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All estimates are approximations based on mathematical models and public specifications. Actual performance may vary. Do not make purchasing decisions based solely on these estimates.

Data sourced from Hugging Face, Ollama, and official model documentation. Model names and logos are trademarks of their respective owners.

© 2026 Will It Run AI — Fase Consulting Ibiza, S.L. (NIF: B57969656)

Home/Llama 3.3 70B/on RTX 3080 Ti 12GB

Can it run?

Can RTX 3080 Ti 12GB run Llama 3.3 70B?

FWon't run

Too heavy

Using Q4_K_M in Ollama

Capabilities:

Fit status

Too heavy

Decode

15.8 tok/s

TTFT

12249 ms

Safe context

4K

Memory

56.0 GB / 12.0 GB

Memory breakdown

Weights42.7 GB
KV Cache10.9 GB
Runtime1.2 GB
Headroom1.2 GB

Performance by workload

WorkloadGradeFitDecodeTTFTContext
Agentic CodingFToo heavy15.8 tok/s17817 ms6K
ChatFToo heavy15.8 tok/s6681 ms4K
CodingFToo heavy15.8 tok/s12249 ms4K
RAGFToo heavy15.8 tok/s22271 ms6K
ReasoningFToo heavy15.8 tok/s14476 ms4K

Quantization options

How Llama 3.3 70B (70B params) fits at each quantization level on RTX 3080 Ti 12GB (12.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
27.3 GB
LowF0
Q3_K_S
3
34.3 GB
LowF0
NVFP4
4
39.2 GB
MediumF0
Q4_K_M
4
42.7 GB
MediumF0
Q5_K_M
5
50.4 GB
HighF0
Q6_K
6
57.4 GB
HighF0
Q8_0
8
74.9 GB
Very HighF0
F16
16
143.5 GB
MaximumF0

Upgrade options

Hardware that runs Llama 3.3 70B well

AppleMacBook Pro M3 Max 128GBBudget pick
C5.6 tok/s decode

~$2,499 MSRP

AppleMacBook Pro M4 Max 96GBBest value
C8.1 tok/s decode

~$2,499 MSRP

NVIDIANVIDIA H100 80GBBiggest leap
B65.9 tok/s decode

~$40,000 MSRP

NVIDIANVIDIA GH200 96GBNVIDIA upgrade
B75.9 tok/s decode

 

See all results for RTX 3080 Ti 12GBSee all hardware for Llama 3.3 70B