Nvidia gives Grace Hopper superchip an HBM3e upgrade – sometime next year
Tuesday, Huang talked up a dual-superchip configuration. According to Nvidia, a high speed connection between the chips allows them to function logically as a single CPU and GPU resource with 144 CPU cores, eight petaFLOPS of FP8 performance, and 282GB of HBM3e.
For larger workloads, like AI training, the GH200 can be scaled up to 256 chips in a configuration called the DGX GH200. However, apart from more, faster HBM, not much has changed since itthe cluster this spring. The chip shop says the 24-rack cluster is still capable of delivering an exaFLOP of FP8 performance.
Until recently, if you needed more than 80GB of vRAM, your options for sticking with Nvidia were limited. You could add a second GPU to the mix – but that's a rather expensive way to add memory if you don't also need the compute. Here, AMD and Intel were somewhat differentiated with their Instinct and GPU Max cards, respectively, available with up to 128GB of HBM.
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