<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div class="gmail_quote"><div> I thought PCIe Gen2 x 8 @ 500 Mhz gives 8GB/s? I know there are 250 and 500 Mhz variants in addition to the lane sizes, so while a 250 Mhz x8 link wouldn't provide enough bandwidth to a dual-port card, the 500 Mhz one should. But I'm woefully out of date on my hardware knowledge, it seems. Of course, EDR (eight data-rate) IB is on the roadmap for 2011, so if we're in no rush that could help, too.<br>
</div></div></blockquote><div><br>Er,.. I thought about this a half-second after I sent it. First, that's 5.0 Ghz, not 500 Mhz, and second, that's probably aggregate bi-directional throughout at 8 GB/s, isn't it? So, I got it, 4 GB/s per direction, which means dual-port won't get us much in terms of unidirectional throughput.<br>
<br> - Brian<br><br></div></div>