Can I Run IBM Granite 4.1 on AMD Radeon RX 7900 XTX?

Name: LLM Configurator — GPU VRAM Checker
Author: LLM Configurator

作者： Jakub Rusinowski · 最后更新： 2026年4月29日

Yes, comfortably — you'll have ~6 GB of headroom running Granite 4.1 30B at FP8 (Q4 est. ~12-15GB, unconfirmed) (18 GB, ~53 tok/s (est.)).

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在亚马逊查看价格 — AMD Radeon RX 7900 XTX 24GB

AMD Radeon RX 7900 XTX Specs

VRAM	24 GB
Memory Bandwidth	960 GB/s

Granite 4.1 30B on the AMD Radeon RX 7900 XTX: VRAM by quantization

Quant	VRAM needed	Fits 24 GB?	Max context
F16	70.4 GB	✗ No	—
Q8_0	42.3 GB	✗ No	—
Q6_K	35 GB	✗ No	—
Q5_K_M	31.7 GB	✗ No	—
Q4_K_M	28.5 GB	✗ No	—
Q3_K_M	23.2 GB	✓ Yes	4K
Q2_K	20.3 GB	✓ Yes	4K

VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 24 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 AMD Radeon RX 7900 XTX

Granite 4.1 30B	FP8 (Q4 est. ~12-15GB, unconfirmed) · 18 GB · ~53 tok/s (est.)
Granite 4.1 8B	Q4_K_M · 5 GB · ~192 tok/s (est.)
Granite 4.1 3B	Q4_K_M · 2 GB · ~400 tok/s (est.)

Buy vs. rent IBM Granite 4.1

Buy the GPU

~$999

AMD Radeon RX 7900 XTX · MSRP

Rent by the hour

from $0.34/hr

RTX 4090 (24 GB) class

At 2 hrs/day, buying (~$999) beats renting at $0.34/hr after about 4.1 years.

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Rent on RunPod →

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