Sixteen-core AMD Opteron in the works

By , source: Planet 3DNow!, CPU-World, AMD [PDF]

AMD has published a document which reveals that the chip manufacturer is currently working on a new Opteron-processor, which features eight modules with two cores each. This means we're dealing with sixteen cores on a single die. In addition to the Streamroller-cores, the Uncore has also been integrated on the die. 

Although AMD already has Opteron chips with sixteen cores, the current models consist of two separate chips that communicate with one another through HyperTransport. The figure below shows that the new models have all eight modules on a single die, with a System Request Interface (SRI) taking care of communication between the cores, memory controller, PCI-Express 3.0 lanes and HyperTransport bus.

In the document AMD mentions the 'Family 15h processor model 30h-Fh', indicative of Bulldozer-modules and Steamroller-cores. A roadmap tells us that the new processors are codenamed Warsaw, and will be produced using 32 nm transistors.

Of two models, both the product code and RRP are already known; the OS6338WQTCGHK and OS6370WQTGGHK cost respectively 421 and 664 USD. A number of specifications is revealed by the product code; 'WQ' indicates that the TDP will be lower than that of the current 6300 series. 'TCG' means that the processors will be based on Socket G34, have 12 cores and 16 MB of L3 cache memory. 'HK' stands for Piledriver and OR-C0.

Based on this information, we expect the Warsaw 6338 to be a 12-core processor based on socket G34 and with a 99 W TDP. The Warsaw Opteron 6370 has sixteen cores, 16 MB of L3 cache memory, a 99 W TDP and a G34 socket. It's expected that the processors will be clocked around 2.5 GHz.

Image source: Bottom Line

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