Centrino 2 Laptop Roundup

by Jarred Walton on 10/24/2008 3:00 AM EST
Comments Locked

27 Comments

Back to Article

  • CEO Ballmer - Sunday, October 26, 2008 - link

    This thing is Vista Home Certified! That's the bomb!

    http://fakesteveballmer.blogspot.com">http://fakesteveballmer.blogspot.com
  • alantay - Saturday, October 25, 2008 - link

    I don't have a very comparable figure about Linux power requirements, but on a Core 2 Duo Santa Rosa based HP laptop (T7100, X3100 IGP, 15.4" screen), the reported power consumption with a default Ubuntu 8.10 installation is 13 watts with lowered screen brightness and 19 watts at full brightness. Not bad, but not a big difference either.

    Truth is, Linux was bad at power usage until 12-18 months ago. Clearly worse than Windows XP at the time. Only recently there have been significant improvements, so it's now better than Windows Vista, but it seems nowhere near OS X. But it's getting better and better, so in a year it might be doing really good.
  • sprockkets - Friday, October 24, 2008 - link

    While it is true you may not need to have access to the cpu for upgrades, it literally sucks to have to get to it, just to properly clean out the fan, or worse, to replace it.

  • enki - Friday, October 24, 2008 - link

    Those laptops seem to be very poor representations of good pc laptop battery life. Look at the review for the T400:
    http://www.notebookreview.com/default.asp?newsID=4...">http://www.notebookreview.com/default.asp?newsID=4...
    It got 581 minutes of battery life in their web browsing test and could play a 3d game for longer then those laptops could browse the web (3 hours)

    So in your conclusion when you say if you like to work untethered you should pick a Mac it seems like a T400 with about 2 times the bettery life would be better
  • JarredWalton - Friday, October 24, 2008 - link

    Someone else mentioned the T400 in response to the MacBook article. To repeat what I said there, here's a few quote from their review:

    "With the T400 you can reach 9 hours and 41 minutes with the wireless enabled, screen backlight at 60%, and the laptop in integrated graphics mode using only the 84Wh 9-cell battery. In this situation the notebook is only consuming roughly 8.5 watts of power. In dedicated graphics mode under the same settings battery life falls by exactly 2 hours down to 7 hours and 41 minutes, and power draw increases to 10.5 watts. The 6-cell battery managed 6 hours and 4 hours and 28 minutes respectively."

    Another statement: "When watching XVID encoded movies off the hard drive the 9-cell had an estimated 6 hours and 45 minutes of battery life, drawing 13 watts of power." I really don't like "estimates", though I still suspect it can hit at least 6 hours of Xvid playback.

    No mention is made of actually *surfing* the web - WiFi is merely "enabled". Without knowing more about how they conduct their battery life testing, I can't say whether their numbers are comparable to ours. What I do know is that U6V battery life almost doubles (149 minutes vs. 261 minutes) when I go from web surfing to idle. With a similar battery, the U6V would jump up to 418 minutes idle battery life. DDR3 and the ability to disable the discrete GPU probably make up the difference.

    Three hours playing Portal with an 85 Whr battery on the T400 is okay, but not that much better than what I would expect from the U6V with a similar battery. With the default battery, that would drop to only two hours.

    It does look like the T400 may be more or less equal to the MacBook, which is good to see. The MacBook with a 45 Whr battery under a heavier load (Xvid + constant downloading + web surfing) got 3.1 hours and the T400 gets an *estimated* 6.75 just playing Xvid. If we call those loads relatively "equal", the MacBook gets 4.13 Min/Whr compared to 4.82 Min/Whr on the T400. Probably the surfing and downloading would again make up the difference.

    I'll see if I can get a T400 for review, but Lenovo hasn't sent us anything in the past so it's a long shot....
  • cweinheimer - Friday, October 24, 2008 - link

    "Otherwise, you might as well just stick with IGP, since the 9300M class hardware is only a small boost in performance over the X3100/X4500".

    Slightly better you say? If I recall the article from Anand's IGP chronicles, the 9300igp in atx destroys any intel IGP. Surely the 9300m isnt that much worse than the deskyop counterpart.
  • JarredWalton - Friday, October 24, 2008 - link

    What's twice as fast as a snail? LOL Okay, even at three times as fast it's hardly anything to brag about. If you want GPU performance, go out and get an appropriate GPU. If you're not going to play 3D games (which I wouldn't plan on doing with the 9300M GS), why bother? For 1280x800 gaming, I'd say the 9500M or HD 3600 are the bare minimum you should get. I'd also wager that the inclusion of the 9300M on the U6V cut battery life by at least 10% relative to X4500. (Would be nice to see an NVIDIA IGP notebook other than Apple as well....)
  • garydale - Friday, October 24, 2008 - link

    I'm sorry, but nothing has changed in a couple of decades nor is it likely to, Notebooks are always slower, more expensive and more difficult to repair than desktop systems. It's inherent. You're trying to squeeze equivalent functionality into a smaller, integrated package.

