Home / Models / Phi-3.5 Mini Instruct / NVIDIA GTX 1660 SUPER 6 GB
Can Phi-3.5 Mini Instruct run on NVIDIA GTX 1660 SUPER 6 GB?
Yes. Calculated memory fit: Phi-3.5 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-3.5 Mini Instruct · 3.8B
- GPU
- NVIDIA GTX 1660 SUPER 6 GB · 6 GB advertised
Memory calculation
Breakdown for Q4 at 8K context, batch size 1. Calculator v1.0.0.
| Model weights | 2.2 GB |
|---|---|
| KV cache | 3.0 GB |
| Runtime reserve | 0.6 GB |
| Safety margin | 0.3 GB |
| Required (estimated) | 6.2 GB |
| GPU usable VRAM | 5.4 GB |
Result: FITS WITH LIMITED CONTEXT
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 | Limited context | Limited context | Limited context | Limited context | Limited context |
| Q4 | Fits | Fits | Limited context | Limited context | Limited context | Limited context | Limited context |
| Q5 | Fits | Fits | Limited context | Limited context | Limited context | Limited context | Limited context |
| Q6 | Fits | Limited context | Limited context | Limited context | Limited context | Limited context | Limited context |
| Q8 | Offload | Offload | Offload | Offload | Offload | Offload | Offload |
What fits entirely in VRAM?
- Q3 at 2K context
- Q3 at 4K context
- Q4 at 2K context
- Q4 at 4K context
- Q5 at 2K context
- Q5 at 4K 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.

MSI VENTUS GeForce GTX 1660 SUPER XS OC NVIDIA 6 GB GDDR6
6 GB · Amazon EXACT
$199.22
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ASUS TUF Gaming TUF-GTX1660S-O6G-GAMING NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon EXACT
$193.22
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MSI GAMING GeForce GTX 1660 SUPER X NVIDIA 6 GB GDDR6
6 GB · Amazon EXACT
$375.00
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ASUS Dual -GTX1660S-O6G-EVO NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon EXACT
$255.00
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GIGABYTE GV-N166SOC-6GD graphics card NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon EXACT
$270.99
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MSI AERO ITX GeForce GTX 1660 SUPER OC NVIDIA 6 GB GDDR6
6 GB · Amazon EXACT
$399.00
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ASUS Phoenix PH-GTX1660S-O6G NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon EXACT
$192.89
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GIGABYTE GAMING GV-N166SGAMING OC-6GD graphics card NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon EXACT
$244.55
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ASUS ROG -STRIX-GTX1660S-A6G-GAMING graphics card NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon EXACT
$299.00
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ASUS Phoenix PH-GTX1660S-6G NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched

ASUS TUF Gaming TUF-GTX1660S-6G-GAMING NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched

ASUS ROG GTX1660S-O6G-GAMING NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched

ASUS TUF Gaming TUF-3-GTX1660S-O6G-GAMING NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched

ASUS Dual -GTX1660S-O6G-MINI NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched

ASUS PH-GTX1660S-6G NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched

ASUS Dual -GTX1660S-6G-EVO NVIDIA GeForce GTX 1660 SUPER 6 GB GDDR6
6 GB · Amazon unmatched
Sources
Model: official config microsoft/Phi-3.5-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.