Can I Run IBM Granite 4.1 on NVIDIA L40S?

Autor: Jakub Rusinowski · Ostatnia aktualizacja: 21 lipca 2026

Yes, comfortably — you'll have ~17.1 GB of headroom running Granite 4.1 30B at FP8 (Q4 est. ~12-15GB, unconfirmed) (30.9375 GB, ~24 tok/s (est.)).

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NVIDIA L40S 48GB
48 GB VRAM · 350 W board power
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NVIDIA L40S Specs

VRAM48 GB
Memory Bandwidth864 GB/s

Granite 4.1 30B on the NVIDIA L40S: VRAM by quantization

QuantVRAM neededFits 48 GB?Max context
F1661.7 GB✗ No
Q8_033.6 GB✓ Yes64K
Q6_K26.3 GB✓ Yes64K
Q5_K_M23 GB✓ Yes64K
Q4_K_M19.8 GB✓ Yes128K
Q3_K_M14.5 GB✓ Yes128K
Q2_K11.6 GB✓ Yes128K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 48 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.

IBM Granite 4.1 Sizes That Fit the NVIDIA L40S

Granite 4.1 30BFP8 (Q4 est. ~12-15GB, unconfirmed) · 30.9375 GB · ~24 tok/s (est.)
Granite 4.1 8BQ4_K_M · 4.83 GB · ~111 tok/s (est.)
Granite 4.1 3BQ4_K_M · 1.81125 GB · ~199 tok/s (est.)
Buy vs. rent IBM Granite 4.1
Buy the GPU
~$7,499
NVIDIA L40S · MSRP
Rent by the hour
from $0.55/hr
A100 (40 GB) class

At 2 hrs/day, buying (~$7,499) beats renting at $0.55/hr after about 18.9 years.

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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.

FAQ

Is the NVIDIA L40S enough to run IBM Granite 4.1 locally?

Yes, comfortably — you'll have ~17.1 GB of headroom running Granite 4.1 30B at FP8 (Q4 est. ~12-15GB, unconfirmed) (30.9375 GB, ~24 tok/s (est.)).

What's the best IBM Granite 4.1 size for the NVIDIA L40S?

Granite 4.1 30B at FP8 (Q4 est. ~12-15GB, unconfirmed) quantization (30.9375 GB), estimated ~24 tokens/sec.

Every IBM Granite 4.1 size on the NVIDIA L40S

SizeVRAMVerdictSpeed
Granite 4.1 30B30.9 GBRuns~24 tok/s
Granite 4.1 8B4.8 GBRuns~111 tok/s
Granite 4.1 3B1.8 GBRuns~199 tok/s

IBM Granite 4.1 on Other GPUs

Popular Models on the NVIDIA L40S

VRAM Tier

Troubleshooting

Buying Guide

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