Can I Run Nemotron Cascade 2 on NVIDIA GeForce RTX 4070 Ti?
Written by Jakub Rusinowski · Last updated September 29, 2026
No — Nemotron-Cascade 2 30B-A3B at Q4_K_M needs 21.7 GB at 8K context (19.1 GB weights + 2.6 GB KV cache/overhead), and the NVIDIA GeForce RTX 4070 Ti's 12 GB leaves it ~9.7 GB short. The cheapest card that runs it is the NVIDIA GeForce RTX 5090 Laptop GPU (24 GB).
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NVIDIA GeForce RTX 4070 Ti Specs
| VRAM | 12 GB |
| Memory Bandwidth | 504 GB/s |
Nemotron-Cascade 2 30B-A3B on the NVIDIA GeForce RTX 4070 Ti: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 65.8 GB | ✗ No | — | — |
| Q8_0 | 36.2 GB | ✗ No | — | Build for this |
| Q6_K | 28.5 GB | ✗ No | — | — |
| Q5_K_M | 25 GB | ✗ No | — | Build for this |
| Q4_K_M | 21.7 GB | ✗ No | — | Build for this |
| Q3_K_M | 16.1 GB | ✗ No | — | — |
| Q2_K | 13 GB | ✗ No | — | — |
Assumes an 8K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 12 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the NVIDIA GeForce RTX 4070 Ti: 8K 21.7 GB ✗ · 32K 27.1 GB ✗ · 128K 48.9 GB ✗. Past 8K it no longer fits 12 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? Nemotron-Cascade 2 30B-A3B on 24 GB of system RAM, CPU only: runs.
Why It Does Not Fit
Every Nemotron Cascade 2 variant requires more VRAM than the NVIDIA GeForce RTX 4070 Ti provides (12 GB).
Nearest GPU That Fits
NVIDIA GeForce RTX 5090 Laptop GPU (24 GB VRAM).
Nemotron Cascade 2 needs ~22 GB but this GPU has 12 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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FAQ
Will Nemotron Cascade 2 run on the NVIDIA GeForce RTX 4070 Ti?
No — Nemotron-Cascade 2 30B-A3B at Q4_K_M needs 21.7 GB at 8K context (19.1 GB weights + 2.6 GB KV cache/overhead), and the NVIDIA GeForce RTX 4070 Ti's 12 GB leaves it ~9.7 GB short. The cheapest card that runs it is the NVIDIA GeForce RTX 5090 Laptop GPU (24 GB).
What GPU should I get instead to run Nemotron Cascade 2?
The NVIDIA GeForce RTX 5090 Laptop GPU (24 GB VRAM) is the cheapest upgrade that fits it.
Nemotron Cascade 2 on Other GPUs
- Nemotron Cascade 2 on NVIDIA GeForce RTX 5070
- Nemotron Cascade 2 on NVIDIA GeForce RTX 4070 Super
- Nemotron Cascade 2 on NVIDIA GeForce RTX 4070
- Nemotron Cascade 2 on NVIDIA GeForce RTX 3060 (12GB)
- Nemotron Cascade 2 on Intel Arc B580
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VRAM Tier
Troubleshooting
- CUDA out of memory — why it happens and how to fix it
- Which GGUF quant should I download? (Q4 vs Q5 vs Q8)
Buying Guide
← Can I Run It? | Nemotron Cascade 2 Model Page | NVIDIA GeForce RTX 4070 Ti GPU Page | VRAM calculator | Check Your Hardware