Back at CES 2016, Razer announced their Core Thunderbolt 3 external graphics (eGFX) chassis. Built around the new Thunderbolt 3 standard and its long-awaited official support for external video cards, the Razer Core is the first eGFX chassis to hit the market. We got a bit more information about it with last week’s AMD XConnect announcement, and now today at GDC Razer is releasing the full details on functionality, compatibility, and availability.

Jumping right into things, the Razer Core is what can be considered a full size eGFX chassis. The unit is large enough to accommodate a double-wide video card up to 12.2 inches long, which covers almost every video card on the market. The only notable exceptions here are cards that use external radiators (e.g. Radeon R9 Fury X) and the small number of ultra-high-end triple-wide card designs such as some of MSI’s Lightning cards. The toolless design is able to handle both open air and blower type video card coolers, however given its smaller size relative to a full PC case, I think it’s going to be worth looking into just how well open air cards do.

Razer Core Thunderbolt 3 eGFX Chassis Specifications
Max Video Card Size Double-Wide, 12.2" Long
(310 x 152 x 44mm)
Max Video Card Power 375W
Connectivity 4x USB 3.0
1x Gigabit Ethernet
Laptop Charging via Thunderbolt 3
Chassis Size 4.13 x 13.9 x 8.66 inches
(105 x 353 x 220mm)
Internal PSU 500W
System Requirements Thunderbolt 3 eGFX Certified PC
Thundebolt 3 w/Active Cable
Windows 10
Shipping Date April 2016
Price $499 ($399 w/Razer laptop)

The chassis itself measures 4.13” x 13.9” x 8.66” and contains an internal 500W PSU, with Razer rating it to drive up to a 375W video card. At 10.89lbs it is technically portable, though clearly not ideal for the task given its handle-less design. Rather Razer intends this to be a fixed docking station for laptop users, as demonstrated both by the additional ports made available on the Core – 4x USB 3.0 Type-A and a gigabit Ethernet port – and by the fact that it’s capable of charging laptops over its Thunderbolt 3 connection.

The Core is the first of what we expect will be several TB3 eGFX chassis. As we briefly mentioned in our AMD XConnect overview, the Core is essentially the pathfinder product for the TB3 eGFX standard, with Intel, AMD, and Razer working together to put together the first devices and validate them. Consequently the Core is so far only validated to work with two laptops – Razer’s Blade Stealth and new 2016 Blade – however it should work with any future laptops that are also eGFX certified.

As for video card compatibility, while the Core was initially developed with Intel and AMD, Razer has confirmed that the chassis does support both AMD and NVIDIA video cards. The full compatibility list is posted below, but for AMD cards it’s essentially all of their latest generation (290 series and newer) video cards. Meanwhile on the NVIDIA side all of the company’s Maxwell 1 and Maxwell 2 cards are supported, starting with the GTX 750 Ti. Though given the price of the Core, it goes without saying that the expectation is that it will be paired up with high-end video cards as opposed to lower-end models.

Razer Core Video Card Compatibility List
Radeon R9 Fury GeForce GTX Titan X
Radeon R9 Nano GeForce GTX 980 Ti
Radeon R9 300 Series GeForce GTX 980
Radeon R9 290X GeForce GTX 970
Radeon R9 290 GeForce GTX 960
Radeon R9 280 GeForce GTX 950
  GeForce GTX 750 Ti

While the Core supports both AMD and NVIDIA cards, how well each brand is supported is looking a bit hazy. As part of the eGFX development cycle, AMD’s drivers are fully capable of and validated for eGFX plug ‘n play operation, allowing Windows to gracefully handle losing the external GPU with both planned and accidental disconnects. In the case of an accidental disconnect, Windows will stay up, while applications using the GPU may crash. However NVIDIA’s drivers have not yet been validated for plug ‘n play operation, and it sounds like at this moment NVIDIA is still hammering out the final bugs. That said, NVIDIA has committed to having drivers ready by the time the Core ships in April, so we'll have to see where things stand next month.

