Home / Models / Phi-4 Mini Instruct / NVIDIA GTX 1660 Ti 6 GB

Calculated memory fit · not a benchmark

Can Phi-4 Mini Instruct run on NVIDIA GTX 1660 Ti 6 GB?

Yes. Calculated memory fit: Phi-4 Mini 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-4 Mini Instruct · 3.8B
GPU: NVIDIA GTX 1660 Ti 6 GB · 6 GB advertised

Memory calculation

Breakdown for Q4 at 8K context, batch size 1. Calculator v1.0.0.

Model weights	2.3 GB
KV cache	1.0 GB
Runtime reserve	0.6 GB
Safety margin	0.3 GB
Required (estimated)	4.2 GB
GPU usable VRAM	5.4 GB

Result: FITS IN VRAM

Quantization table

Quantization	2K	4K	8K	16K	32K	64K	128K
BF16	Offload	Offload	Offload	Offload	Offload	Offload	Offload
FP16	Offload	Offload	Offload	Offload	Offload	Offload	Offload
Q3	Fits	Fits	Fits	Fits	Limited context	Limited context	Limited context
Q4	Fits	Fits	Fits	Fits	Limited context	Limited context	Limited context
Q5	Fits	Fits	Fits	Limited context	Limited context	Limited context	Limited context
Q6	Fits	Fits	Fits	Limited context	Limited context	Limited context	Limited context
Q8	Offload	Offload	Offload	Offload	Offload	Offload	Offload

What fits entirely in VRAM?

Q3 at 16K context
Q3 at 2K context
Q3 at 4K context
Q3 at 8K context
Q4 at 16K context
Q4 at 2K context
Q4 at 4K context
Q4 at 8K context
Q5 at 2K context
Q5 at 4K context
Q5 at 8K context
Q6 at 2K context

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

GIGABYTE

GIGABYTE GeForce GTX 1660 Ti OC 6G

6 GB · Amazon EXACT

$430.00

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GIGABYTE

GIGABYTE GeForce GTX 1660 Ti WINDFORCE OC 6G

6 GB · Amazon EXACT

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GIGABYTE

GIGABYTE GAMING GeForce GTX 1660 Ti OC 6G

6 GB · Amazon unmatched

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ASUS

ASUS TUF Gaming Gaming GeForce® GTX 1660 Ti EVO NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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ASUS

ASUS TUF Gaming Gaming GeForce® GTX 1660 Ti EVO OC Edition NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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MSI

MSI ARMOR GeForce GTX 1660 Ti 6G OC

6 GB · Amazon unmatched

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MSI

MSI VENTUS GeForce GTX 1660 Ti XS 6G OC

6 GB · Amazon unmatched

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GIGABYTE

GIGABYTE GeForce GTX 1660 Ti MINI ITX OC 6G

6 GB · Amazon unmatched

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MSI

MSI GAMING GeForce GTX 1660 Ti X 6G

6 GB · Amazon unmatched

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ASUS

ASUS Phoenix PH-GTX1660TI-O6G NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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ASUS

ASUS Dual -GTX1660TI-O6G NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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ASUS

ASUS TUF-GTX1660TI-O6G-GAMING NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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ASUS

ASUS TUF Gaming TUF-GTX1660TI-T6G-EVO-GAMING NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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GIGABYTE

GIGABYTE AORUS GeForce GTX 1660 Ti 6G

6 GB · Amazon unmatched

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ASUS

ASUS ROG -STRIX-GTX1660TI-O6G-GAMING NVIDIA GeForce GTX 1660 Ti 6 GB GDDR6

6 GB · Amazon unmatched

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Sources

Model: official config microsoft/Phi-4-mini-instruct (main). GPU/product specs: Icecat. Compatibility: RigForAI calculator v1.0.0 estimated VRAM · Q8 at 8K: CPU_RAM_OFFLOAD_REQUIRED. Amazon: affiliate commerce match, not a spec source.