PC Build to Run Gemma 4 26B-A4B Locally (Q8_0)

作者： Jakub Rusinowski · 最后更新： 2026年7月10日

A complete parts list — GPU, motherboard, RAM and PSU — worked backward from Gemma 4 26B-A4B's VRAM requirement at Q8_0. Prices are 2026 street estimates and vary.

Requirements

VRAM required~28 GB at Q8_0
System RAM32 GB
Estimated speed~400 tok/s
Complete build (est.)$3,264
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GPU: NVIDIA GeForce RTX 5090

NVIDIA GeForce RTX 5090's 32 GB covers Gemma 4 26B-A4B at Q8_0 (~28 GB needed), with headroom.

在亚马逊查看价格 — NVIDIA GeForce RTX 5090 32GB

Motherboard: ASUS ProArt X670E-Creator WIFI

X670E (AM5) — pairs with the AMD Ryzen 9 7900X; DDR5, dual PCIe 5.0 x16 (x8/x8) for multi-GPU, 4 DIMM slots to 192 GB.

在亚马逊查看价格 — ASUS ProArt X670E-Creator WIFI

RAM: Corsair Vengeance 32GB (2x16GB) DDR5-6000 C30 (AMD EXPO)

32 GB DDR5-6000 (2x16GB) meets Gemma 4 26B-A4B's 32 GB recommended system RAM.

在亚马逊查看价格 — Corsair Vengeance 32GB (2x16GB) DDR5-6000 C30

PSU: Corsair RM1000e (ATX 3.1)

1000 W 80+ Gold covers NVIDIA GeForce RTX 5090 (575 W) + CPU 170 W with 30% headroom (~969 W required).

在亚马逊查看价格 — Corsair RM1000e (ATX 3.1)

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FAQ

What GPU do I need to run Gemma 4 26B-A4B at Q8_0?

NVIDIA GeForce RTX 5090's 32 GB covers Gemma 4 26B-A4B at Q8_0 (~28 GB needed), with headroom.

How much VRAM does Gemma 4 26B-A4B need at Q8_0?

About 28 GB of VRAM plus 32 GB of system RAM.

What power supply does a NVIDIA GeForce RTX 5090 build need?

1000 W 80+ Gold covers NVIDIA GeForce RTX 5090 (575 W) + CPU 170 W with 30% headroom (~969 W required).

How much does a Gemma 4 26B-A4B PC cost?

About $3,264 for a complete build (GPU, motherboard, RAM, PSU, CPU, case, SSD), at 2026 street-price estimates.

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