Autor: Jakub Rusinowski · Ostatnia aktualizacja: 12 lipca 2026
No — Nemotron 70B doesn't fit the AMD Radeon RX 7900 XT's 20 GB; you're short by ~5.4 GB even at Q2_K. The cheapest card that runs it is the NVIDIA RTX 6000 Ada Generation (48 GB).
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| VRAM | 20 GB |
| Memory Bandwidth | 800 GB/s |
| Quant | VRAM needed | Fits 20 GB? | Max context |
|---|---|---|---|
| F16 | 143.3 GB | ✗ No | — |
| Q8_0 | 77.2 GB | ✗ No | — |
| Q6_K | 60 GB | ✗ No | — |
| Q5_K_M | 52.2 GB | ✗ No | — |
| Q4_K_M | 44.8 GB | ✗ No | — |
| Q3_K_M | 32.2 GB | ✗ No | — |
| Q2_K | 25.4 GB | ✗ No | — |
VRAM needed assumes a 4K-token context with an f16 KV cache; “Max context” is the largest window that still fits in 20 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Every Nemotron 70B variant requires more VRAM than the AMD Radeon RX 7900 XT provides (20 GB).
NVIDIA RTX 6000 Ada Generation (48 GB VRAM).
Nemotron 70B needs ~43 GB but this GPU has 20 GB. Rent a A100 (80 GB)-class GPU by the hour instead of buying one:
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
No — Nemotron 70B doesn't fit the AMD Radeon RX 7900 XT's 20 GB; you're short by ~5.4 GB even at Q2_K. The cheapest card that runs it is the NVIDIA RTX 6000 Ada Generation (48 GB).
The NVIDIA RTX 6000 Ada Generation (48 GB VRAM) is the cheapest upgrade that fits it.
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