Dual RTX PRO 4000 Blackwell on Threadripper PRO 5975WX
| GPU(s) | 2x RTX PRO 4000 Blackwell 24 GB Amazon · eBay (used) · Newegg |
|---|---|
| VRAM / unified memory (GB) | 48 |
| CPU | AMD Threadripper PRO 5975WX Amazon · eBay (used) · Newegg |
| Motherboard | |
| RAM | |
| PSU | |
| Other | PCIe 4.0 x16; Proxmox LXC |
| Reported total cost | |
| Power | 145 W per card |
Measured speed (generation tokens/sec)
📏 How measured: reported by the original source; RigBase re-checked the numbers at that source
| Model | Quant | Engine | tok/s | Details |
|---|---|---|---|---|
| Qwen3.8 Flash-Next | GSQ-RCO (64 GB edition) | capy-flash v0.7.1, prose decode (low end of 100-114) | 100 | prefill 3,300 tok/s📏 User-reported (issue #22); low end of the stated prose range |
User jikdoc, issue #22 (2026-10-23): prose ~100-114 tok/s, reasoning ~140-155 tok/s, 40k-token prefill ~3,300 tok/s. tps is the conservative low end of the prose range. RAM not stated. Found via localmaxxing (discovery only); numbers re-checked at the original source on 2026-10-24.
Source: https://github.com/ValerioDolci/capy-flash/issues/22
Blank fields = not stated in the source. We never estimate build data; GPU street prices above are separately sourced and dated.
Rent before you buy: try this model on a cloud GPU for a few dollars first: Runpod (referral link; sign up with Google to get the new-user bonus)
Quick answers: Can 2x RTX PRO 4000 Blackwell run Qwen3.8 Flash-Next?