- Mar 27, 2009
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According to the following chart the default speed for HBM2 is 2 Gbps per pin for 256 GB/s bandwith:
But I have been wondering if it is possible to tune the speed per pin down to a much lower range (eg, 400 Mbps to 1 Gbps)? This for use in a large iGPU laptop as a replacement for system RAM. (Think 1 x 8GB HMB2 at 800 Mbps/pin for a lower processor bin and 2 x 8GB HBM2 @ 500 Mbps for a higher processor bin)
1 x 8GB HBM2 @ 800 Mbps/pin = 102 MB/s bandwidth
2 x 8GB HBM2 @ 500 Mbps/pin = 128 MB/s bandwidth
But I have been wondering if it is possible to tune the speed per pin down to a much lower range (eg, 400 Mbps to 1 Gbps)? This for use in a large iGPU laptop as a replacement for system RAM. (Think 1 x 8GB HMB2 at 800 Mbps/pin for a lower processor bin and 2 x 8GB HBM2 @ 500 Mbps for a higher processor bin)
1 x 8GB HBM2 @ 800 Mbps/pin = 102 MB/s bandwidth
2 x 8GB HBM2 @ 500 Mbps/pin = 128 MB/s bandwidth