In-Depth with the Windows 8 Consumer Preview
by Andrew Cunningham, Ryan Smith, Kristian Vättö & Jarred Walton on March 9, 2012 10:30 AM EST- Posted in
- Microsoft
- Operating Systems
- Windows
- Windows 8
To test claims of faster booting and lower memory usage in Windows 8, I installed a fresh copy of Windows 7 on each of three different computers of varying vintages—a Dell Latitude E6410 with 8GB of RAM and an SSD, a Dell Latitude D620 with 2GB of RAM and an HDD, and a lowly netbook with 1GB of RAM and an HDD. More complete specs for these systems can be found on this page, in which I discuss the computers on which I’ve been running Windows 8. Each computer had the most recent drivers for all of its hardware installed.
Startup time is defined as the amount of time between when the power button is pressed and when the Windows login screen is ready for input. POST time is defined as the amount of time between when the power button is pressed and when the “Starting Windows” boot screen first appears. After measuring all times in Windows 7, I reformatted the hard drives, installed Windows 8 and any needed drivers, and measured boot times in the same way.
Microsoft claimed that Windows 8 featured improved boot times, and that claim is definitely true—boot times vs. Windows 7 are down across the board. These reductions are due to some architectural changes that Microsoft has made—a Windows 7 shutdown would completely purge the OS and all running programs and user sessions from memory and then re-load a fresh copy at next boot. Windows 8 unloads the user session and running programs from memory, but saves the core OS to disk from RAM as it would do if the OS were hibernating. The result is a much faster startup time all around, even on mechanical HDDs. If, for whatever reason, your system doesn’t support hibernation (or if you’ve turned it off), these boot time advantages will evaporate.
But what's that, you say? How is a netbook that barely meets the minimum system requirements booting more quickly than a late-model Dell Latitude? Perhaps these numbers will clear things up:
This is one of the instances where hardware designed for Windows 8 will probably have an advantage over older hardware that has been upgraded—as you can see here, a computer’s time to POST is a larger than ever percentage of total boot time. Thanks to its newer hardware and SSD, the Latitude E6410 only takes four or five seconds (!) to boot to the login screen in Windows 8, but its nearly 22 second POST time means that both the Latitude D620 and the lowly netbook are ready to use more quickly. Systems designed for Windows 8, especially those configured to use UEFI instead of legacy BIOSes, can have drastically shorter POST times, and new computers equipped with SSDs may well go from powered-off to ready-for-input in just a few seconds.
To test claims of reduced memory usage, I took the same machines and let them idle at the desktop with only the Task Manager running. Both the Windows 7 and Windows 8 installs used the same drivers, so any background processes running on one OS were also running on the other OS.
We see marginally lower base memory usage in Windows 8 compared to Windows 7 on the two Dell laptops by a noticeable but not staggering amount. The netbook, with its 1GB of RAM, sees about the same base memory usage under both operating systems—because of the extra caching and preloading that's going on under the hood, my experience has been that Windows 6.x's memory usage increases when you give it more RAM to work with. That computers with 2GB and 8GB of RAM would have a higher base memory usage than a machine with 1GB of RAM shouldn't be surprising.
These slight savings won’t keep you from needing to upgrade your RAM if you’ve been thinking about it, but it’s impressive that Microsoft has been able to hold steady or slightly decrease the amount of RAM used in spite of the additional features (and remember, since Windows 8 includes both anti-virus and anti-spyware protection built in, these numbers should look even better after an install of Microsoft Security Essentials or another anti-virus package on the Windows 7 machines).
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RavnosCC - Monday, March 12, 2012 - link
Very annoying till I went through Microsoft Help and discovered I will not be able to "snap" apps with my standard 4:3, 1280x1024 screen. boofRESHOiL - Monday, March 12, 2012 - link
This time around they added a great setting "Make Everything on my Screen Bigger".I didn't have to mess with loading my custom fonts, sizes, DPI, etc. to make my system visible from my couch on my 56" DLP. It did seem to make Metro Apps bigger but not desktop apps or the desktop experience.
