Home / Value / Cheapest GPU for Phi-4 Reasoning
Cheapest GPU for Phi-4 Reasoning
Q4 · 8K (default)
Ranked by lowest fresh Amazon-matched board-partner SKU price among GPUs that fully fit this exact workload. This is not a speed ranking and not a “best GPU” list. Query combinations are not indexed.
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Requirement
- Model
- Phi-4 Reasoning
- Quantization · context
- Q4 · 8K
- Required VRAM
- 11.6 GB
- Calculator
- v1.0.0
57 canonical GPUs fully fit. 33 of them have a fresh current price. 24 compatible GPUs have no current price.
Formula: MIN(live fresh Amazon-matched board-partner SKU price) WHERE compatibility = FITS_IN_VRAM. Sort: price ASC, advertised VRAM ASC, canonical GPU id ASC. Prices are the lowest fresh Amazon-matched board-partner SKU, not MSRP or a street-price average.
Among 33 canonical GPUs with a fresh matched Amazon offer currently available in RigForAI. Ranked 33. Unpriced compatible: 24. This is not the entire US market — only canonical GPUs with a fresh matched Amazon offer currently in RigForAI.
Cheapest currently available full-VRAM GPU
NVIDIA Quadro P5000 16 GB
- Advertised VRAM
- 16 GB
- Usable VRAM
- 14.4 GB
- Headroom
- 2.8 GB
- Compatibility
- FITS_IN_VRAM
- Current fresh Amazon price
- $330.99
- Winning physical SKU
- HP NVIDIA Quadro P5000 (16GB) GDDR5XHPASIN B01N4GJ0HL
- Offer fetched
- 2026-08-17 14:54 UTC
Why it ranks first
- FITS_IN_VRAM for this model, quantization, and context
- current fresh matched Amazon offer (EXACT/HIGH, not a bundle)
- lowest price among 33 eligible priced GPUs
- price ASC, advertised VRAM ASC, canonical GPU id ASC.
Next option: NVIDIA RTX 5000 16 GB $596.99 · difference +$266.00. Build a complete PC around this option · Workstations · Rent a server · Buy vs rent. GPU-only price is not a complete-build cost.
Other currently priced full-fit GPUs
Ranked by lowest fresh Amazon-matched board-partner SKU price among GPUs that fully fit this exact workload.
Compatible — current price unavailable
These GPUs calculate as a full VRAM fit. They are not inserted into the current-price ranking because RigForAI has no fresh matched Amazon offer for them. That is not the same as too expensive or incompatible.
- NVIDIA RTX 4500 24 GB · 24 GB advertised
- NVIDIA Tesla K80 24 GB · 24 GB advertised
- NVIDIA Tesla M60 16 GB · 16 GB advertised
- NVIDIA Tesla M10 32 GB · 32 GB advertised
- NVIDIA Tesla M40 24 GB · 24 GB advertised
- NVIDIA Quadro GV100 32 GB · 32 GB advertised
- NVIDIA RTX 6000 24 GB · 24 GB advertised
- NVIDIA RTX 8000 48 GB · 48 GB advertised
- NVIDIA RTX A6000 48 GB · 48 GB advertised
- NVIDIA RTX A5500 24 GB · 24 GB advertised
- AMD Radeon RX 9070 16 GB · 16 GB advertised
- AMD Radeon RX 9060 XT 16 GB · 16 GB advertised
- NVIDIA H100 80 GB · 80 GB advertised
- NVIDIA H100 NVL 94 GB · 94 GB advertised
- NVIDIA A100 80 GB · 80 GB advertised
- NVIDIA A100 40 GB · 40 GB advertised
- NVIDIA L40S 48 GB · 48 GB advertised
- NVIDIA L40 48 GB · 48 GB advertised
- NVIDIA L4 24 GB · 24 GB advertised
- NVIDIA Tesla V100S 32 GB · 32 GB advertised
- NVIDIA H200 141 GB · 141 GB advertised
- NVIDIA GH200 96 GB · 96 GB advertised
- NVIDIA B200 192 GB · 192 GB advertised
- NVIDIA RTX PRO 6000 Blackwell 96 GB · 96 GB advertised
Supported llama.cpp decode per current $1,000
Not ranked here: comparable published MEDIUM-or-higher-confidence llama.cpp decode predictions with a fresh price are unavailable for this workload. Raw Phase 5 estimates may still appear on GPU and comparison pages.
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