In fact, essentially every eGPU on the market uses one of these two chips. The Razer Core V2 that we reviewed in 2018 used two of the previous generation DSL6540 chips which ran at the exact same 40Gbps speed. The chip still supports the full bandwidth of Thunderbolt 3.
The JHL6540 chip is a bit old with Intel now on the 8000 series controllers that support PCIe Gen 4.Īlthough the brains of the Core X are about 5 years old, that's not necessarily a bad thing. That chip supports up to 4 lanes of PCIe Gen 3 traffic, a DisplayPort interface, and an additional port that can carry USB 3.1 Gen 2 or DisplayPort. The Razer Core X specifically uses a JHL6540 Thunderbolt 3 controller. Just two active components and a power supply. There's also a USB-C controller thrown in the mix to manage the connection. They all use an Intel Thunderbolt controller which takes in PCIe signals on one end and spits out Thunderbolt on the other end. The way these devices work is quite simple. Making sense of the Thunderbolt connection There's no vendor lock between Razer laptops and Razer eGPUs, we just happen to be using parts from the same brand to test with today.
Keep in mind that since Thunderbolt and PCIe are both industry standards, you can use any eGPU with any supporting laptop. Of course, you need a compatible laptop to make use of the enclosure, so we'll be using the Razer Book 13 that we recently reviewed. Putting this design into practice, today we'll be taking a look at Razer's Core X external GPU enclosure.
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