Most people likely have more than 15 feet between their desktop PC and where their wireless router is located, so for this test we spread everything out. This time we more than doubled the distance to 35 feet,which put three interior walls between the wireless router and the desktop PC.
We all know that increasing the distance between the client and the router will lessen performance and that certainly proved to be true in our testing. At a distance of 35 feet with three interior walls, the Intel Wireless-N 7260 card performance dropped down to around 54-70 Mbps read speeds and 31-37 Mbps write speeds. At a distance of just 15 feet with one interior wall we were getting 65-83 Mbps read speeds and 57-60 Mbps write speeds. This is a small drop on the read speeds, but a rather large drop on the writing or uploading speeds.
The Intel Dual Band Wireless-AC 7260 Card was tested again on the 5 GHz band and had 231-244 Mbps average read speeds and then 100-111 Mbps average write speeds on both 1MB and 100MB packet sizes. Before we were getting ~285 Mbps read speeds and ~157 Mbps write speeds. Both wireless cards saw a performance drop at a greater distance, but the 802.11ac card on the 5GHz band was faster at 35 feet than the 802.11n card on the 2.4GHz band at 15 fee.
If you look at the 35 foot performance of these two wireless cards we found around a 4x performance improvement for write speeds and about 4.5x for read speeds with the Intel Dual Band Wireless-AC 7260 Card!
These are very significant performance increases that were achieved by switching to the Intel Dual Band Wireless-AC 7260 card.