Are There High-Capacity DRAM Modules for FPGAs That Don’t Use CXL Protocols?
Hi Devs,
I'm working on a project requiring a large amount of DRAM (similar to SSD capacity) for a single, high-end FPGA. Ideally, I need constant read/write access (24x7) at around 10GB/s bandwidth (split between 5GB/s reads and 5GB/s writes). While RAID isn't a major concern, the sheer volume of data makes standard DDR4 impractical due to limited capacity per module and high pin count requirements. CXL modules seem like a good fit for capacity, but my FPGA doesn't support CXL.
My question is: are there any commercially available DRAM modules that offer high capacity like CXL memory or SSDs, but utilize transceivers for interfacing with the FPGA instead of relying on CXL protocols?
Any suggestions or insights into alternative memory solutions that could meet these requirements would be greatly appreciated.
I'm working on a project requiring a large amount of DRAM (similar to SSD capacity) for a single, high-end FPGA. Ideally, I need constant read/write access (24x7) at around 10GB/s bandwidth (split between 5GB/s reads and 5GB/s writes). While RAID isn't a major concern, the sheer volume of data makes standard DDR4 impractical due to limited capacity per module and high pin count requirements. CXL modules seem like a good fit for capacity, but my FPGA doesn't support CXL.
My question is: are there any commercially available DRAM modules that offer high capacity like CXL memory or SSDs, but utilize transceivers for interfacing with the FPGA instead of relying on CXL protocols?
Any suggestions or insights into alternative memory solutions that could meet these requirements would be greatly appreciated.
Solution
You can workaround with HBM cus it has stacked DRAM layers on top of the FPGA, impressive bandwidth and capacity It might not be as spacious as CXL yeah, but it could get you closer to your target
Or use multiple DDR4 modules
Or use multiple DDR4 modules
