Skip to content
HQ
HardwareHQ
GPUsModelsCloud Pricing

❌ — B300 Can't Run Llama 3.1 405B

The B300 only has 144GB VRAM. Llama 3.1 405B needs ~246.5GB. Time to rent or upgrade.

❌ Not enough VRAM

Need more VRAM?

Rent cloud GPUs with 246.5GB+ VRAM to run Llama 3.1 405B, or upgrade hardware.

Finding cloud alternatives...

Upgrade hardware or rent cloud

This GPU is short by ~102.5GB VRAM for Llama 3.1 405B at Q4.

AmazoneBayCompare cloud prices

We may earn a commission from cloud and hardware partners at no extra cost to you.

Hardware Specs

GPU
B300
VRAM
144 GB
Bandwidth
4099.999999999999 GB/s
MSRP
$0

Model Requirements

Model
Llama 3.1 405B
Parameters
405B
VRAM (Q4)
~246.5 GB
Context
128,000
0
Llama 3.1 405B Details B300 Specs

Try Llama 3.1 405B on a different GPU

Try another model on B300

Full compatibility matrix

Related Checks

NVIDIA GB200 NVL72 + Llama 3.1 405B✅GB200 NVL72 + Llama 3.1 405B✅NVIDIA DGX H100 + Llama 3.1 405B✅AWS EC2 P5 Instance (8x H100) + Llama 3.1 405B✅

Explore more

VRAM Calculator

Check GPU compatibility for any AI model

Cloud GPU Pricing

Compare pricing across 24+ providers

GPU Comparison

Side-by-side GPU specs and benchmarks

Compatibility Lab

GPU × Model compatibility matrix

HQ
HardwareHQ

Free AI hardware database and decision tools — compare GPUs, check model fit, and track live cloud pricing.

Database

  • GPU Database
  • AI Model Database
  • GPU Comparison
  • Compatibility Matrix
  • AI Benchmarks
  • Model Finder

Market & Pricing

  • Cloud GPU Pricing
  • Buy vs Rent
  • Inference Calculator
  • Training Calculator
  • VRAM Calculator

Planning Studios

  • Research Studio
  • RAG Studio
  • Creative Studio
  • Coding Studio
  • Edge AI Studio
  • Hardware Architect
  • Topology Lab

Reference & Guides

  • LLM Requirements
  • Quantization Guide
  • Best GPU for LLaMA
  • Best GPU for DeepSeek
  • AI Homelab Guide

Company

  • About
  • Contact
  • Advertise
  • Privacy Policy
  • Terms of Service

© 2026 HardwareHQ. All rights reserved.

@HardwareHQio