Very strange, why the NETGEAR XAVB5001 tested so poorly in the AV 500 roundup, especially since there was no firmware update since the original review.
Did you receive a different set of adapters? or did some other variable change in your testing, because in the orignal NETGEAR XAVB5001 review, it blew away the competition, but in the roundup review it got crushed.
I believe for Powerline Av there was only two mass market chipset vendors one was Intellon, which was acquired by Atheros, which was later acquired by Qualcomm. The other was Gigle Networks which was acquired by Broadcom.
Broadcom just announced last month BCM60321 powerline av 1.1 200mbps chipset based on 40nm manufacturing process. But I do not think this product will compete well against the latest powerline av 500 products in this roundup. But this chipset will bring lower power consumption on load and idle compared to qualcomm, and it will enable networking gear to be much smaller.
The recently announced Gigafast PN928-EB is based on this qualcomm chipset, so hopefully Tim will be able to test one of these new units and how it compared in performance, and in performance per watt.
Last edited by bigpapae35; 11-17-2011 at 12:04 PM.
We'll see when these chipsets make their way into real products. Honestly, though, it's diminishing returns. 500 Mbps loses throughput pretty quickly once you get some distance between adapters. Gigabit will probably be the same.
There's also the stuff about using the three conductors to sent the powerline signal (main+neutral+ground) instead of two. It could, depending of the implementation, provide more bandwidth ou a kind of "error correction"...
Some new chipset would be needed though.
Most houses in the US have 220V in that is split in the breaker box into two 110V phases. Did you try any tests across phases? Generally I have seen huge performance drops for PLN gear when they have to jump across the phases.