    CPU manufacturers bring their new cores out for desktop systems first sos they can get the technology right before they add in the extra notebook features. Notebooks run off limited power so you need to make some adjustments, such as extra circuitry for dual power sources, power conservation, etc.. You need to add extra components like battery packs, dual outputs and docking interfaces.

    When you buy a notebook, you're always buying the whole thing. You can't reuse your old keyboard, mouse, monitor, etc. And you have to squeeze everything into a smaller package, which makes it harder to manufacture.

    So please, stop telling us how notebooks are catching up to desktop systems. They aren't and they can't. Notebooks are popular right now but serious users have desktop systems for the speed, flexibility, performance and cost.

    I'm running a quad-core desktop system with 4G of dual-channel RAM and 3x500G SATA drives in a RAID 5 array. I don't think there is a notebook out there that can match any of the specs, let alone all of them. And I certainly can't get any notebook that powerful at the price I paid for the desktop system.
  • JarredWalton - Friday, October 24, 2008 - link

    I never said that notebooks are "catching up"; I simply pointed out that we are reaching the point where they are "fast enough". You pretty much repeated everything I stated in the intro, with a negative slant. I'm *not* recommending everyone go out and buy notebooks; what I'm saying is that they're a viable option for many users, even if they cost more.

    Anyway, the Clevo D-901C can handle three hard drives (in RAID 5), up to 8GB RAM, and quad-core processors (only 2.67GHz I believe), plus 9800M SLI. Total cost for such a system, however, ends up being over $5000. LOL

    Now, tell me *why* your average user needs quad-core, a 1TB RAID 5 set, and probably SLI graphics while we're at it. Throw out gaming, video encoding, and 3D rendering (and other workstation/server loads). That's the market a notebook can easily satisfy. Heck, I have a single-core AMD 3800+ still hanging around that handles all the Internet/Office tasks 95% of PC users require, and I can guarantee that the three laptops in this article outperform it in every meaningful benchmark. We've reached the tipping point where there are a lot of people that just need something that's "fast enough".
  • geokilla - Friday, October 24, 2008 - link

    This laptop might actually contain a 9800M GS and not a 9800M GTS, which is basically an underclocked version of the GTS.

    More info on whether it's a 9800M GS or GTS can be found here.

    http://forum.notebookreview.com/showthread.php?t=3...">http://forum.notebookreview.com/showthread.php?t=3...
  • JarredWalton - Friday, October 24, 2008 - link

    I chatted a bunch with ASUS on this; there was some confusion so I may have ended up with the wrong conclusion. (Yeah, marketing wasn't positive on the specs, and engineering didn't ever pass on the exact details.) I actually had a paragraph detailing the differences between the 9800M GTS and this supposed 9800M GS. Since I don't have one in my hands, I can't say one way or the other with certainty.

    The worst case would appear to be clock speeds equal to that of the 8800M GTS (500 core instead of 600 core on the 9800M GTS), which is still going to be a lot faster than these other notebooks. Since it's also limited to 1366x768, gaming performance should be no problem at native res... but there's a lot of headroom left untapped. Certainly, gaming performance won't be lower than the G50V tested here, unless the game happens to be CPU limited.
  • Enrox - Friday, October 24, 2008 - link

    Take a look at the Gateway P-7811 battery's life: it's about 150 minutes regarless the task (DVD playback, web surfing, H.264 playback).
    That to me says only one thing: no power management in place.
    Is that a Vista issue or a BIOS issue?
  • JarredWalton - Friday, October 24, 2008 - link

    Oh, the P-7811 is definitely doing *something* - though idle battery life is lower than I'd expect relative to the others. Actually, I think it's more that the P-7811 is doing quite well in other tasks. Remember: 17" 1920x1200 LCD, 7200 RPM HDD, and a 9800M GTS put it at a much higher power envelope than most of the other laptops. Relative to the P-6831 and m15x, the results seem to be right where you'd expect. If only Gateway had implemented Hybrid Power....
  • jonmcc33 - Friday, October 24, 2008 - link

    Did you verify that with the Power Saver setting that EIST was working properly? Use CPU-Z or similar to see if the clock speed of the FSB and CPU does change as it should. Check the BIOS settings as well.
  • CU - Friday, October 24, 2008 - link

    Yes it would be interesting to know what the cpu, gpu, fsb, and ram clocks are at when in power saving mode for Vista and OSX.
  • JarredWalton - Friday, October 24, 2008 - link

    CPU speed drops to a 6X multiplier, so at least that aspect is working. Looking at the voltages (according to CPU-Z), they're all at 1.083V except for the G50V, which runs at 1.338V most of the time. (I'm still trying to figure out what's going on there and will update when I know more.) I'm not as concerned with G50V battery life, though, since it's in a different class of performance and size; it's the U6V and similar notebooks that need to do a lot better.

