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ENGINEERING COMPUTATIONAL TOOL #24

Llama-3.3 70B High-Efficiency (FP8 Scaled Native Hopper) on NVIDIA B200 192GB Blackwell VRAM & Throughput Calculator

Exact VRAM memory allocation, dynamic KV-cache requirements, and tensor parallelism slicing for Llama-3.3 70B High-Efficiency quantized in FP8 Scaled Native Hopper deployed on NVIDIA B200 192GB Blackwell.

Hardware & Deployment Parameters

Billion Params
Tokens
Concurrency
GB
Initializing Scientific Computational Engine...

Engineering Implementation Guidelines

1
Set model parameter size (70B) and verify FP8 Scaled Native Hopper quantization precision.
2
Define production context length in tokens and peak concurrent query concurrency.
3
Evaluate required memory capacity and calculate multi-GPU tensor parallelism scaling across NVIDIA B200 192GB Blackwell nodes.

Frequently Asked Engineering Questions (FAQ)

How much VRAM does Llama-3.3 70B High-Efficiency require in FP8 Scaled Native Hopper?

Uncompressed weights alone consume 70.0 GB. In addition, the KV cache scales with context tokens and concurrency batch size, plus ~1.8 GB CUDA driver overhead.

Can a single NVIDIA B200 192GB Blackwell run this model without Out-Of-Memory (OOM)?

If total weights + KV cache exceeds the 192 GB boundary, Tensor Parallelism (TP) or vLLM PagedAttention multi-GPU sharding across NVLink is required.

How does 4-bit quantization affect inference quality and speed?

Modern AWQ and GPTQ retain >98% perplexity compared to FP16 while halving memory footprint and doubling memory-bandwidth-bound token generation speed.