Finally, let’s talk about availability and pricing. Razer will begin taking pre-orders for the Core tonight through their website, with the chassis set to ship in April. As for pricing, the first eGFX chassis on the market will not come cheap: Razer is setting the base price on the chassis at $499, and after the cost of a high-end video card to put in the Core, we’re looking at a total price tag of $1000 or more. However Razer is offering a $100 discount on the Core if it’s purchased alongside a Razer Blade or Blade Stealth laptop – bearing in mind that these are the only two laptops eGFX certified at this time in the first place – which brings the effective cost down to $399. Razer also notes that this offer is also retroactive for customers whom already purchased a Blade Stealth earlier this year, as the ultrabook and the Core were announced together at CES and the company doesn’t want to penalize early buyers who were intending to grab the Core anyhow.

Gallery: Razer Core

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  • gw74 - Sunday, March 20, 2016 - link

    what dock? This weighs 11lb. It is not a dock. Alienware Graphics Amplifier $200.
  • osxandwindows - Wednesday, March 16, 2016 - link

    Question, If i plug any Usb devices into this thing, will the video card take a performance hit?
  • frostyfiredude - Wednesday, March 16, 2016 - link

    Sure, but unless you're actively transferring a lot of data from multiple SSDs simultaneously it shouldn't be noticeable. Its 40Gb/s for the TB3 interface; plug a HDD for game data, ethernet cable and a KB/mouse in and you'll consume maybe 1Gb/s. Just don't stick the eGPU as part of a daisy chain and it should be great.
  • ltcommanderdata - Thursday, March 17, 2016 - link

    Do Thunderbolt controllers include built-in PCIe switches? So the Gigabit ethernet and USB controllers would not be taking 1 PCIe lane each permanently leaving only 2 lanes for the GPUs, but instead a PCIe switch would share bandwidth amongst devices dynamically?
  • repoman27 - Thursday, March 17, 2016 - link

    The PCIe switch in the Thunderbolt controller only supports 1 x4 or 4 x1 connections AFAIK (i.e. it's an 8-lane, 5-port switch counting both up and downstream connections). The controller that Razer is using here is probably a 4-channel version which does have a built-in USB 3.1 xHCI though. I'm guessing due to the single Thunderbolt / USB Type-C connector that they've connected the second Thunderbolt port internally to a USB 3.0 hub and USB 3.0 GbE NIC. A lot of these external Thunderbolt chassis do have PCIe switches in them though, so there may well be one here.
  • osxandwindows - Wednesday, March 16, 2016 - link

    The price on this thing is pretty sweet for what you get. A 500w power supply, additional usb ports, and ethernet.
  • serendip - Wednesday, March 16, 2016 - link

    I thought this was crazy expensive but then again, it's a good solution for laptop owners who don't have or want a desktop. It could also stretch the usable life of a laptop by a few years: GPU capability is more important than CPU power for gaming and graphics work, so it's easier and cheaper to swap a graphics card than it is to buy a new laptop. Too bad it won't work on laptops with TB2 and earlier ports though.
  • homedesign - Thursday, April 20, 2017 - link

    you may believe that egfx will save you money in the long run based on only having to replace the graphics card to update your obsolete pc. but remember architecture changes as quickly as everything else. 16x PCIE card architecture is about to be replaced, so... your egfx box is only as new as the cards it can accept.
  • zodiacfml - Thursday, March 17, 2016 - link

    Pricey. One can build a mini-itx for the price and just install the video card there. I reckon, a solution exists where one can connect a PC device to that mini-itx then display the output.
  • lordmocha - Thursday, March 17, 2016 - link

    "At 10.89lbs it is technically portable, though clearly not ideal for the task given its handle-less design."

    What? You can clearly see a handle at the back in the pictures.

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