Builds / 2x RTX 5070 Ti 16 GB
Dual RTX 5070 Ti on Ryzen 9 9900X (capy-flash maintainer rig)
Source: github.com ↗📏 How measured: reported by the original source; RigBase re-checked the numbers at that source
- GPU(s)
- 2x RTX 5070 Ti 16 GB
Amazon · eBay (used) · Newegg - VRAM / unified memory (GB)
- 32
- CPU
- AMD Ryzen 9 9900X (12 cores)
Amazon · eBay (used) · Newegg - Motherboard
- not stated
- RAM
- 96 GB DDR5-5600
Amazon · eBay (used) · Newegg - PSU
- not stated
- Other
- PCIe 5.0 x8+x8, no P2P; Ubuntu, CUDA 13.1
- Reported total cost
- not stated
- Power
- not stated
Measured speed (generation tokens/sec)
| Model | Quant | Engine | tok/s | Details |
|---|---|---|---|---|
| Qwen3.8 Flash-Next | GSQ-RCO (64 GB edition) | capy-flash v0.7.0, 2 GPUs, agentic decode | 182 | 📏 Maintainer/user decode tok/s from the capy-flash README |
| Qwen3.8 Flash-Next | NVFP4 | capy-flash v0.6.0, 2 GPUs, agentic decode | 155 | 📏 Maintainer/user decode tok/s from the capy-flash README |
| Qwen3.8 27B | 3-bit GSQ | capy-flash (1 GPU), MTP, decode at 8k prompt | 139 | ⚡ spec-decode (MTP)context: 8k prompt📏 Maintainer/user decode tok/s from the capy-flash README |
| Qwen3.8 27B | 3-bit GSQ | capy-flash, 2 GPUs, MTP, decode at 8k prompt | 230 | ⚡ spec-decode (MTP)context: 8k prompt📏 Maintainer/user decode tok/s from the capy-flash README |
Benchmarks section of the capy-flash README, measured by the maintainer on his own machine. The README also lists LocalMaxxing reasoning-v1 prompt figures (234 tok/s Flash-Next 64 GB, 288 tok/s 27B on 2 GPUs), which are higher than the decode figures used here. Found via localmaxxing (discovery only); numbers re-checked at the original source on 2026-10-24.
Current GPU street price (estimate, not the builder's cost)
New retail prices in Germany incl. VAT; used cards are often much cheaper. Prices change daily.
- 2× RTX 5070 Ti: ≈€1,245 each (≈$1,395), new, approx. price as of 2026-10-24, lowest listing on billiger.de (PNY GeForce RTX 5070 Ti 16 GB (listed as "GDDR6"))
New retail prices in Germany incl. VAT; used cards are often much cheaper. Prices change daily.
Source: https://github.com/ValerioDolci/capy-flash
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 5070 Ti run Qwen3.8 27B? · Can RTX 5070 Ti run Qwen3.8 27B? · Can 2x RTX 5070 Ti run Qwen3.8 Flash-Next?