New RTX 5060 Ti 16GB or a used RTX 3090 for local AI?

New RTX 5060 Ti 16GB or a used RTX 3090? Buy the used 3090 only if you need 27–32B models most days; otherwise buy the 5060 Ti 16GB. The 3090's 24GB holds Qwen3-32B at Q4 (a 19.8GB file) and ran it at 30.3 tokens/sec in hardware-corner.net's llama.cpp tests; a 16GB card can't load it at all. But the price gap has blown open: on Nov 6, 2026 used 3090s averaged $1,591 on eBay US (ResalePrices), while an RTX 5060 Ti sat around $657 to $705 (ResalePrices' used average and GPU Poet's lowest eBay average). For 8–20B models the cheaper card does the job, draws 180W instead of 350W, and leaves about $900 for renting a 24GB card on the days you need one.

Which models can each card run?

The 5060 Ti 16GB runs up to about 20B; the 3090 runs up to 32B dense models. A model has to fit in VRAM to run fast, so capacity decides first and speed second. On Qwen's own Hugging Face pages (read Nov 6, 2026), Qwen3-14B at Q4_K_M is a 9GB file and Qwen3-32B at Q4_K_M is 19.8GB. The 14B fits either card with room for context; the 32B fits only the 3090.

Hardware-corner.net's tables show the same line. Its RTX 5060 Ti 16GB page tests Qwen3-8B, Qwen3-14B and gpt-oss-20b, and stops there. Its RTX 3090 page adds Gemma 4 26B, Qwen3.5 27B, Gemma 4 31B, Qwen3 30B-A3B, Qwen3-32B and Qwen3.5 35B. Put your own model and context length into the VRAM calculator before you buy: it shows whether it fits in 16GB or 24GB.

Is the RTX 3090 faster than the RTX 5060 Ti for LLMs?

Yes, on every model both can run, by about 1.4x to 1.8x depending on model and context length. NVIDIA's spec pages give the 3090 a 384-bit memory bus and the 5060 Ti a 128-bit one, and token generation speed follows memory bandwidth. In hardware-corner.net's tables, at the same 16k context:

On Qwen3-8B at 4k context the gap is 69.2 vs 115.3 tokens/sec. Those are hardware-corner.net's measurements, not tests we ran; its 3090 rows are labelled "CUDA, -fa 1" (llama.cpp with flash attention), and its 5060 Ti page doesn't state its setup. For chat, 30 tokens/sec already reads faster than you do, so the 5060 Ti's speed is fine for the models it can hold. The 3090's speed matters more for long prompts, agents and coding tools that churn through many tokens.

*Memory, bus and power from NVIDIA's RTX 5060 family and RTX 3090 pages; speeds from hardware-corner.net (5060 Ti 16GB, 3090); prices from ResalePrices and GPU Poet, all read Nov 6, 2026.

How much does each card cost in November 2026?

A used 3090 averaged $1,591 and a 5060 Ti about $657 to $705 on Nov 6, 2026. Both have climbed fast. ResalePrices put the used 3090 average at $1,591 from 325 eBay US listings, with a fair asking range of $1,542–$1,656 and a 27.1% rise in 90 days. That's above the 3090's original $1,499 launch price.

The RTX 5060 Ti 16GB launched at a $429 MSRP (GPU Poet's page lists it). On Nov 6, 2026 GPU Poet's current lowest average of eBay listings was $705, and ResalePrices' used average was $657 with a fair range of $628–$772, up 30% in 90 days. Neither tracker splits the 16GB card from the 8GB one, so read the listing, not the headline price.

By our arithmetic from those prices, the 3090 now costs about 2.3 times as much ($1,591 vs $705) for 1.5 times the VRAM and about 1.6 times the speed on a 14B. Per gigabyte of VRAM that's $66 for the 3090 and $44 for the 5060 Ti. Earlier in 2026 the 3090 was the cheaper way to buy VRAM; in November it isn't. It's still the cheapest way to own 24GB, which is what 32B models need. Our used RTX 3090 buying guide covers what to pay and how to check a card before you hand over the money.

ASUS Prime GeForce RTX 5060 Ti 16GB

The 16GB version of the RTX 5060 Ti (NVIDIA lists 16GB or 8GB of GDDR7). Bought new, it comes with a warranty. Check the listing says 16GB before you buy.

Best for: 1440p gaming, and local AI that needs 16GB of VRAM on a budget.

Specs, AI models it runs and rental prices →

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Does the 3090's power draw matter?

A little, on the bill; more for your PSU and case. NVIDIA rates the 3090 at 350W with a 750W recommended power supply, and the 5060 Ti at 180W with a 600W supply. By our arithmetic, at the US average residential price of 18.16 cents/kWh (EIA, August 2026), 4 hours a day at full load adds about $45 a year for the 3090's extra 170W. The bigger costs are practical: a used 3090 may need a new PSU, more case airflow, and often new thermal pads, because its GDDR6X memory runs hot.

When does renting beat buying either card?

When you'd use 24GB a few hours a week. At 21:20 UTC on Nov 6, 2026, our cloud GPU tracker read a single RTX 3090 on Vast.ai from $0.10 an hour on-demand (median $0.20), an RTX 5060 Ti 16GB from $0.11, and the 3090 on Runpod at $0.50. By our arithmetic, the $1,591 for a used 3090 buys about 7,900 hours of a rented one at the Vast median, before storage fees.

The split that fits most people: own the 5060 Ti 16GB for everyday 8–20B work, and rent a 24GB card for the 32B jobs. The roughly $890 price gap between the two cards pays for about 4,400 hours of a rented 3090 at that median. Prices change every hour; /cloud-gpu shows today's, and what it costs to run Qwen3-32B prices the exact model.

Which should you buy?

Decide from your model list, not the spec sheet. The VRAM calculator shows what fits in 16GB and 24GB, what the RTX 5060 Ti 16GB can run goes model by model, and if a card under $500 is the real budget, see the best budget GPU for local AI.