPS, OCP power shelves and redundancy.

EPYC vs Xeon for AI

Which host CPU feeds your GPUs best: AMD EPYC or Intel Xeon, compared on cores, memory, PCIe and price.

Direct-to-Chip vs Immersion

DTC cold plates and CDUs vs immersion for AI racks — density, PUE, retrofit, cost and lead times.

E1.S vs E3.S vs U.2 EDSFF

U.2/U.3 vs E1.S, E3.S and E1.L — density, thermals and the right slot for AI servers.

H100 vs H200 vs B200

How NVIDIA H100, H200 and B200 differ on memory, bandwidth, power and cost, and which fits your workload.

Server Rail Buying Guide

Pick heavy-duty rails for liquid-cooled GPU nodes: load basis, travel, tool-less mounting and CMA.

InfiniBand vs RoCE vs Ethernet

How InfiniBand and RoCEv2 Ethernet compare for AI training fabrics — latency, cost, and supply.

NVIDIA vs AMD MI300X

How AMD Instinct MI300X and MI325X stack up against NVIDIA's H100, H200 and B200 on memory and cost.

RDIMM vs LRDIMM vs MRDIMM

How DDR5 RDIMM, 3DS LRDIMM and MRDIMM 8800 differ — and which to spec for AI servers.

TLC vs QLC Enterprise SSD

TLC for write-heavy checkpoints, QLC for read-heavy datasets — how to tier NVMe for AI.

High-bandwidth memory explained: HBM3E vs HBM4, and why you buy it bundled on the accelerator.