ASUS TUF Z790 Motherboard Overview

ASUS TUF Z790 Motherboard Overview | Generated by AI

Home 2026.07

Question: Intro to ASUS TUF GAMING Z790-PLUS WIFI motherboard

ASUS TUF GAMING Z790-PLUS WIFI is a high-end consumer ATX motherboard based on Intel’s Z790 chipset, mainly designed for 12th/13th/14th generation Intel Core CPUs (Alder Lake / Raptor Lake / Raptor Lake Refresh).

Key specs

Feature	Details
CPU socket	LGA1700
CPU support	Intel 12th / 13th / 14th Gen Core
Chipset	Intel Z790
Form factor	ATX
Memory	4 × DDR5 DIMM
Memory capacity	Up to 192GB DDR5 (with 48GB modules)
PCIe GPU slot	PCIe 5.0 x16
M.2 storage	Multiple M.2 NVMe slots (PCIe 4.0)
Network	2.5Gb Ethernet
Wireless	WiFi 6 + Bluetooth
VRM	Strong power delivery with heatsinks
BIOS	UEFI, CPU upgrade support

Why Z790 matters

Intel motherboard tiers:

H610
  |
B660/B760
  |
Z690/Z790  <--- enthusiast

The important difference:

B760:
- no CPU overclocking
- fewer PCIe lanes
- cheaper
Z790:
- CPU multiplier overclocking
- stronger VRM
- more expansion
- better for i7/i9

For a:

i5-13600K
i7-13700K
i9-13900K
i9-14900K

Z790 makes sense.

VRM / power

The “供电稳” part means the motherboard has a stronger VRM design.

For example:

PSU 12V
 |
VRM
 |
CPU voltage ~1V
 |
CPU cores

A 13900K can pull:

normal gaming: ~100-150W
heavy all-core: 250W+

A weak motherboard may throttle. A TUF Z790 can handle these CPUs much better.

For your RTX 3090 / dual GPU thinking

This board is interesting, but note:

PCIe layout

Usually:

CPU PCIe lanes:

GPU slot 1:
PCIe 5.0 x16

Chipset:
PCIe x4 lanes
 |
M.2
 |
other PCIe slots

A second GPU usually runs:

GPU1: PCIe 5.0 x16
GPU2: PCIe 4.0 x4

because consumer Intel CPUs only have:

CPU:
16 PCIe lanes GPU
4 PCIe lanes NVMe

Total:
20 PCIe lanes

Not like server platforms:

Threadripper:
64+ PCIe lanes

EPYC:
128+ lanes

So for:

single RTX 3090 ✅
RTX 4090 + NVMe ✅
RTX 3090 + another GPU ⚠️ limited

Compared with your MSI MAG B760M Mortar WiFi

Your previous board:

MSI MAG B760M Mortar WiFi

is actually already a very good board.

Difference:

	MSI B760M Mortar	ASUS TUF Z790
Size	mATX	ATX
DDR5	yes	yes
CPU OC	no	yes
PCIe lanes	fewer	more
Expansion	medium	better
VRM	good	stronger
Dual GPU	limited	slightly better

For your use case:

GPT training
RTX 3090
local LLM inference
PyTorch

the motherboard itself is not the bottleneck.

The big constraints are:

VRAM
PCIe bandwidth
power supply
cooling

Used-market value

A used TUF Z790-PLUS WIFI is a pretty reasonable choice because:

DDR5 platform
supports 13900K/14900K
ATX gives more room
good resale

But I would not pay a huge premium over B760.

For AI workstation:

B760 + RTX3090
        |
        |
        v
same model training speed

Z790 + RTX3090

The GPU does the work.

For your case (i9-13900KF + RTX 4070 currently, considering RTX 3090/dual GPU), the main reason to upgrade to Z790 is not performance; it is physical expansion space and PCIe layout. If you want 2×3090, even Z790 is not ideal — you start looking at Threadripper / workstation platforms.

Back Donate