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raymondu999

macrumors 65816
Original poster
Feb 11, 2008
1,009
1
Hi there. I wanted to know... for file transfers directly between two MacBook Pros, which is faster? I have an Ethernet cable which is an enhanced CAT.5 UTP at 350MHz. If I got an FW800 cable, would file transfers happen even faster? What exactly ARE the rated speeds for each?
 

yg17

macrumors Pentium
Aug 1, 2004
15,027
3,002
St. Louis, MO
The MBPs have gigabit ethernet, so the theoretical maximum using Ethernet is 1,000mbps and Firewire is 800mbps. Keep in mind, those are THEORETICAL maximums though. Ethernet likely has higher overhead due to TCP/IP, so you'll probably see better real-world results with Firewire
 

raymondu999

macrumors 65816
Original poster
Feb 11, 2008
1,009
1
Is gigabit also cable dependent? ie does my cable have to support gigabit to be able to access that functionality?
 

merl1n

macrumors 65816
Mar 30, 2008
1,095
0
New Jersey, USA
Is gigabit also cable dependent? ie does my cable have to support gigabit to be able to access that functionality?

To support Gbit you should be using CAT5E (enhanced) or CAT6 cables. Otherwise you may get some signal loss or degradation and it will affect the speed of your transfers.
 

sushi

Moderator emeritus
Jul 19, 2002
15,639
3
キャンプスワ&#
I would think that FW800 in disk mode would be fastest due to the overhead with TCP/IP via a LAN cable.

Anybody out there try a comparison between FW800 and Gb Ethernet?
 

ChrisA

macrumors G5
Jan 5, 2006
12,584
1,701
Redondo Beach, California
Is gigabit also cable dependent? ie does my cable have to support gigabit to be able to access that functionality?

For the distances you are taking about (a few feet) normal cat5 cable will work just fine, If you are trying to go 100 meters then it's another story.
To connect two notebooks you will need either a cross over cable or two normal cables and a gigabit switch

Firewire 800 will be just about the same speed. It's less bits per second but lower overhead. But both FW800 and Ethernet are faster then the disk inside the typical notebook computer so nether would be the bottle neck.
 

yg17

macrumors Pentium
Aug 1, 2004
15,027
3,002
St. Louis, MO
For the distances you are taking about (a few feet) normal cat5 cable will work just fine, If you are trying to go 100 meters then it's another story.
To connect two notebooks you will need either a cross over cable or two normal cables and a gigabit switch

Firewire 800 will be just about the same speed. It's less bits per second but lower overhead. But both FW800 and Ethernet are faster then the disk inside the typical notebook computer so nether would be the bottle neck.


Actually, newer ethernet cards (and the ones in Macs) can do the crossover internally, automatically, so a regular straight-thru cable can be used
 

telecomm

macrumors 65816
Nov 30, 2003
1,387
28
Rome
Actually, newer ethernet cards (and the ones in Macs) can do the crossover internally, automatically, so a regular straight-thru cable can be used

And they've been able to do that for ages, even my first iBook (from something like fall 2001) could autodetect and adjust accordingly.
 

AENAON

macrumors member
Jul 7, 2005
41
0
Cyprus
I've tried these setups and others, and when it comes to laptops you won't notice any difference at all, laptop drive speeds are way below the capacities of FW800 and gigabit ethernet. Your choice should come down to weather:
1. u will need to hook up another FW800 device or ethernet something. (u only have one of each on each macbook)
2. the possible distance u may need in the future. Ethernet can go a loooong way.
3. the price. FW800 cables can be several times more expensive that the ethernet ones.
 

OrganMusic

macrumors 6502
Sep 21, 2008
290
1
Chicago
Holy crap Gigabit is fast! I just moved an 18 GB video file from my imac to my MBP in about 7 minutes. At first I started it over Wifi (g) and it predicted 2 hours. I don't have any FW800 devices yet but I knew it would take ages to copy to my USB hard disk.
 
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