Thread: 100M need advice and help for a possible fix
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Old 03-12-2015, 00:12   #122
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Re: need advice and help for a possible fix
Quote:
Originally Posted by MUD_Wizard View Post
Agreed. Though 5ghz 802.11n is also dependent on HT and MIMO. All wireless is subject to interference etc.
Yes, but no. This device doesn't have MIMO on 5Ghz AC and (V)HT isn't disabled by default on 5Ghz like it is on 2.4. And half the point of 5Ghz is it has less interference, therefore that strengthens my case even more.


Quote:
[COLOR="DarkRed"]433Mbps isn't throughput, it's the communication link rate, with 802.11ac using HT80 you get around half of that as throughput (speed you see on a speed test) after communication overheads. i.e. Around 215Mb.

vs on 802.11n you see around 2/3rds of the link rate as throughput. Using 300Mbps link rate, that's around 200Mbps.
AC is more efficient than N so actually you get a higher proportion of throughput. On 11n you get 85% of the link rate as throughput (maximum) and on AC it's supposed to be higher.

But that ignores the fact we're still looking at a 72 or 144Mbps link rate vs. a 433Mbps link rate. Even if your numbers were right, two thirds of a 144Mbps link rate is about 100Mbps, half of a 433Mbps link rate is over 200Mbps. Still a HUGE difference.

Quote:
LOL ... because that works so well when comparing across processor families.
Mhz is an inaccurate measure of processor performance.

3.4 Ghz Intel Pentium 4 672 (average CPU mark 402)
vs
AMD A4-5000 1.5 Ghz (average CPU mark 1893, single thread rating 585)
That's why I specifically didn't say anything about processor families.

A 3.4Ghz single-core Pentium 4 will be faster than a 850Mhz quad-core Pentium 4 in most places. Especially when that quad-core is overheating because of err interference.

---------- Post added at 01:12 ---------- Previous post was at 01:09 ----------

Quote:
Originally Posted by MUD_Wizard View Post
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