DeepSeek R1 Distill Qwen 32B on H20 141GB HBM3e (141GB) — VRAM, KV Cache & Throughput

DeepSeek R1 Distill Qwen 32B (32.76B total, 32.76B active, Dense GQA) uses 18.49 GiB of 4-bit weights (Q4_K_M), requiring 21.05 GiB total at 8K context and 27.05 GiB at 32K on H20 141GB HBM3e (~139.3 tok/s decode).

Interactive Sizing Workbench

Full Compatibility Report →
141 GB · 4800 GB/s
Fits with Safe Headroom
Measured GGUF shard size HF config.json ↗
Memory Allocation Breakdown (GiB) 21.05 GiB (22.6 GB) / 141 GiB (15%)
Model Weights: 18.49 GiB KV Cache & State: 2 GiB Runtime & Activation Buffers: 0.56 GiB System RAM Offload: 0 GiB
Required GPU Memory
21.05 GiB
22.6 GB (decimal)
Usable Hardware Memory
133.9 GiB
141 GB (physical)
Safe Headroom
+112.85 GiB
15% utilization
Est. Decode Throughput
~139.3 tok/s
32.76B active params
Est. Prefill Throughput
~2349 tok/s
4K Prompt TTFT: ~1744 ms
Est. Cost / 1M Tokens
$0.38
Dense GQA · MIT

Recommended Hardware for Current Configuration

Best Single GPU
Arc Pro B60 24GB (24GB)
~$599
Best Value / Used GPU
RTX 3090 (24GB)
~$750
Apple Unified Memory
Ryzen AI Max+ 395 128GB
~$1,999
Cloud From
Vast.ai · $0.19 / hr
1x RTX 3090

Production Launch Commands

llama.cpp (GGUF)
llama-server -hf unsloth/DeepSeek-R1-Distill-Qwen-32B-GGUF:Q4_K_M \
  --ctx-size 8192 -ngl 999 --flash-attn
vLLM
vllm serve deepseek-ai/DeepSeek-R1-Distill-Qwen-32B \
  --max-model-len 8192 --gpu-memory-utilization 0.92
Live Token Speed Simulator (TTFT ~1744ms · ~139.3 tok/s)
[DeepSeek R1 Distill Qwen 32B · 21.05 GiB] allocated on target GPU. Prefill completed in TTFT window; streaming autoregressive tokens at memory-bandwidth-bound rate...

Cloud GPU Comparison & Rent-vs-Buy TCO

Verified public rates across RunPod, Vast.ai, Vultr, and DigitalOcean.

Verified: 2026-11-04
Purchase break-even
~26.6 months
Est. local power: $4.26 / mo
Provider Recommended Instance Total VRAM Hourly Rate Monthly at Selected Hours Billing Mode Deploy
RunPod 1x RTX 3090 (Community Cloud) 24 GB $0.22 / hr $26.75 / mo Per-second Deploy GPU ↗
Vast.ai 1x RTX 3090 (Verified Host) 24 GB $0.19 / hr $22.98 / mo Spot / On-demand Deploy GPU ↗
Vultr ($300 Free Credit*) 1x L40S 48GB (Dedicated Instance · $300 Credit*) 48 GB $1.67 / hr $203.19 / mo Hourly Deploy GPU ↗
Vultr Cloud GPU 1x L40S 48GB (Dedicated Instance) 48 GB $1.67 / hr $203.19 / mo Hourly Deploy GPU ↗
DigitalOcean 1x RTX 6000 Ada (Dedicated Instance) 48 GB $1.57 / hr $190.91 / mo Per-second Deploy GPU ↗

Rates reflect public listings on the verification date and fluctuate with regional inventory.

Fine-Tuning VRAM Requirements (QLoRA / LoRA / Full) — DeepSeek R1 Distill Qwen 32B

QLoRA (4b) Fits with Safe Headroom
24.19 GiB
Model Weights: 18.49 GiB · Gradients + Optimizer: 4.59 GiB · Act: 1.11 GiB
Recommended GPU: Radeon AI PRO R9700 32GB (32GB)
LoRA (16b) Fits with Safe Headroom
69.71 GiB
Model Weights: 61.02 GiB · Gradients + Optimizer: 7.21 GiB · Act: 1.48 GiB
Recommended GPU: RTX PRO 6000 Blackwell (96GB)
Full BF16 Exceeds Available GPU Memory
252.78 GiB
Model Weights: 61.02 GiB · Gradients + Optimizer: 189.16 GiB · Act: 2.6 GiB
Recommended GPU: Instinct MI355X 288GB (288GB)

Engineering Sizing Notes & Optimization Playbook

Quick Hardware Verdict

H20 141GB HBM3e (141GB physical, 133.9 GiB usable) runs 4-bit (Q4_K_M) DeepSeek R1 Distill Qwen 32B at 8K context using 21.05 GiB with 112.85 GiB of safe headroom (~139.3 tok/s single-stream decode).

