Originally Posted by qhn
Me also (fuzzy that is)
Let us put it in a simple non-scientific math, wireless speed at 18mbps (on a slow comp of mine), and a 54g router - tested 1 hour ago:
. I can download a 50mb file in less than minutes
. My system is at a crawl when transferring this file to another Vista machine, with a good 8 min.
Transfer from Desktop to Laptop: 2.5 Megabytes per second.
Download from the internet via Laptop: 950 Kilobytes per second.
Upload speed from any PC in the house: 350 Kilobytes per second.
Now let's look at the numbers mathematically.
50 Megabyte file.
@ 2.5 Megabytes per second via PC to PC -
@ 350 Kilobytes per second upload from Desktop, download @ 950 Kilobytes per second via internet.
2m 38s upstream
0m 53s downstream
Total: 3m 31s
That is 3m 31s to transfer via internet vs 20 seconds to transfer direct.
Now, most people say their 300mbps cards see an average speed of around 20 Megabytes per second while transferring from one PC to another. At that speed, my transfer time would be 2.5 seconds.
So here is what we have:
via Internet: 3m 31s
via 54mbps: 0m 20s
via 300mbps: 0m 2.5s
Now with the math out of the way by using a 50MB file as an example, let's apply that to a real world (read: my) situation.
One of my desktop PCs is used for video editing. I write, film, and edit movies as a hobby with my friends. The finished product of these files is usually an MPEG2 video which ranges in size from 5GB up to as much as 20GB.
My laptop is hooked up to a Projector downstairs so we can view the movies when we are done. Streaming the movies is not physically possible at the moment due to my slow connection with my laptop, so the only way to get movies onto the laptop is a USB flash drive, which will only transfer at an average of about 7-8MB/s. This means that, if I were to see the same results as others using 300mbps cards, I could effectively double the speed of the USB drive and multiply my current wireless speed by nearly ten times.
This isn't even taking into account the fact that every time I have to wipe my hard drive and reinstall an operating system, one of the first things I have to do is transfer more than 60GB worth of MP3s from my iTunes on my desktop to my iTunes on my laptop. (Which I have done 4 times in the past two weeks.)
Right now, when I have to transfer my music, I am using an Ethernet cable to connect to my router, which nets me a speed of 10MB/s, limited by the onboard 10/100 Ethernet on my laptop. (My entire home network is set up for 10/100/1000, remember).
I also keep backups of the free/open source programs I use so I don't have to download them every time I reformat my HD. (2.5MB/s > 950KB/s). These account for another 10GB easily worth of data that needs to be transferred every time I reformat.
So, as I have said... I am quite fuzzy on how you have concluded that:
1) Transfer via Internet will be faster than PC to PC.
2) Upgrading to a 300mbps card will not benefit me.
Is there something else you are telling me that I am missing?
I know that you have mentioned Cables being a possibility in the bottleneck, but like I've said... all of the desktops on my network are set up for gigabit, so my PC to PC transfers between other computers is usually between 80 and 85MB/s. I seriously doubt that would be a bottleneck. I also know my router is set up for 300mbps Wireless N, so that wouldn't be a bottleneck if I upgraded.
If I was only using the PC for internet, there wouldn't be an issue at all, because my transfer rate on the laptop is more than double our maximum internet speed... but I actually don't use my laptop for internet or browsing very often at all.