Razer Core X Chroma bandwidth dips during games/under load
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Razer Core X Chroma bandwidth dips during games/under load  


Camouflaged Cow
New Member
Joined: 1 year ago

Hey yall,

I've been having a good time with my Razer Core X Chroma on Bootcamp (using a MacBook Pro 15", Mid 2019), but I have been encountering one consistent hurdle I cannot overcome: Why does my bandwidth drop while playing games/under load? I'm also using an EVGA GeForce GTX 1080 FTW.

I've tried a few different things to mitigate the bandwidth hit, including:

  • Unplugging all peripherals from the enclosure (only leaving the power, Thunderbolt 3 cable, and DisplayPort cable to my monitor)
  • Updating the Thunderbolt 3 drivers and PCIe controllers via this guide
  • Closing as many background tasks as possible
  • Disabled my dGPU in Device Manager (Radeon RX Vega 20)

Is there anything I can do to reduce the bandwidth hit I receive, or is that just a result of rendering the workload? I've also taken some screenshots from GPU-Z and CUDA-Z, I hope they help.

I did want to thank yall for being an awesome community and helping me work out so many of the problems I've had, and I wouldn't have made it this far without the help of yall contributing to this excellent website!

This topic was modified 1 year ago

MacBook Pro 15” (Mid 2019) with Bootcamp
Running a GTX 1080 eGPU with a Razer Core X Chroma

Noble Member
Joined: 3 years ago

@camouflaged_cow, bandwidth is measured by sending data to or from the GPU. If the game is sending data to the card, then the benchmark cannot send as much data.


Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case