Friday, February 12th 2016

AMD "Zen" Processors to Feature SMT, Support up to 8 DDR4 Memory Channels

CERN engineer Liviu Valsan, in a recent presentation on datacenter hardware trends, presented a curious looking slide that highlights some of the key features of AMD's upcoming "Zen" CPU architecture. We know from a recent story that the architecture is scalable up to 32 cores per socket, and that AMD is building these chips on the 14 nanometer FinFET process.

Among the other key features detailed on the slide are symmetric multi-threading (SMT). Implemented for over a decade by Intel as HyperThreading Technology, SMT exposes a physical core as two logical CPUs to the software, letting it make better use of the hardware resources. Another feature is talk of up to eight DDR4 memory channels. This could mean that AMD is readying a product to compete with the Xeon E7 series. Lastly, the slide mentions that "Zen" could bring about IPC improvements that are 40 percent higher than the current architecture.
Source: HotHardware
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130 Comments on AMD "Zen" Processors to Feature SMT, Support up to 8 DDR4 Memory Channels

#126
Super XP
BiggieShadyCan't really say that because IPC is short for instructions per clock, so you can't count in potential clock difference and still call the metric IPC.
Nevertheless, I predict Zen won't be clocked higher than bulldozer (they went up to 5 GHz stock ffs) but much less power hungry and all performance gains will come from extra floating point units, shorter pipeline (lesser branch missprediction penalty), sound cache hierarchy, better instruction scheduler and memory controller.
Fair enough.
Either way, hopefully ZEN pulls a rabbit of it hat an surprises us all.
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#127
Super XP
Hopefully we get some Samples of this Monster Chip that should save this company and bring them back into head strong competition. My PC is dying for a ZEN upgrade.
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#128
Super XP
Just seen it says supports 8 Channels. Does this mean the new ZEN will have Quad Channel Memory Controller or a 8 Channel one? Just Curious.
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#130
ZeDestructor
Super XPJust seen it says supports 8 Channels. Does this mean the new ZEN will have Quad Channel Memory Controller or a 8 Channel one? Just Curious.
Caring18 channels is 8 channels.
Calm your excitement guys, you won't be seeing 8 DDR4 channels in consumer parts, else AMD platforms would already be shipping quad-channel like the server parts (Opterons on Socket G34, since 2010) right now.
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