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Maximum LLM Size That Fits the RTX 5060 Ti 16 GB

How big can an LLM be and still fit on a 16 GB GPU? The precise model-size ceiling per quantisation strategy with concrete examples.

The most-asked question for the 5060 Ti is "will my model fit?" This page is the precise answer.

TL;DR

Maximum model size on a 16 GB GPU: ~7B FP16, ~13B FP8, ~22B AWQ-INT4, ~30B GGUF Q4. Beyond that you need offloading (slow) or a bigger GPU.

Size ceilings by precision

PrecisionMax model paramsReason
FP16 (BF16)~7B14 GB weights leaves 2 GB for cache
FP8~13B13 GB weights leaves 3 GB for cache
INT8~14BSlightly more efficient than FP8
AWQ-INT4~22B11 GB weights leaves 5 GB for cache
GGUF Q5_K_M~18BMostly INT5
GGUF Q4_K_M~22BINT4 with quantisation scales
INT3~30BQuality cost noticeable

Concrete model examples

ModelParamsBest precision on 5060 TiFits?
Mistral 7B7BFP16 or FP8Yes, easily
Llama 3.1 8B8BFP8 (FP16 tight)Yes
Qwen 2.5 14B14BAWQ-INT4 (FP8 tight)Tight at INT4
DeepSeek-V2 16B Lite16B (MoE)AWQ-INT4Yes
Codestral 22B22BAWQ-INT4 onlyJust fits
Mixtral 8x7B47B (MoE)Does not fitNo
Llama 3 70B70BDoes not fitNo

Verdict

For a 16 GB card the practical ceiling is ~14B FP8 or ~22B INT4. Models above that need a bigger GPU.

Bottom line

If your target model is >22B, skip the 5060 Ti and start with a 5090 32 GB or larger. See when to upgrade.

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