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AMD confirms 4GB limit for first HBM graphics card

AMD’s just taken the wraps off its shiny new high bandwidth memory (HBM) technology, and as rumoured, the company is limited to a total of 4GB for its first-generation HBM product. While AMD has yet to reveal specifics of what that product might be, it did tell us that it’ll be a GPU, it’ll be priced towards the higher end of the spectrum, and that you’ll be able to walk into a store and buy one within “the next couple of months.” The rumour mill strongly suggests that this first HBM part will be the R9 390X.

The reason for the 4GB restriction for the company’s upcoming GPU is due to the first-generation HBM design. HBM uses stacked memory chips along with a silicon interposer and through-silicon-vias (an interconnect that runs through the chip from top to bottom) in order to move the DRAM closer to the GPU. This shortens the traces, allowing for increased bandwidth and lower power consumption. Currently, those chips can only be stacked four dies high. With each die limited to 2Gbit, each stack is one gigabyte. AMD’s current design only allows for four stacks around the GPU, limiting the system to four gigabytes.

It’s not entirely clear why the company has been limited to four stacks of memory for its first-generation product. If AMD is sticking with its GCN 1.1 architecture for the launch of HBM, the physical die size of the GPU may have had something to do with it. It could also simply be down to cost. HBM, while cheaper than rival stacked memory technology Hybrid Memory Cube (HMC), is still likely to be pricier than the equivalent DRAM, making eight stacks impractical. Regardless, a leaked set of slides from HBM manufacturer Hynix alleges that second-generation HBM will double capacity to 2GB per stack, allowing for graphics cards with 8GB of RAM in the future.

While 4GB of memory is common for even high-end graphics cards these days, video games like GTA V are slowly but surely eating their way through it. That’s especially true for games running at higher resolutions like 2560×1440 and 4K, where larger textures need to be moved in and out of memory. The 4GB limit also makes HBM a less than ideal solution for the workstation market, where GPU rendering must be held entirely within the the memory buffer. Nvidia currently offers graphics cards with 12GB of memory in the form of the £900 ($1000) Titan X and even pricier Quadro M6000. AMD’s flagship R9 290X tops out at 8GB, but is substantially cheaper at around £380 ($469).

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Industry 4.0: It’s all about information technology this time

A favorite theme many speakers — especially futurists — like to invoke is that we’ve passed the industrial revolution, or even the information revolution that superseded it, and we’re now in some kind of “post-information” revolution. Some people, especially on the European side of the pond, have another name for it, calling it “Industry 4.0.”

Just to clarify this phenomenon, the numbering wasn’t meant to align with any of the information technology waves of the past few decades — Web 2.0, et. al. But the transformation promised with Industry 4.0 has everything to do with IT.

“Industry 4.0” was the brainchild of the German government, and describes the next phase in manufacturing — a so-called fourth industrial revolution. The phases consist of the following:

Industry 1.0: Water/steam power
Industry 2.0: Electric power
Industry 3.0: Computing power
Industry 4:0: Internet of Things (IoT) power

As you can imagine, building a new industrial paradigm around IoT calls for IT managers and professionals to step up and support new growth in new ways. Many of the technologies enterprises are putting into place today will form the core of Industry 4.0.

Boston Consulting Group (BCG) just published a primer that identifies the nine technology areas that underpin Industry 4.0, and it almost reads like the checklist of any enterprise IT shop seeking to keep up with the digital era:

Horizontal and vertical system integration: Industry 4.0 calls for an enterprise view of data and networking of systems. It’s the only way to ensure collaboration not only across enterprise departments, but also between partners across value chains.

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