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+--- Thread: synthetic data for support bots on 7900 XTX (/showthread.php?tid=771)
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synthetic data for support bots on 7900 XTX - orbitgarden - 10-05-2026
I'm trying to sanity-check my setup.
I'm mostly working with Gemma in MLX on mini PC. The part I'm trying to understand is quant drift.
Would appreciate practical advice rather than theory.
Re: synthetic data for support bots on 7900 XTX - mangovault67 - 10-07-2026
Quote:I'm trying to sanity-check my setup.
A couple questions before I guess too hard. What model, what runtime, and roughly what context size?
Re: synthetic data for support bots on 7900 XTX - forgemixer - 10-10-2026
What worked for me was pretty simple. Before rebuilding anything, I'd test one clean baseline with Llama and compare from there. Once you know the plain path works, then add the faster path back in piece by piece.
Re: synthetic data for support bots on 7900 XTX - routecraft - 10-10-2026
I tested this tonight. On M3 Max with PyTorch, I saw basically the same behavior. The main thing that moved was latency, not quality.
Re: synthetic data for support bots on 7900 XTX - vramridge - 10-11-2026
I don't think that's the whole story. I get why that seems right, but on M3 Max the bottleneck felt elsewhere.
Re: synthetic data for support bots on 7900 XTX - phaseport36 - 10-11-2026
Good point. The pattern around prefix caching has been pretty similar for me. Worth rechecking your defaults though, because one bad assumption can make the rest of the thread look confusing.
Re: synthetic data for support bots on 7900 XTX - audioforge - 10-12-2026
Good point. I ended up in about the same place using Ollama. Worth rechecking your defaults though, because one bad assumption can make the rest of the thread look confusing.
If you post your exact settings, people here can probably narrow it down pretty fast.
Re: synthetic data for support bots on 7900 XTX - routecraft - 10-15-2026
Interesting, I hadn't tried that. The pattern around KV cache pressure has been pretty similar for me. I got better results once I stopped chasing one metric and just looked at whether the workflow felt usable.
Re: synthetic data for support bots on 7900 XTX - orbitgarden - 10-18-2026
I think the bottleneck is somewhere else. I wouldn't optimize around that first. On my side the bigger swing came from the runtime and not the model.
Re: synthetic data for support bots on 7900 XTX - routecraft - 10-18-2026
Maybe, but I had the opposite result. The reported numbers can look compelling, but in ordinary usage I didn't see the same benefit. Worth testing the simpler explanation before adopting the more interesting one.