❌ ÜBERSCHREITET EINZEL-GPU VRAM (NEEDS 2x Apple M4 Max (128GB Unified))

Llama-3.1-405B-Instruct on Apple M4 Max (128GB Unified) (128GB VRAM)

You need 2x Apple M4 Max (128GB Unified) (256 GB total VRAM) for full GPU execution, or rent an A100/H100 80GB cloud instance.

🎛️ Interaktiver VRAM-, Kontext- & Offload-Konfigurator

📊 Echtzeit-Speicher- & Performance-Telemetrie

233.02 GB / 128 GB
🟦 Modellgewichte: 228.57 GB 🟪 KV-Cache: 3.94 GB 🟨 Engine-Puffer: 0.52 GB
Benötigter GPU-VRAM233.02 GB
Benötigter System-RAM (CPU)0.00 GB
Verfügbarer Hardware-VRAM128 GB (1x Apple M4 Max (128GB Unified))
VRAM-Reserve / Defizit-105.02 GB
Geschätzte Decode-Geschwindigkeit~1.2 tokens/sec
Geschätzte Prefill-Geschwindigkeit~45 tokens/sec
Time-to-First-Token (4K Prompt)~91022 ms
Transformer-TopologieDense-GQA (126L, 8/128 KV/Q heads)

🚀 Startbefehl (vLLM / llama.cpp / Ollama)

ollama run llama3.1:405b
# Or llama.cpp server (8K context, Flash Attention):
llama-server -hf meta-llama/Llama-3.1-405B-Instruct-GGUF -c 8192 -ngl 99 -fa
CLOUD-GPU PREISVERGLEICH & MIETEN-VS-KAUFEN RECHNER

Nicht genug lokaler VRAM? Cloud-GPU in 60 Sekunden starten (Llama-3.1-405B-Instruct: 233.02 GB in 4-bit)

Recommended Cloud Tier: Multi-GPU H100 / H200 Node · Full FP16 Needs: 759.28 GB

Amortisationszeit (Kauf vs. Miete): ~32 months (vs $4,699 hardware)
Cloud Provider RTX 4090 (24GB) A100 (80GB) H100 (80GB) Est. Monthly Cost (4h/day) Free Credit / Trial Deploy
RunPod $0.44 / hr $1.39 / hr $2.39 / hr $52.80 / mo Instant PyTorch / vLLM Templates + Serverless GPU Auf RunPod starten →
Vast.ai $0.29 / hr $0.95 / hr $1.79 / hr $34.80 / mo Save 50–70% on RTX 4090 / 5090 / A100 rentals Spot-GPU mieten →
Vultr Cloud GPU — $1.79 / hr $2.69 / hr $214.80 / mo (A100) $300 Free Credit $300 Guthaben sichern →
DigitalOcean GPU — — $2.99 / hr $358.80 / mo (H100) $200 Free Credit (60d) $200 Startguthaben →

Alle Quantisierungsstufen im Detail: Llama-3.1-405B-Instruct × Apple M4 Max (128GB Unified)

Quantization Format Core / Emb BPW Weights (GiB) KV Cache (8K) Total VRAM 1x Apple M4 Max (128GB Unified) (128GB) Decode / Prefill Min GPUs
FP16 / BF16 (Unquantized) 16 / 16 754.37 GB 3.94 GB 758.82 GB Nein (+630.8GB) ~1.2 / 45 tok/s 6x
FP8 (W8A8 / E4M3) 8.25 / 8.5 389.1 GB 3.94 GB 393.55 GB Nein (+265.6GB) ~1.2 / 45 tok/s 4x
GGUF Q8_0 (8.50 bpw) 8.5 / 8.5 400.76 GB 3.94 GB 405.21 GB Nein (+277.2GB) ~1.2 / 45 tok/s 4x
GGUF Q6_K (6.56 bpw) 6.56 / 6.56 309.29 GB 3.94 GB 313.74 GB Nein (+185.7GB) ~1.2 / 45 tok/s 3x
GGUF Q5_K_M (5.69 bpw) 5.69 / 6.56 268.7 GB 3.94 GB 273.15 GB Nein (+145.1GB) ~1.2 / 45 tok/s 3x
GGUF Q4_K_M / AWQ (4.83 bpw) 4.83 / 6.56 228.57 GB 3.94 GB 233.02 GB Nein (+105.0GB) ~1.2 / 45 tok/s 2x
GGUF IQ4_XS (4.25 bpw) 4.25 / 5.5 200.99 GB 3.94 GB 205.44 GB Nein (+77.4GB) ~1.2 / 45 tok/s 2x
GGUF Q3_K_M (3.91 bpw) 3.91 / 5 184.88 GB 3.94 GB 189.34 GB Nein (+61.3GB) ~1.2 / 45 tok/s 2x

Dieses Modell auf anderen GPUs testen

Llama-3.1-405B-Instruct on NVIDIA RTX 5090 (32GB)Llama-3.1-405B-Instruct on NVIDIA RTX 4090 (24GB)Llama-3.1-405B-Instruct on NVIDIA RTX 5080 (16GB)Llama-3.1-405B-Instruct on NVIDIA RTX 4080 Super (16GB)Llama-3.1-405B-Instruct on NVIDIA RTX 4070 Ti Super (16GB)Llama-3.1-405B-Instruct on NVIDIA RTX 3090 (24GB)Llama-3.1-405B-Instruct on NVIDIA RTX 4060 Ti 16GB (16GB)Llama-3.1-405B-Instruct on NVIDIA RTX 3060 12GB (12GB)Llama-3.1-405B-Instruct on NVIDIA RTX 6000 Ada (48GB)Llama-3.1-405B-Instruct on NVIDIA RTX A6000 (48GB)

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