Keeping track of just what AMD intends to name its Radeon RX Vega graphics cards has been an arduous process. The last we heard from a leak was that AMD was going down the Radeon RX Vega, Nova and Eclipse route, but a new listing suggests we could, in fact, be looking at the Radeon RX Vega XTX, the Radeon RX Vega XT, and the Radeon RX Vega XL.

Confusingly, the Radeon RX Vega XL will be the weakest of the bunch, despite making me think Extra Large, and will feature a cut-down Vega core with 3584 Stream Processors and a TDP of 285W. That’s a ton of wattage, and things don’t get any better for AMD’s more powerful offerings according to 3DCenter’s listings.

The next step up is the AMD Radeon Vega XT,  a full-fat Vega GPU with 4096 Stream Processors and air cooling. It too carries a TDP of 285W.

Lastly, there’s the big daddy, the AMD Radeon Vega XTX, a water-cooled version of the same RX Vega chip. That means 4096 Stream Processors once again, but this time with a 375W TDP to support the liquid cooling system. That compares to a 250W TDP on the GeForce GTX 1080 Ti, guzzling 50% more power. Just to put that in perspective, using the AMD Vega for 6 hours a day here in the UK would cost me £98.56 per year, while the GeForce GTX 1080 Ti would set me back £65.71. Over a three-year lifespan of the graphics card, we’re talking about an extra £100 tacked on the electricity bill.

From the looks of things, every model listed here will have 8GB HBM2 memory, so there’s potentially no 16GB options available at launch whatsoever. In truth, 8GB HBM2 should be plenty, and it’ll help to keep the costs down by opting for the more affordable 4-hi stacks. It’s likely AMD could be saving a 16GB variant for further down the line, possibly as part of a dual-GPU edition. Just thinking about the potential power draw is making me feel a little queasy though.

As it stands, AMD is planning to launch its Radeon RX Vega series during the SIGGRAPH event which starts on July 30th.