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Qwen 35B-A3B: 26 t/s on 8GB Laptop at 100K Context

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๐Ÿฆ™Read original on Reddit r/LocalLLaMA

๐Ÿ’ก26 t/s for 35B MoE at 100K ctx on 8GB RTX 4060 laptopโ€”low-VRAM breakthrough

โšก 30-Second TL;DR

What Changed

26.18 t/s generation, 330.69 t/s prompt at 100K context

Why It Matters

Proves viable long-context inference on consumer 8GB GPUs, ideal for privacy-sensitive local runs. Challenges assumptions on VRAM limits for 35B MoE models.

What To Do Next

Test Qwen3.5-35B-A3B GGUF on your 8GB GPU with llama.cpp flash-attn enabled.

Who should care:Developers & AI Engineers

Key Points

  • โ€ข26.18 t/s generation, 330.69 t/s prompt at 100K context
  • โ€ขllama.cpp with flash-attn, -ngl 99, -ncmoe 35 on RTX 4060 8GB
  • โ€ข34.93 t/s at 5K context drops linearly to 26 t/s at 100K
  • โ€ขLenovo laptop: i7-14000HX, 64GB DDR5 RAM
  • โ€ขUnsloth quantized GGUF model

๐Ÿง  Deep Insight

Background and context from public sources โ€” not the original article. 7 sources cited.

๐Ÿ”‘ Enhanced Key Takeaways

  • โ€ขQwen3.5-35B-A3B is a native vision-language model supporting text and image inputs with a native context length of 262,144 tokens, extensible to over 1 million tokens[1][3][4].
  • โ€ขModel architecture features a hybrid design with 40 layers, hidden dimension of 2048, 256 Mixture-of-Experts (8 routed + 1 shared activated), and Gated Delta Networks for efficient inference[1].
  • โ€ขOn high-end GPUs like RTX 3090/4090, users report 60-100+ t/s generation speeds due to only ~3B active parameters per token in its MoE setup[2].
  • โ€ขReleased on February 24, 2026, it achieves strong benchmarks like 84.5% on GPQA and 37.1 Intelligence Index score[4].
๐Ÿ“Š Competitor Analysisโ–ธ Show
FeatureQwen3.5 27B (Dense)Qwen3.5 35B-A3B (MoE)
Total Parameters27 Billion35 Billion
Active Parameters27 Billion~3 Billion
Tokens Per Second (RTX 3090)15โ€“25 t/s60โ€“100+ t/s
VRAM Requirement (Q4)~16โ€“18 GB~20โ€“22 GB
Best ForComplex Coding, LogicFast Chat, Agents[2]

๐Ÿ› ๏ธ Technical Deep Dive

  • โ€ขTotal parameters: 35B, active parameters: ~3B; hidden dimension: 2048; token embedding: 248,320 (padded)[1][2].
  • โ€ขArchitecture: 40 layers in layout 10 ร— (3 ร— (Gated DeltaNet โ†’ MoE) โ†’ 1 ร— (Gated Attention โ†’ MoE)); Gated DeltaNet uses 32 linear attention heads for V and 16 for QK[1].
  • โ€ขGated Attention: 16 heads for Q, 2 for KV; head dimension 256; Rotary Position Embedding dimension 64; Mixture-of-Experts: 256 experts, 8 routed + 1 shared activated; expert intermediate dimension 512[1].
  • โ€ขMultimodal capabilities: Unified vision-language foundation via early fusion training on multimodal tokens; supports text/image/video input, text output[1][4].
  • โ€ขContext: 262,144 tokens natively, extensible to 1,010,000; trained with multi-step MTP[1][3][4].

๐Ÿ”ฎ Future ImplicationsAI analysis grounded in cited sources

MoE architectures like A3B will dominate consumer-grade local inference by reducing VRAM needs while maintaining high speeds.
Activation of only ~3B parameters out of 35B enables 60-100+ t/s on consumer GPUs like RTX 3090, far exceeding dense models of similar intelligence[2].
Qwen3.5-35B-A3B enables real-time agentic workflows on laptops via 5x throughput gains.
Generation completes long paragraphs in <3 seconds versus 10-20 for dense equivalents, ideal for interactive applications[2].

โณ Timeline

2026-02
Qwen3.5 series release including 35B-A3B model with hybrid MoE architecture
2026-02-24
Official release date of Qwen3.5-35B-A3B on Hugging Face with model weights and specs
๐Ÿ“ฐ

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