Can I Run GPT-OSS 20B on NVIDIA GeForce RTX 5060 Ti 8GB?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

作者： Jakub Rusinowski · 最后更新： 2026年8月15日

No. GPT-OSS 20B needs 10.6 GB at MXFP4 and the NVIDIA GeForce RTX 5060 Ti 8GB has only 8 GB. No quantization we publish closes a gap that size.

The numbers

Either step down to a smaller size in this family, or move to a NVIDIA GeForce RTX 5070 (12 GB), the cheapest card we track with enough VRAM.

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Cheapest card we track with enough VRAM for GPT-OSS 20B:

NVIDIA GeForce RTX 5070 12GB

12 GB VRAM · 250 W board power

2026年价格波动较大——请以当前商品页价格为准。

Won't fit — rent GPT-OSS 20B instead

GPT-OSS 20B needs ~11 GB but this GPU has 8 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:

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RunPod $0.34/hr

Vast.ai $0.35/hr · typical low · varies

Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.