View Full Version : USB 2.0: Fast, but not 40 times faster
03-11-2002, 11:55 AM
The article in PC World tested several USB 2.0 cards and found them to be 8.5 to 12 times faster than USB 1.0, not 40 times faster as some ads have claimed. Still, that's not bad!
03-11-2002, 12:24 PM
That's good to know -
Kind of like the hop from 100Mbps to gigabit - there's no way you're actually going to see 1000Mbps over a copper wire outside of a lab. 'Course, even 100Mbps only runs at 50-70Mbps...
03-11-2002, 12:27 PM
It's kind of like most things in technology -- specs may make you believe it's a lot faster than it really is.
For example, take a look at CNet's review of an 802.11a access point. While the specs make you think it's nearly 5 times faster than 802.11b (54mbps vs. 11mbps), actual performance is only about 2-3 times as fast.
(That CNet article can be found Here (http://computers.cnet.com/hardware/0-7052-404-8865038.html?tag=belt))
03-13-2002, 06:27 PM
I understand what you guys are saying but if this article is accurate, I'd have to say I'm a little disappointed. I certainly wasn't expecting the full 480Mbps but to have it only reach about 144Mbps is just terrible. I'm guessing (or hoping) that these manufacturers haven't created products that meet the full specifications of USB 2.0. Maybe in the future, we'll be able to take advantage of all that USB 2.0 offers. :(
03-13-2002, 08:03 PM
hell, that will never happen. They haven't even reached the full potential of ATA 33/66!!!
They never do, they move to the next one.
03-15-2002, 08:56 AM
Firewire: 400 MPS; slightly slower than USB 2.0
03-19-2002, 01:50 AM
Does it really matter for the push for 2.0? I think firewire has a good enough presence that it will probably take over anyhow in the longrun. Since even M$ claimed they would back up firewire over usb 2.0 earlier last year for XP, I think it shows that its gonna be hard, for manufacturers that use firewire the must, such as video cameras to move over to 2.0. As it is, firewire works great for me for transfering video so I have no plans to switch to 2.0 unless if cameras start coming out with it. But I doubt that somehow. . . I'm suprised though they aren't working near the claimed 480mbps though. Perhaps its just early hardware jitters.
Firewire will never take over USB unless mobo manufacturers start making it a standard on their products, simple as that. I think they should. I like firewire but haven't really messed w/ USB 2.0 mostly because it really hasn't taken off too well.
03-20-2002, 02:25 PM
Found out some more info but no linkies. But a reasonable speed to expect from firewire is ~320mbps. And one thing about usb that is inferior to firewire is it is very poor at sustaining speeds. So it may be true that usb 2.0 can burst up to 480 mbps, but won't have sustained rates near it. Also 1394b is in the works and should be out sometime before the year is over, it'll do 800 mbps. And a little later they'll follow up with another update of firewire at 3.2 Gbps!!! Basically usb will be for periphreals like scanners, mice, keyboards and perhaps faster cd-burners. But firewire has an advantage for hard drives and video for its high sustained speeds.
Its sort of like the bluetooth and 802.11a/b comparisons. USB and Firewire will both be around, but one won't take over the other most likely.
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