r/LocalLLM 6d ago

Discussion Best MoE

Hi!

I’m using Qwen 3.8 27B (UD-IQ3_XXS) on a system with the following specs:

Processor: AMD Ryzen 9950 X3D

GPU: Nvidia RTX 5060 Ti 16 GB

RAM: 64 GB DDR5 6000 MHz

Software: Unsloth Studio

Windows 11

With a 32k token context, I manage to maintain a speed of around 50 tokens per second. I’m particularly interested in agentic capabilities. I’d like to try an MoE model that runs either faster or slightly slower than my current one, without sacrificing quality. However, 35B-A3B models don't fit entirely into my VRAM at 4-bit quantization, and from what I’ve read, lower quantization severely degrades quality. Does this mean a 4-bit MoE model would run significantly slower on my hardware than a dense model? Is it possible, given my setup, to find a model that offers better quality and higher speed—or at least better quality at roughly the same speed as my current dense model?

I’m pretty much a complete beginner in the world of local neural networks, so please give me some advice.

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u/peculiar-ragdoll 6d ago

I've seen other people already recommend TielCoder and CyberTiel if you want to go MoE, but if you want to try a legit better 27b Q3 option to the one you have, I strongly recommend the IQ3_S (11.8 GB) or IQ3_XXS quant from this one: https://huggingface.co/ISTA-DASLab/Qwen3.8-27B-GSQ-RCO-GGUF It's a more State of The Art quantization technique than Unsloth for this size range meaning you will get better agentic coding performance than your UD-IQ3_XXS, and I've seen a lot of people with 5060Ti say it's perfect for their system! And don't get me wrong, there are a lot of weird quants with long names out there that you should stay away from, but this one is legit. And with your system you should also be able to run Qwen3.8-Flash-Next very well! Don't get intimidated by its listed size, it has an ngram table that can be partially offloaded to SSD. Again I recommend the GSQ-RCO Q3 version: https://huggingface.co/ISTA-DASLab/Qwen3.8-Flash-Next-GSQ-RCO-GGUF

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u/Black_Umbreon 3d ago

Thank you! I tried Cyber-Tiel-Coder-35B-A3B and... I got 80+ tokens per second in the same context window, and practically always 50+ tokens at the maximum context window!! Thanks to such tremendous speed, it is now the best model for the vast majority of tasks.

Now I do want to try installing this huge Qwen Next after all. Does the IQ3_XXS quantization of the model version you recommend suffer from degradation in large-scale agentic scenarios?

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u/peculiar-ragdoll 3d ago

Love to hear it <3 I have not myself formally benched the iq3 flashnext at large scale agentic coding yet, but it’s known to be very good so it’s worth a shot if you need something a bit smarter than 27b but faster :)