Gigabyte Z890 AORUS TACHYON DUO X ICE

An 18+1+2 phase VRM using 110A SPS stages for VCore and 80A stages for VCCGT and VCCSA, backed by an 8-layer PCB with low-loss materials and premium chokes and capacitors. This is extreme-tier power delivery, well beyond what any current Core Ultra 200S Plus chip requires at stock, built specifically for pushing CPU and memory limits under extreme cooling.

Two DDR5 DIMM slots supporting CQDIMM and CUDIMM formats, reaching up to 10,400 MT/s overclocked, the highest figure across Gigabyte's current Z890 lineup for a DUO X configuration. D5 Bionic Corsa AI-assisted tuning helps extract this ceiling without requiring fully manual timing entry, though reaching the absolute limit still depends heavily on the specific memory kit's silicon quality.

Four M.2 slots including one PCIe 5.0 x4, plus full-length PCIe 5.0 x16 and x8 slots for graphics and expansion. What separates this board from a conventional flagship is its dedicated overclocking hardware: LN2 Mode for sub-zero cooling setups, Cold Reset and LIMP Mode for recovering from failed extreme-overclock boots, OC Trigger and OC Ignition switches, a BIOS switch for dual-firmware safety, voltage measurement points for direct multimeter readings, and separate PS/2 keyboard and mouse ports, a legacy connector competitive overclockers specifically prefer for its lower input latency during benchmark runs.

Thunderbolt 4 support alongside 5GbE LAN and Wi-Fi 7 rounds out a comprehensive connectivity package, though the real focus of this board's design budget clearly sits in the overclocking hardware and VRM rather than expanding connectivity beyond what competing flagship boards already offer.

Against the standard Z890 AORUS TACHYON ICE, this DUO X variant trades that board's 10-layer PCB and four conventional DIMM slots for an 8-layer PCB and the two-slot D5 DUO X memory design, reaching a higher rated memory speed (10,400 MT/s versus that board's specifications) at the cost of total slot flexibility. Against the Z890 AORUS ELITE DUO X, covered elsewhere on this site, this TACHYON variant adds the full extreme-overclocking hardware suite, LN2 mode, voltage points, dedicated OC switches, that the mainstream ELITE tier board doesn't include, at a real price and positioning difference between a mainstream CQDIMM board and a dedicated competitive-overclocking tool.