A single RTX 5090 reportedly hit 390 tps running Qwen3.8-Flash-Next on a brand-new…
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A single RTX 5090 reportedly hit 390 tps running Qwen3.8-Flash-Next on a brand-new inference engine. Peak? 452 tps Here is the setup 🧠 Qwen3.8-Flash-Next 🔥 125B total / 6B active 🎮 NVIDIA RTX 5090 32GB 💾 128GB DDR5 system RAM 🪟 Windows 11 📚 256K configured context ⚙️ INT8 KV cache Results (decode) 🚀 Infernix + DFlash2 + Q2 → 390 tps ⚡ Strata + MTP + Q2 → 348 tps ⚡ Infernix + native MTP → 304 tps 🟢 NVFP4 configuration → 209 tps 🔵 Qwen FP8 configuration → 60 tps That is a 6.5× difference between the fastest and slowest reported configurations on the same GPU! DAMN! How? Brand new Infernix!
Posted by David Hendrickson (12.8k followers) 11 h ago · 95 likes · 5.5k views · view the original post on X. Kept by the AI Radar as AI infra & evals.
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