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Intel Ultimate N 633ANHMW IEEE 802.11n (draft) Wi-Fi Adapter - Mini PCI Express - 450Mbps, Bulk Review
Background:As of January 22, 2011, Intel has 3 model of wifi cards to choose from
Ultimate-N 6300 - Dual Band (2.4 & 5 GHz) 3x3:3 = Three transmit /receive antennas and three spatial (data) streams (max 450 Mbbps)
Advanced-N 6200 - Dual Band (2.4 & 5 GHz) 2x2:2 = Two transmit / receive antennas and two spatial stream (max 300 Mbps)
Wireless-N 1000 - Single Band (2.4 GHz) 1x2:2 = One transmit & two receive antennas and two spatial stream (max 300 Mbps)
Intel also has some legacy cards that is still for sale. There is the "5300",it has the same features as the 6300, and the "5100" (Dual Band 1x2:2).
Performance:
My laptop (Windows 7 Pro 64 bits) came with the "Wireless-N 1000" and I have the Netgear WNDR3700 router (2 spatial streams - max 300 Mbps). Before I replaced the wifi card with the 6300, I wanted to see if this upgrade was worth it. I used a program ,"Lan Speed Test", to measure throughput of both cards (this program works by writing/reading a file to a shared folder of another computer and measuring the throughput). To get an idea of the numbers to expect, using a wired Ethernet connection showed an upload speed of 530 Mbps and a download speed of 660 Mbps. For the "Wireless-N 1000" card, I notice the upload speed was inconsistent; ranging from 32 to 65 Mbps. While the download speed was consistently around 70 Mbps. Performing this test on the 6300, the 2.4 GHz band, showed consistent upload/download speeds around 70 Mbps. Looking at the specs you can see upgrading from 1 to 3 transmit antennas increased the signal quality and allowed for consistent upload speeds. I also tried the 6300 with just 2 antennas and the results were very similar to the 3 antenna test. For the test on the 6300 with the 5 GHz band, it showed 115 Mbps up and 128 Mbps down. It will be interesting to see to how this card works with the Netgear WNDR4000 router (3 spatial stream - max 450 Mbps)
Update (1/30/2011): I tried this card on the Linksys E4200 router (supports 3 spatial stream) and the throughput on the 5 GHz band showed 129 Mbps up and 148 Mbps down. Also, I updated the test results based on the improved version of "Lan Speed Test"
Installation:
Physically installing the card was easy. It is a matter of disconnecting the antennas and removing two screws from the old wifi card and doing the reverse to install the new card. The hard part was fixing the dreaded "1802: Unauthorized network card is plugged in - Power off and remove the miniPCI network card." error that occurs during the boot up of the laptop. It turns out Lenovo has a whitelist in the BIOS to only allow certain wifi cards. To fix this issue you have to create/obtain a modified BIOS with the whitelist removed. If you do come across this issue, type "my digital life bios mod whitelist" in good ole Mr Google and he will help you find a solution.
Conclusion:
It does what I wanted it to do, provide a solid fast connection. There has been no drop outs with the card or any strange issues. So far, I am totally satisfied with the purchase.
Intel Ultimate N 633ANHMW IEEE 802.11n (draft) Wi-Fi Adapter - Mini PCI Express - 450Mbps, Bulk Overview
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