Is the display not only showing the actual speed? The disk that I have seen for new mbp are only 1.5 Gbit/s.
Would it be hard for someone like Netkas to do this themself? i.e. make a patch to allow 3.0gbps.
also this can't be a mistake by apple, otherwise they wouldn't turn on 3.0gbps on the ones shipped with ssds.
SATA2 is not a huge deal for battery life, at most it's going to save you like 5 minutes of power...
Results 244.00
System InfoXbench Version 1.3
System Version 10.5.7 (9J61)
Physical RAM 4096 MB
Model MacBook5,1
Drive Type OCZ-VERTEX 1571Disk Test 244.00Sequential 207.48Uncached Write 285.89 175.53 MB/sec [4K blocks]
Uncached Write 190.43 107.75 MB/sec [256K blocks]
Uncached Read 123.93 36.27 MB/sec [4K blocks]
Uncached Read 406.38 204.24 MB/sec [256K blocks]Random 296.12Uncached Write 112.62 11.92 MB/sec [4K blocks]
Uncached Write 349.63 111.93 MB/sec [256K blocks]
Uncached Read 1759.80 12.47 MB/sec [4K blocks]
Uncached Read 832.96 154.56 MB/sec [256K blocks]
ouch...still no news from apple ?
Basically:
1.) It appears nearly certain that the new 13" and 15" MacBook Pros are all reporting a SATA interface running at 1.5Gb and not the faster 3.0Gb rate that has been in pretty common use for the last few years. These new models have the Secure Digital (SD) slot and also appear to have redesigned motherboards.
2.) Those who are using standard hard disk drives will probably see no difference in performance. If that is you, you can stop reading now.
3.) Benchmarks on FAST solid-state drives (SSDs) are showing a decrease in RAW disk i/o transfer rates on these same systems (in comparison to the previous generation MacBook Pros and MacBooks).
4.) The largest differences in the benchmark results seem to be in large, sequential disk READS (one of the traditional strengths with SSDs).
5.) To the best of my knowledge, no one has done any test with REAL-WORLD operations to show that the user experience (i.e. "performance") will be decreased with the 1.5Gb SATA interface. That is to say that thus far we've only seen benchmarks done with RAW disk i/o benchmarking tools.
6.) No one really knows why this has been done and no one knows whether it can be fixed with a software/firmware update (it may or may not be able to be fixed).
Typical of recent apple upgrades, apple giveth, and apple taketh away (without telling you).
Not including video adapters, apple remotes, briefly firewire, etc. All I can say is 'wow'.
I'm about ready to adopt what I call the 'one month after' rule: I'm not going to buy a new apple product until at least one month after its release to see what the early adopters have to say about it. Period.
I'm currently in the Bullring Apple Store, UK and while I was waiting for a Genius appointment I checked all the SATA speeds in System Profiler for the MacBooks on display.
13" MBP = 1.5
15" MBP = 1.5
17" MBP = 3.0
13" MB (White) = 3.0
13" MBA = 3.0
They are all the latest models.
Shouldn't their be an option to run it in 1.5 or 3 depending on what you want to do and if its plugged in?
Interesting thread ! I notice that most people are posting results with the X-25M. This is great for reads but somewhat limited in write speeds. Anyone with SSDs using Indilinx controllers ? ie OCZ Vertex etc ? If so, please post your Xbench results with the new MBP
For comparison here's what one can expect from the old 13" MB 2.0 GHz
Agreed. Although I haven't subscribed because I've kept this thread on a tab in Safari.Subscribing to this thread. Very useful information.
Past cycles do not necessarily predict future updates. And if we do go by past updates, then the next update (barring tiny ones like the November 2007 one) would be in early 2010. Arrandale will be in production in Q4 2009 and most likely released in early 2010, hence predictions of a Q1 2010 update.Uhh.. when do you think the unibodys were announced, oct-nov last year. That's exactly 5 months from now a year ago. So yes they will be announced then.
People are putting in 3.0 hard drives and getting 1.5 speeds. It's not the hard drive.From what I've been reading, the NVIDIA MCP79 chipset (which handles the SATA bus) supports SATA II, which is 3.0Gbps.
I would think that if System Profiler reads 1.5Gbps speed, that means it's limited by the hard drive.
I wouldn't worry muhc about a 1.5Gbps SATA disk in a mobile computer, unless you're thrashing the disk a lot, you'll never see a measurable difference with 3 or 1.5Gbps.
From what I've been reading, the NVIDIA MCP79 chipset (which handles the SATA bus) supports SATA II, which is 3.0Gbps.
I would think that if System Profiler reads 1.5Gbps speed, that means it's limited by the hard drive.
I wouldn't worry muhc about a 1.5Gbps SATA disk in a mobile computer, unless you're thrashing the disk a lot, you'll never see a measurable difference with 3 or 1.5Gbps.
Want me to enlarge it for you?