AMD's RX 7900 GRE is coming to China, but what's under the hood?

pcgamer.com:

A couple days ago, news came through that AMD and its partners were preparing a limited edition graphics card for the Chinese market. The Radeon RX 7900 GRE (Golden Rabbit Edition) is a limited edition card released to celebrate the year of the rabbit. The RX 7900 GRE looks more than just an RX 7900 XT variant though. In fact it appears to be a new model, and an interesting one at that.

According to a picture of a Sapphire box, the card is confirmed to feature 16GB of GDDR6 memory and very likely a 256-bit bus. My first thought was that the GRE uses the flagship Navi 31 GPU. Effectively being a 5376 shader RX 7900 XT with two of its six memory controller dies disabled. 

That would make sense given the RX 7900 XTX has all six MCDs enabled with 24GB of VRAM and a 384-bit bus, while the RX 7900 XT has one disabled, giving it 20GB or VRAM and a 320-bit bus.

However, an analysis by Videocardz using pictures sourced from I won't call it X Twitter user @wnxod indicates the RX 7900 GRE isn't using the Navi 31, but rather something different. This is due to the significantly different profile of the GPU package and component positioning at the rear of the card.

So what is it? Of course, I don't know but I sure do love to speculate!

The first candidate would be the long gestating Navi 32, but I can't imagine why AMD would label it as a 7900 series card, when it would make more sense to call it the RX 7800 or 7800 XT. Also the TDP at 300W is too high for what would be a third tier card. 

Something in the 250W range would be easier to accept, along the lines of the RX 6800, but even at 250W the card would trail the power efficiency of Nvidia's RTX 4070 by a long way.

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