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Multi-gpu setups for gaming are dead. Multi-gpu setups for computation could have two SKUs one "motherboard" SKU and one connectorized SKU with the connector N
by rocket_surgeron 4y ago
Multi-gpu setups for gaming are dead.
Multi-gpu setups for computation could have two SKUs one "motherboard" SKU and one connectorized SKU with the connector NOT being PCIe (after a transition).
They already do multi-form-factor, PCIe and OAM for AMD, PCIe and SXM for Nvidia.
Just drop PCIe, have a large motherboard SKU with a CPU slot and some OAM/SXM connectors in quantities up to what a wall socket can supply in terms of wattage (so, like 1 or 2 lol).
Vestigial PCIe cards can hang off the CPU card, if they're even needed.
High speed networking and storage is already moving to the DPU so these big GPUs, unhindered by the PCIe form-factor, could just integrate some DPU cores like they do RT cores, and integrate high speed networking and storage controllers into the GPU.
Home user? You get 1 or 2 DPU cores for NVMe and 10-gig Ethernet. Datacenter? 64 DPU cores for 100-gig and storage acceleration. Easy-peasy.
- kuschku 4y ago> what a wall socket can supply in terms of wattage (so, like 1 or 2 lol). So, you expect GPUs to take 1500W of power, each? (230V @ 16A)
- rocket_surgeron 4y agoNo. The motherboard and then 1 or 2 expansion sockets, for a total of 3. 3 x 450W for GPU (Nvidia says 4090 draws 450W-- I think they're lying and will wait for reviews to see the truth) and 500W for rest of system. Though that might be a bit low, the 11900K has been measured at what, 300W under load? And you'd need a budget for USB-C power, multiple NVMe, fans, and whatnot. Maybe the spec would accommodate high-core-count enterprise processors so 600W+ would be wiser. Even in euroland 2KW, which is what a maxed out system would be at the wall socket, is a bit much. They don't even allow vacuum cleaners over 900W to be sold.
- kuschku 4y ago2kW isn't actually that much — you can buy ATX power supplies up to 3.5kW for usage in 230V countries. Often used for mining, but also useful if you want to accelerate your blender renders by just throwing multiple GPUs at the task.
- imtringued 4y agoHonestly just use chiplets technology for more cores and get rid of the multi GPU concept entirely.
- DaiPlusPlus 4y agoMulti-GPU isn’t just about single-application performance. Multi-GPU is necessary if you need more display output ports: with limited exceptions every GPU I’ve seen is 3xDP+1xHDMI or worse. While a single DP can drive multiple monitors it limits your max-res/refresh-rate/color-depth - so in-practice if you want to drive multiple 5K/6K/8K monitors or game at 120Hz+ you’ll need two or more cards, with-or-without SLI/etc.