AMD Confirms Tonga Can Support 384 Bit Memory Bus
Since the original Tonga GPU came out in September 2014, we’ve known it was a cut down version of the fully-fledged Tonga GPU. When the R9 380X was still behind closed doors, many thought we’d finally witness the 384 Bit-memory bus incarnation of Tonga , but alas, it was not to be as the “fully” unlocked Antigua XT (TongaXT) chip was still sporting a 256-bit bus.
- You’ll Be Able To Play (Expensive) PS2 Games On Your PS4 Now | 2 months ago
- Jessica Jones Disempowers Its Male Characters And The Effect Is Refreshing | 2 months ago
- Hell Is 30 000 Deathclaws Tearing Through Boston And It’s Glorious | 2 months ago
- Sony Santa Monica Is Teasing Something Truly Strange | 2 months ago
However, a report from PCPerformance, who spoke to Raja Koduri, has confirmed that the Tonga GPU is capable of supporting a 384-bit memory bus, but that they could not find an adequate price-performance ratio. This basically means it may have been to expensive to produce, with limited gains, or it may have actually taken sales away from the R9 390. Either case, the decision was made to hobble the core with a 256-bit bus.
The Tonga architecture is already over a year old, so it’s very unlikely AMD will introduce another card into the lineup under the R9 3XX series. A wandering mind might think that AMD may keep Tonga as a lower order card for release next year alongside Arctic Islands, as another rebranded architecture, but with an upgraded memory bus. In effect it’s like having a “free” card in their pocket, to use if they need to plug any holes in the market for when Arctic Islands release next year. What does suck is that current owners of the R9 380X know that under the hood they could have a 384-bit memory bus card. It would have been very interesting to see how a Tonga GPU with a 384 bit memory bus might have performed in the current market.