AMD Tonga GPU Packs 384-bit Bus Interface, But Couldn’t Find a “Perfect Perf./Price Slot”
It was a year ago when it was first reported that AMD’s Tonga XT GPU would have a 384-bit memory bus, and since then reports of the upcoming GPU have consistently referenced the wider bit bus. However, these reports were never officially confirmed until today.
AMD’s VP of Radeon Technologies Group Raja Koduri has confirmed the Tonga GPU indeed rocks a 384-bit bus, reports Ryan Shrout from PCPerspective, though the GPU was never enabled for any products by the company. That is because the chip maker was never be able to find the right price-performance combination, Shrout notes.
The Tonga core has seen a lot of delay in the desktop market. Earlier, it was rumored that the Radeon R9 380X will get the flagship Tonga GPU as revealed in a die shot of the chip. While the R9 380X did launch with a full Tonga GPU, the card didn’t feature that 384-bit bus. So the question still remains whether we would ever see a Tonga GPU with the full bus width?
Well, fairly speaking, the chances are quite low, as with the release of R9 380X graphics card, the price to performance gap isn’t as wide in AMD’s lineup that it would need to introduce a new card with a wider bus.
While there’s strong possibility that we might not see any new Tonga 384-bit cards in the 300 series lineup, experts are hopeful that they will debut with the Radeon 400 series lineup. Based on the 14nm FinFET technology, the next-gen GPU family is scheduled for launch in summer 2016.