Razer Blade 15 mid 2019 with Razer Core X Chroma and RTX 5070 | Razer Insider
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Razer Blade 15 mid 2019 with Razer Core X Chroma and RTX 5070

  • October 30, 2025
  • 1 reply
  • 55 views

So I purchased a razer core X chroma and a RTX 5070 card and the performance is terrible. 
I assume this is because of the thunderbolt 3 connection that is limiting the bandwidth? 
Is there anything I can do to make this combination work.

Frame rate graphic quality and everything is just way worse with the EGPU and the 5070 compared to the on board GTX 1660 TI.

1 Reply

Ishmael_Barre
  • Insider Mini
  • February 6, 2026

I got the core x v2 and with a pny 5070oc, corsair rm850e and the razer blade 15 1660ti base model 2020 doesn’t even detect the gpu. I pray razer fixes these issues