---
title: "GPU planning guides | UZ Dynamics"
description: "Choose a GPU rental format and budget, compare RTX 4090 with L40S, and plan LLM inference, VRAM with the KV cache, LoRA and QLoRA."
url: "https://uzdynamics.ai/en/guides"
lang: "en"
image: "https://uzdynamics.ai/en/opengraph-image/card?1237d0f845bd82b9"
alternates:
  ru: "https://uzdynamics.ai/ru/guides"
  uz: "https://uzdynamics.ai/uz/guides"
  en: "https://uzdynamics.ai/en/guides"
---

> For an index of this site's pages, see [llms.txt](https://uzdynamics.ai/llms.txt). A markdown copy of each page is at its address with `.md` appended.

# GPU planning guides

From format and budget to your GPU choice: compare memory, rental terms and results on your workload.

- ## [How to choose a GPU for LLM inference](https://uzdynamics.ai/en/guides/llm-inference)
  Match a GPU to your model, context and concurrent requests. An 8B memory example, quantization limits and a practical latency test plan.
- ## [LLM VRAM: weights, KV cache and context](https://uzdynamics.ai/en/guides/vram-kv-cache)
  Why weight size is not the full VRAM requirement. A worked KV cache example for 8,192 tokens and four requests, with limits of the formula.
- ## [LoRA and QLoRA: plan your GPU configuration](https://uzdynamics.ai/en/guides/lora-qlora)
  What uses memory during LoRA and QLoRA: base weights, adapters, optimiser state and activations. Configure and test before fine-tuning.
- ## [Cloud GPU, dedicated server or API: which should you choose?](https://uzdynamics.ai/en/guides/gpu-cloud-vs-dedicated-vs-api)
  Compare cloud GPUs, dedicated servers and managed model APIs: responsibilities, serverless, total costs and questions to ask a provider.
- ## [How to estimate GPU rental cost: compute, storage and idle time](https://uzdynamics.ai/en/guides/gpu-rental-cost)
  Build a GPU rental budget from billable time, storage, data transfer and additional costs, with a diagram and a calculator using your own inputs.
- ## [RTX 4090 or L40S: which GPU should you rent for AI?](https://uzdynamics.ai/en/guides/rtx-4090-vs-l40s)
  Compare the RTX 4090 24 GB and L40S 48 GB for LLMs, image generation and fine-tuning: memory, limitations, performance testing and cost per result.

UZ Dynamics is in early access. These guides help describe a workload; they do not confirm GPU availability, a ready environment or execution speed. Availability, the exact configuration, prices and access terms need confirmation when discussing your request.

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