Inside The Machine
NVIDIA graphics card · current · data 2026-10-15

GeForce RTX 5090 for local AI.

With 32 GB it runs Qwen3.8 27B (needs 22.7 GB). 75 models fit. Published speed: gpt-oss-20b at 318.4 tokens/sec.

Memory32 GB

vram

Bandwidth1792 GB/s

Higher means faster answers.

PriceFrom about $5,700

As of 2026-10-15. Check before buying.

Which models fit

By memory option.

Usable: 75% on Macs and shared-memory PCs, VRAM minus 1 GB on graphics cards (estimates).
MemoryUsableModels that fitBest three
32 GB31 GB75Qwen3.8 27B (22.7 GB), K2 Horizon MoVA 36B-A4B (28.1 GB), Qwen3.5 27B (21.5 GB)
Speed

Published speeds.

Measured by others, with sources. Not our tests.

ModelTokens/secEngineSetupSource
gpt-oss-20b318.4llama.cpp · MXFP4RTX 5090 + Ryzen 7 9850X3D (chat-short workload)community-measured · 2026-10-15
Questions

Short answers.

What is the best local LLM for the GeForce RTX 5090?
With 32 GB, Qwen3.8 27B (needs 22.7 GB, AA 33.7). 75 of 124 models fit.
How fast is the GeForce RTX 5090 for local AI?
Published: gpt-oss-20b at 318.4 tokens/sec (llama.cpp, RTX 5090 + Ryzen 7 9850X3D (chat-short workload)). These are other people's measurements, not ours.
How much does the GeForce RTX 5090 cost?
From about $5,700 (as of 2026-10-15). 2026 prices are inflated by the memory-chip shortage; check before buying.

Specs from NVIDIA – Compare GeForce graphics cards (memory, bandwidth, TGP) (2026-10-15). Prices are approximate and dated; 2026 prices are inflated by the memory-chip shortage.

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# GeForce RTX 5090 for local AI

URL: https://insidethemachine.ai/machines/rtx-5090
Type: NVIDIA graphics card. Chip: RTX 5090. Memory: vram, options 32 GB. Bandwidth: 1792 GB/s. Spec source: https://www.nvidia.com/en-us/geforce/graphics-cards/compare/ (2026-10-15).
Price: from about $5,700 (2026-10-15, approximate). Status: current.

## Which models fit

| memory GB | usable GB | models that fit | best 3 |
|---|---|---|---|
| 32 | 31 | 75 | Qwen3.8 27B (22.7 GB), K2 Horizon MoVA 36B-A4B (28.1 GB), Qwen3.5 27B (21.5 GB) |

## Published speeds (not our tests)

- gpt-oss-20b: 318.4 tok/s decode (llama.cpp, MXFP4, RTX 5090 + Ryzen 7 9850X3D (chat-short workload), community-measured) https://llm-speed.com/m/gpt-oss-20b (2026-10-15)

Notes: Street price is ~3.5× MSRP amid the 2026 DRAM shortage; rtx.live lists lowest in-stock at $5,700 (Micro Center).

## Questions

**What is the best local LLM for the GeForce RTX 5090?**
With 32 GB, Qwen3.8 27B (needs 22.7 GB, AA 33.7). 75 of 124 models fit.

**How fast is the GeForce RTX 5090 for local AI?**
Published: gpt-oss-20b at 318.4 tokens/sec (llama.cpp, RTX 5090 + Ryzen 7 9850X3D (chat-short workload)). These are other people's measurements, not ours.

**How much does the GeForce RTX 5090 cost?**
From about $5,700 (as of 2026-10-15). 2026 prices are inflated by the memory-chip shortage; check before buying.