Written by Jakub Rusinowski · Last updated July 12, 2026
No — Phi-4 Family doesn't fit the NVIDIA GeForce RTX 3070's 8 GB. The cheapest card that runs it is the NVIDIA GeForce RTX 3080 (10GB) (10 GB).
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| VRAM | 8 GB |
| Memory Bandwidth | 448 GB/s |
| Quant | VRAM needed | Fits 8 GB? | Max context |
|---|---|---|---|
| F16 | 29.6 GB | ✗ No | — |
| Q8_0 | 16.5 GB | ✗ No | — |
| Q6_K | 13.1 GB | ✗ No | — |
| Q5_K_M | 11.6 GB | ✗ No | — |
| Q4_K_M | 10.1 GB | ✗ No | — |
| Q3_K_M | 7.6 GB | ✓ Yes | 4K |
| Q2_K | 6.2 GB | ✓ Yes | 8K |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 8 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Every Phi-4 Family variant requires more VRAM than the NVIDIA GeForce RTX 3070 provides (8 GB).
NVIDIA GeForce RTX 3080 (10GB) (10 GB VRAM).
Phi-4 Family needs ~8 GB but this GPU has 8 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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No — Phi-4 Family doesn't fit the NVIDIA GeForce RTX 3070's 8 GB. The cheapest card that runs it is the NVIDIA GeForce RTX 3080 (10GB) (10 GB).
The NVIDIA GeForce RTX 3080 (10GB) (10 GB VRAM) is the cheapest upgrade that fits it.
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