Can I Run Nemotron Cascade 2 on NVIDIA GeForce RTX 4070 Super?
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 Super'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).
Get a personalized upgrade path →
or compare on Vast.ai from $0.35/hr (typical low · varies)
As an Amazon Associate we earn from qualifying purchases. Cloud GPU links are referral links — we may earn a commission at no extra cost to you.
NVIDIA GeForce RTX 4070 Super Specs
| VRAM | 12 GB |
| Memory Bandwidth | 504 GB/s |
Nemotron-Cascade 2 30B-A3B on the NVIDIA GeForce RTX 4070 Super: 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 Super: 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 Super 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:
Affiliate links — we may earn a commission if you sign up, at no extra cost to you.
Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
FAQ
Is the NVIDIA GeForce RTX 4070 Super enough to run Nemotron Cascade 2 locally?
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 Super'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's the cheapest GPU that runs 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 Ti
- Nemotron Cascade 2 on NVIDIA GeForce RTX 4070
- Nemotron Cascade 2 on NVIDIA GeForce RTX 3060 (12GB)
- Nemotron Cascade 2 on Intel Arc B580
Popular Models on the NVIDIA GeForce RTX 4070 Super
- DeepSeek R1 on NVIDIA GeForce RTX 4070 Super
- Qwen 3 on NVIDIA GeForce RTX 4070 Super
- Qwen 2.5 Family on NVIDIA GeForce RTX 4070 Super
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 Super GPU Page | VRAM calculator | Check Your Hardware