Which is better for a dual-CPU build?

The Tyan. It has two Socket SP3 sockets and supports EPYC 7003, while the Gigabyte MZ31-AR0 is a single-socket board.

Which holds more memory?

The Tyan, rated to 4 TB of DDR4-3200 across 16 slots. The Gigabyte listing states 64 GB of RDIMM, though it also has 16 slots.

Is the Gigabyte worth the extra?

Only the Gigabyte price was given: $1,160.36 at Orange Hardwares as of November 7, 2026. With no Tyan price to compare, judge it on features — PCIe 4.0 and dual 10GbE are the Gigabyte's edge.

Which has faster storage and expansion?

The Gigabyte has PCIe 4.0. The Tyan offers more ports — 2 SATA, 2 NVMe and SAS — plus four RJ-45 network ports.

Can either run the top EPYC chips?

The Tyan supports CPUs up to 280 W. The Gigabyte lists a 200 W CPU TDP limit, so the highest-power EPYC parts are out.

Which fits a standard case?

Neither is standard ATX. Both are Extended ATX, so you need an EATX-capable chassis.

Tyan Tomcat CX S8253 vs Gigabyte MZ31-AR0

Buy the Tyan Tomcat CX S8253 if you need dual EPYC sockets and large memory — it supports up to 4 TB of DDR4-3200 across 16 slots and two CPUs. Buy the Gigabyte MZ31-AR0 if you want a single-socket EPYC 7002 board with PCIe 4.0 and 10GbE on board. The Gigabyte is priced at $1,160.36 at Orange Hardwares as of November 7, 2026; no current price was given for the Tyan.

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