Just wanted to share a build I am doing for a client. Specs: Threadripper 9970x 128gb DDR5 ECC 5600 4x AMD Radeon R9700 AI Pro 32gb(128gb total VRAM) 1600W PSU(GPUs are undervolted and under 210w each) Engine: using a fork of Radiance to serve Qwen 3.8 Next flash/27b and DSV4 Flash Results: 16 concurrent sessions Qwen 3.8 27b MXFP4 6.3-6.8k aggregate prefill tok/s 900 t/s - 80t/s aggregate decode(range: 4k - 128k context each) Qwen 3.8 Next flash 48K/user | 6,880 tok/s | 538.5 tok/s aggregate prefill/decode 128k/user | 3,050 tok/s | 365 tok/s aggreate prefill/decode BF16 kv for all.   submitted by   /u/sayamss [link]   [comments]