People need to pipe down on the battery life aspect of this downgrade. There is NO EVIDENCE of this.
"Guessing" based on sound engineering principles and a realistic look at the bandwidth capabilities of the system as a whole is better than simply bemoaning a change without an accurate understanding of what it might impact (or not, as the case may be).You don't know, you are guessing.
I sold my prev gen model to get this oneI'm kinda glad now that i managed to secure prev gen model
One could only hope. I'm contemplating returning my MBP 13". This is insane.
The proof is simple engineering. If you have two otherwise identical integrated circuits, with one running at half the clock speed of the other, the slower chip will consume less power, every time. This is a fundamental of electrical engineering. It's the same reason your mobile CPU will clock itself down whenever possible. It saves power - and the same principles apply to a serial communications interface such as SATA.
A couple thoughts come to mind:
1) The 17" is of course physically larger and can hold a physically larger battery, making the concession less of a priority
2) The 17" retains a 2.5gbps expresscard/34 slot, which could theoretically be used to provide a means of external expansion that could take advantage of a fast SSD on a 3.0 gigabit SATA bus
How do you know that it has an affect on battery life? Where is your proof? As far as I've read, no one has been able to confirm this.
And there is an easy rebuttal for that argument. If it was to save battery, then why does the 17" model still have the 3.0 SATA?
I sold my prev gen model to get this one![]()
Same![]()
The horror...the horror
I read a comment on this issue on a blog that said it best:
"Apple hurts us because it loves us" Not like this "issue" if you even want to call it that is going to make me enjoy my computer any less...for the 1000's of people whining about this, how many does it actually affect? And lets not get into an argument about "future bottlenecks" because everything is a potential bottleneck to something bigger and better coming out in the future.
I would welcome a firmware update for a slight peace of mind but I am not going to go crying bloody murder and demand refund at the top of my lungs over it..to each his own I guess. By the time it actually becomes a "real issue" I imagine most of us (me included) will have brand new notebooks...is it bad that I don't consider $1400 THAT much money for a notebook? Maybe I am priveledged that I earn a decent living, I don't know.
Says who? What's your engineering background? The fundamentals are exactly the same.You cannot seriously compare the effect of downclocking a cpu vs downclocking SATA speeds on battery life.
How do you figure? We've already established that the hardware used is identical. It doesn't take a genius to figure out that running a serial communications controller at a slower clock rate will result in power savings. A clock rate cut in half, particularly when talking about chips that operate in the multiple-gigahertz range, can be quite significant in terms of power savings.There is no evidence that SATAII would use any more power than SATAI
By all means, prove it. I'm listening.- and if it does, it would be absolutely negligible. And by negligible, I mean it would use such a ridiculously small increase in power that it simply would not matter.
Better yet, why does MacBook Air still use SATA 3? You can't even upgrade it to a better SSD yet (compatibility issues) and with its small battery and low power usage it would take better advantage of it than MBPs. This "longer battery life" theory doesn't seem plausible.
Says who? What's your engineering background? The fundamentals are exactly the same.
How do you figure? We've already established that the hardware used is identical. It doesn't take a genius to figure out that running a serial communications controller at a slower clock rate will result in power savings. A clock rate cut in half, particularly when talking about chips that operate in the multiple-gigahertz range, can be quite significant in terms of power savings.
By all means, prove it. I'm listening.
But that doesn't mean that having a 3.0 cap will use any more energy than a 1.5 cap. Shouldn't this be all dependent on the usage? If you are using an HD that is going well below 1.5, there should not be any more power usage than needed.
"Guessing" based on sound engineering principles and a realistic look at the bandwidth capabilities of the system as a whole is better than simply bemoaning a change without an accurate understanding of what it might impact (or not, as the case may be).
Sweet! So then you're obviously aware that the basic ways to reduce power consumption of an IC are to 1) miniaturize components (ie switch to a smaller fab/process technology), 2) layout optimization and/or decreasing resistance through improved semiconductors, or 3) Reduce the clock speed.Since I have a B.S.E.E. (do you?) I think I can understand the issues.
Noted on artificial benchmark != "see change"As far as bemoaning the change, I can see the change in usage of my X25M. If I had known about this change before trading in a newly purchased 2.66GHz (non SD slot) I might not have made the exchange.
Sweet! So then you're obviously aware that the basic ways to reduce power consumption of an IC are to 1) miniaturize components (ie switch to a smaller fab/process technology), 2) layout optimization and/or decreasing resistance through improved semiconductors, or 3) Reduce the clock speed.
Since "1" and "2" are obviously off the table here...
Noted on artificial benchmark != "see change"
I second you.
I also do not understand the logic on why people want to return their MBPs now and not wait until they get an official word from Apple, and a possible fix...
I still think this is going to be fixed in some way and hoping for the easy firmware update. I'm a proud owner of a new MBP 13" and couldn't be happier with it's screen.
I'm already stoked about the NVIDIA announcement of better GPUs and I am taking it easy on this one. I will ride the wave and try to enjoy my new lappy the best I can.
I am not in any way defending Apple and I do think this is a slimy, clever move from them. But until we get their response, I am holding off my complaint.
Excerpt from this article which people should understand:
"All three of the SSDs in the table above would be interface limited on the new MBP because of their high sequential read speeds. If you were copying large files from the SSD in your MacBook to a similarly fast device, the transfers could take longer. I doubt the performance difference would be significant or noticeable in real world notebook usage, but it doesnt change that theres no reason to take a step backwards like that. In the coming years well see more drives that can consistently break 150MB/s; Apple artificially limiting performance today would just hinder progress. "
LOL e-cocks are wanging it out.