Home / Models / Phi-3 Medium 4K Instruct / NVIDIA RTX 3080 10 GB

Calculated memory fit · not a benchmark

Can Phi-3 Medium 4K Instruct run on NVIDIA RTX 3080 10 GB?

Yes. Calculated memory fit: Phi-3 Medium 4K Instruct can run entirely in this GPU’s usable VRAM at one or more supported quantizations.

Can it run?

Can it run?
Yes, full GPU fit (calculated estimate).
Full GPU fit?
Yes
Model
Phi-3 Medium 4K Instruct · 14B
GPU
NVIDIA RTX 3080 10 GB · 10 GB advertised

Memory calculation

Breakdown for Q4 at 4K context, batch size 1. Calculator v1.0.0.

Model weights8.2 GB
KV cache0.8 GB
Runtime reserve0.9 GB
Safety margin0.5 GB
Required (estimated)10.4 GB
GPU usable VRAM9.0 GB

Result: CPU RAM OFFLOAD REQUIRED

Quantization table

Quantization2K4K
BF16NoNo
FP16NoNo
Q3FitsFits
Q4OffloadOffload
Q5OffloadOffload
Q6OffloadOffload
Q8OffloadOffload

What fits entirely in VRAM?

What requires RAM offload?

Offload is shown only when the model does not fully fit in usable VRAM but stays within the modeled offload allowance.

Available graphics cards

These SKUs use this GPU chip. Amazon CTAs appear only for EXACT/HIGH matches. Absence of a price does not change the compatibility result above.

Check price on Amazon

Sources

Model: official config microsoft/Phi-3-medium-4k-instruct (main). GPU/product specs: Icecat. Compatibility: RigForAI calculator v1.0.0 estimated VRAM · Q8 at 4K: CPU_RAM_OFFLOAD_REQUIRED. Amazon: affiliate commerce match, not a spec source.