Samsung HBM2E ‘Flashbolt’ Reminiscence for GPUs: 16 GB Per Stack, three.2 Gbps

Samsung has launched the trade's first reminiscence compliant with the HBM2E specification. The corporate's new flashbolt storage stacks increase efficiency by 33% and supply double per dice in addition to double packs per pack. Samsung launched its HBM2E DRAMs to GTC, indicating that the video games market is a goal marketplace for this reminiscence.

Samsung's "Good Good Stacked Die" flashbolt KGSDs are primarily based on eight 16 Gb reminiscence dies interconnected utilizing TSVs (through silicon vias) in an eight Hello-stack configuration. Every flashbolt pack has a 1024-bit bus with an information fee of three.2 Gbps per pin, offering a bandwidth of as much as 410 GB / s per KGSD.

Samsung positions its Flashbolt KGSDs for subsequent technology knowledge facilities, HPC, AI / ML and graphics functions. By utilizing 4 flashbolt stacks with a processor with a 4096-bit reminiscence interface, builders can get 64 GB of reminiscence with a peak bandwidth of 1.64 TB / s. This can be a huge benefit for capability and bandwidth intensive chips. With two KGSDs you get 32 ​​GB DRAM with a peak bandwidth of 820 GB / s.

Samsung's HBM2 reminiscence comparability

lightning strike
Aquabolt
Flarbolt

whole capability
16 gigabytes
eight GB
eight GB
4GB
eight GB
4GB

Bandwidth per pin
three.2 Gb / s
2.four Gb / s
2 Gb / s
2 Gb / s
1.6 Gb / s
1.6 Gb / s

Variety of DRAM ICs per stack
eighth
eighth
eighth
four
eighth
four

DRAM IC course of know-how
?
20 nm

Efficient bus width
1024 bits

voltage
?
1.2V
1.35V
1.2V

Bandwidth per stack
410 GB / s
307.2 GB / s
256 GB / s
204.eight GB / s

With the intention to enhance the DRAM switch velocity per pin to three.2 Gbps, Samsung in all probability had to make use of completely different strategies to cut back the collision of the facet clocks between the 5000+ TSVs and to make sure clear indicators. Nonetheless, the corporate doesn’t talk about this in its present announcement. Final 12 months, launched a number of the tips that its Aquabolt HBM2 DRAMs used to extend the per-pin bandwidth to 2.4Gbps, so most of those strategies are more likely to have advanced within the case of the Flashbolt ,

In reality, the announcement from Samsung doesn’t point out that the corporate has began mass manufacturing of its Flashbolt HBM2E reminiscence. So it seems as if the corporate has accomplished the event of the know-how, however isn’t but prepared to begin the supply of such chips mass portions.

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Supply: Samsung

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