5 ms·
Go with 2x 3090s instead. 4000 series doesn't support SLI, so you're stuck with the max of whatever one card you get.
by throwaway743 4y ago
Go with 2x 3090s instead. 4000 series doesn't support SLI, so you're stuck with the max of whatever one card you get.
- bick_nyers 4y agoIf I remember correctly the NVLINK adds 100GB/s (where PCIE 4.0 is 64GB/s). Is it really worth getting 3090 performance (roughly half) for that extra bus speed?
- YetAnotherNick 4y agoPCIE 4.0*16 is 32 GB/s.
- rerx 4y agoAmpere NVLink (NV3) was 600 GByte/sec, with Hopper (NV4) it's 900 GByte/sec. https://www.nvidia.com/en-us/data-center/nvlink/ https://www.nvidia.com/en-us/data-center/nvlink/
- bick_nyers 4y agoThat is for the data center NVLINK, according to Wikipedia, for GA102 (3090) it is a 56.25GB/s bidirectional, yielding 112.5GB/s total bus bandwidth.
- rerx 4y agoAh, that's true, thanks. It's the same type of NVLink as on the A40 GPU. https://images.nvidia.com/content/Solutions/data-center/a40/nvidia-a40-datasheet.pdf https://images.nvidia.com/content/Solutions/data-center/a40/...