    Regarding RAM, GPU, and FSB, the FSB stays locked at the base speed - 1066 MHz on the Centrino 2 notebooks. RAM likewise stays at a set speed, in this case 800 MHz. 2D GPU clocks (according to GPU-Z) are 169 MHz core, 200 MHz (100 base) VRAM on all three of these notebooks. GPU-Z also reports a memory clock of 800 MHz (400 base) for the HP dv5t, which seems wrong - I though the 9600M GT was supposed to be much faster RAM, but apparently not.
  • JarredWalton - Friday, October 24, 2008 - link

    Update: The G50V was back on "High Performance" mode after rebooting (an issue with some of the ASUS software). Setting it back to "Balanced" or "Power Saver" dropped the CPU voltage to the expected voltage - though still slightly higher than the others at 1.063V.
  • fabarati - Friday, October 24, 2008 - link

    Asus is known for their crappy batterylife in the latest generation. When compared to equal or even better specced laptops, they fall flat on the ground. It's probably because of bad ACPI coding. My F8Sa has worse battery life than my old A8Js, despite having less powerhungry parts. And the A8Js had mediocre batterylife (I reached about 3½ hours, with hardware disabled). I can barely break 2 hours, and that's when I disable hardware.

    The HP DV5 seems to suffer from the same issue, at least that's the conclusion we came to when it was tested by NBR.
  • JarredWalton - Friday, October 24, 2008 - link

    I haven't tested a comprehensive selection of laptops by any means, but if you look at the specs for the various laptops and the resulting Minutes/Whr chart you can see that if this is bad ACPI coding the practice extends far beyond just ASUS and HP. If the MacBook Pro was around 3 or 4 Min/Whr, I'd think maybe it was just some fine tuning that was missing, but it's still literally double what the closest tested Vista laptop managed.

    The best result I've personally seen on Vista to date is the http://www.anandtech.com/mobile/showdoc.aspx?i=328...">ASUS U2E, which manages 3.72 Min/Whr with the 86.5 Whr battery. That's a lot closer than the other laptops, but keep in mind that has a U7500 CPU (10W max TDP), X3100 IGP, and an SSD, plus an 11.1" LED LCD.

    Another 15.4" laptop I'm currently testing with T7250 and X4500 graphics (plus 4GB RAM, 250GB 5400RPM HDD) manages 4.18 Min/Whr, which is closer to Apple. Still, that's a 50% advantage for the MacBook, so it's not really *that* close. (It gets 204 minutes of battery life in our web surfing test.)
  • nizanh - Friday, October 24, 2008 - link

    Can't you just install Vista on one of the MacBooks?
    Sounds to me like the best testing methodology.
  • JarredWalton - Friday, October 24, 2008 - link

    See http://www.anandtech.com/mac/showdoc.aspx?i=3435&a...">Anand's article on the subject. The MacBook battery life dropped in half with Vista... but then that could just be that Apple didn't optimize for Vista properly. What we would rather see is a Vista PC that can compete with MacBook; I can't think of a good reason why it can't be done, unless Vista just has some junk that refuses to allow power saving features to fully activate.
  • BushLin - Tuesday, October 28, 2008 - link

    I think it is only fair to the other laptop manufacturers that you at least show the battery life of a Mac running Vista alongside their favourable results, I doubt anyone is still allowed to supply review samples with XP... it's not their fault Vista is crap!
  • phreax9802 - Friday, October 24, 2008 - link

    The VAIO SR series claim 6 hours of battery life running Vista. This is a 13.3" notebook with a 6-cell battery. Can you guys verify this claim, ask for a demo unit maybe?
  • JarredWalton - Friday, October 24, 2008 - link

    I'll see what I can do; Anand has had Sony hardware in the past, so maybe he can get me a laptop from them.
  • GoodRevrnd - Friday, October 24, 2008 - link

    Supposedly the SR also has "battery leakage" issues as well where it will drain over time even when it's off. I have a Z series and can hit 4-5 hours myself. That's at about 50-60% screen brightness, wifi on, pretty much everything else disabled, in stamina mode, with the processor pretty much sitting at Super LFM the whole time.
  • danwat1234 - Sunday, May 6, 2018 - link

    Still rocking this laptop today, with an X9100 Core 2 Duo Penryn at 3.45GHZ via multiplyer overclocking. Installed the 17 fin Forcecon fan while I was at it, the same that's comes with the Asus G51VX and G51J for more airflow. 8GB of RAM.
    Still my main machine today. Refuses to die even with a few years of nearly 24/7 GPU & CPU thrashing at 90C +.. The chassis is beat up though, starting to crack on the main chassis around the hinges. But, can get a used 1 on Ebay for cheap.. Batteries no longer made for it so i have a few genuine 9-cell batteries in my fridge.
    About time to upgrade to a Coffee Lake laptop maybe, but I like my Windows 7 setup.
  • falconmarley - Thursday, July 26, 2018 - link

    If you want to long time use your laptop then HP is the best device because its processing system is so fast. And it have more storage and battery life is also good. And the best thing <a href="https://hpetechnicalsupportnumber.com/"> HP Support Assistant</a> always available for customer help.

Log in

Don't have an account? Sign up now