KV Cache & Runtime Tuning

DeepSeek R1 Distill Qwen 32B uses Dense GQA (32.76B total, 32.76B active per token). Moving from 8K to 32K context expands FP16 KV cache from 2 GiB to 8 GiB; enabling 8-bit KV cache (llama.cpp -ctk q8_0 -ctv q8_0 or vLLM --kv-cache-dtype fp8) saves 4 GiB at 32K (reducing total VRAM to 23.05 GiB).

VRAM Scaling Across Context Windows (4K to 128K, 4-bit Weights)

DeepSeek R1 Distill Qwen 32B VRAM scaling from 4K to 128K context (4K: 20.05 GiB, 8K: 21.05 GiB, 32K: 27.05 GiB, 128K: 51.05 GiB) 4K 20.05 GiB (KV 1 GiB) 8K 21.05 GiB (KV 2 GiB) 32K 27.05 GiB (KV 8 GiB) 128K 51.05 GiB (KV 32 GiB) H20 141GB HBM3e (141GB)
Model weights remain constant while attention KV cache grows with context length and batch size.

Quantization Precision & Memory Matrix — DeepSeek R1 Distill Qwen 32B @ 8K

Quantization Format Weights (GiB) KV Cache Total VRAM (GiB) Decode Speed Compatibility (H20 141GB HBM3e) Recommended GPU Data Source
Native Weights (BF16 / FP8 / MXFP4 — Lossless) (BF16) 61.02 GiB 2 GiB 63.58 GiB (68.27 GB) ~46.6 tok/s Fits with Safe Headroom RTX PRO 6000 Blackwell (96GB) Official checkpoint size
FP8 / GGUF Q8_0 (8-bit — Near-Lossless) (Q8_0) 32.43 GiB 2 GiB 34.99 GiB (37.57 GB) ~84.3 tok/s Fits with Safe Headroom A40 48GB (48GB) Measured GGUF shard size
GGUF Q6_K (6-bit — High Precision) (Q6_K) 25.04 GiB 2 GiB 27.6 GiB (29.64 GB) ~106.6 tok/s Fits with Safe Headroom Radeon AI PRO R9700 32GB (32GB) Measured GGUF shard size
GGUF Q5_K_M (5-bit — Balanced) (Q5_K_M) 21.66 GiB 2 GiB 24.22 GiB (26.01 GB) ~121.3 tok/s Fits with Safe Headroom Radeon AI PRO R9700 32GB (32GB) Measured GGUF shard size
Q4_K_M / UD-Q4_K_XL / AWQ (4-bit — Recommended) (Q4_K_M) 18.49 GiB 2 GiB 21.05 GiB (22.6 GB) ~139.3 tok/s Fits with Safe Headroom Arc Pro B60 24GB (24GB) Measured GGUF shard size
GGUF IQ4_XS (4.25-bit — Compact) (IQ4_XS) 16.44 GiB 2 GiB 19 GiB (20.4 GB) ~154 tok/s Fits with Safe Headroom Arc Pro B60 24GB (24GB) Config-derived formula
GGUF Q3_K_M (3-bit — Low VRAM) (Q3_K_M) 14.84 GiB 2 GiB 17.4 GiB (18.68 GB) ~167.9 tok/s Fits with Safe Headroom Arc Pro B60 24GB (24GB) Measured GGUF shard size
GGUF UD-Q2_K_XL (2-bit — Extreme MoE) (UD-Q2_K_XL) 10.81 GiB 2 GiB 13.37 GiB (14.36 GB) ~217.4 tok/s Fits with Safe Headroom RTX 4060 Ti 16GB (16GB) Config-derived formula

Technical Specifications & FAQ

Does DeepSeek R1 Distill Qwen 32B fit on H20 141GB HBM3e (141GB)?

In 4-bit (Q4_K_M) at 8,192 context, DeepSeek R1 Distill Qwen 32B requires 21.05 GiB total GPU memory (18.49 GiB weights + 2 GiB KV cache + 0.56 GiB runtime buffers) against 133.9 GiB usable on H20 141GB HBM3e, delivering ~139.3 tok/s decode.

How much VRAM does DeepSeek R1 Distill Qwen 32B need at 32K context?

At 32,768 context tokens, DeepSeek R1 Distill Qwen 32B (Dense GQA) allocates 8 GiB for KV cache and state, bringing total 4-bit VRAM to 27.05 GiB (29.04 GB decimal).

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