Dual R9700 on Asus X570 VIII Motherboard
A user is considering upgrading their single R9700 setup to dual R9700s on a used Asus X570 motherboard, which supports 2 x8 PCIe 4.0 lanes. Their current system uses an AM4 motherboard with 48GB DDR4 RAM, running Qwen3.8 27B Q6 with 110k context. They are weighing this AM4 upgrade against an AM5 upgrade with 32GB RAM for an additional ~1000€, aiming to run larger models or two separate agents. LLMs suggest the AM4 route for now, with Threadripper for future AM5 upgrades.
- Published
- Sep 7, 2026, 09:38
- Source type
- Dev community
- Tier
- Community
- Source status
- Healthy
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More details
I am considering on buying used Asus X570 mobo to upgrade my single R9700 set up to dual R9700. Currently I have single R9700 on ole AM4 mobo with 48GB of DDR4 RAM. Mainly using Qwen3.8 27B Q6 with 110k context on this build. I know that the X570 supports 2 x8 PCIe 4.0 lanes. How would be the performance on this setup? Should I go this route or upgrade to AM5 with 32GB of RAM for extra ~1000€? My main use case would be to either run same models as of now with more context or run two separate agents on two separate GPUs.
Ps. LLMs suggest going this AM4 route and when upgrading to AM5 going directly to threadripper build.