Also, I've gone through a ton of small media keyboards and none are as easy as my remote. Since Metro, and all tablet/phone OSes are more geared towards consuming media/data rather than creating it... not saying they can't, but they do better at consuming, I thought for sure they would have accepted windows remote control commands in all the Metro Apps, to my surprise not one does. Of course the arrow keys and OK/Enter key work, but Info, Back, etc have no function in Metro Apps. Just a few changes and Metro becomes the best 10' full OS ever, mainly that it needs to work with remotes. Also, Media Center hasn't changed at all... I think it could use a little Metro and hope it does get it in the final product.
lilmoe - Monday, March 12, 2012 - link
I wonder how your video playback batter test would perform with well encoded HD videos with hardware-accelerated playback...I'm sure most of you guys know all about video encoding and decoding... GPU video decoding (my personal experience) consumes a LOT less power than software decoding done on the CPU. Yes, GPUs generally consume more power than the CPU, but it's a lot easier for the GPU to decode Full-HD videos than it is for the CPU (by an order of magnitude), also arguably more efficient.
We all know that hardware-accelerated video players (MPC-HC and Windows Media Player included) support that feature. But you never mentioned if it was enabled in your setup. So I'm assuming you didn't use any sort of HW Acceleration, and therefore, you had 2 or more cores of your test setups running in each test for decoding the video while playing the videos.
On my HP DV6 Core2Due T6400 laptop, properly encoded MP4 videos run with almost 0% of CPU utilization, and with the right codec (I use the FFDShow with DirectX Video Acceleration) even high profile MKV files run with 5-15% cpu utilization (otherwise 50-100% of CPU utilization. I use Windows Media Player since it doesn't utilize as much CPU power as MPC-HC.
My laptop stays 2-2.5 hours on battery if i'm using software decoding, but lasts well above 3.5 hours with HW-Acceleration enabled... I wonder how that will affect your setup?
mutatio - Monday, March 12, 2012 - link
I'm glad the reviewers found some redeeming qualities to the OS. All I can say is that I was not impressed with MS' mobile OS. It's strong in concept but just tacky in appearance, like some city traffic symbol maker was in charge of the design. Windows 8 does no better IMHO and this honestly looks like a crap sandwich waiting to blow up in MS' face. Serious? "It's very useful once you learn all of the 50+ new keyboard commands!" You have to be kidding me. I know you all are hardcore nerds here working at Anandtech but there is a reason W8 is getting slapped silly in the consumer oriented reviews. I saw a review the other day that quite literally said, "I enjoyed the review of Windows 8 so much I order a 21" iMac." Tempered indeed.FuzzDad - Monday, March 12, 2012 - link
No issues with SLI, my watercooling programs...my configs for gaming...the install went solid. I have a mouse locking problem with Logitech keyboards but there's a work-around until they fix it. I didn't like the interface at first (it isn't intuitive) but once you get to the point where you accept Metro=Start Button it all kinda makes sense. I think the GUI is snappy and smooth and it grows on you. I also think they're probably writing off Windows 8 for the desktop/business use...unless they throw the start button on there...and only after that would there be any talk of it going widespread on desktops that have not yet moved to Win7.I think their strategy is simply get back to a three-year release schedule and into the tablet space as quickly as they can. TBH...this OS is as good as Win7 w/new interface...if they had offered the start button as a hard-core option I think all the howling winds we hear now would have been a soft sea breeze.
jabber - Tuesday, March 13, 2012 - link
...who exactly is going to buy a Windows based Tablet?It's way too late surely? It's the Zune all over again.
The Corp bosses will all have iPads so will be pushing to use them in their work surely? The iPhone through this method is now becoming the standard corp phone of choice at the cost of BB.
MS isnt going to get a look in on this one.
I am a Zune Mk1 owner, just in case.
lilmoe - Tuesday, March 13, 2012 - link
you'll be surprised how many people there are who didn't go with the hype and rejected iPads and Android tablets just because they're not "Windows"....What's amazing about this release is the first impression i heard from lots of people who saw it on my laptop. Lots of them said the very same thing: "Wow, Windows now has *windows*! Everything is in front of me an I don't have to look for anything!"... i haven't noticed that myself, but surely, what they said was true.
jabber - Wednesday, March 14, 2012 - link
"you'll be surprised how many people there are who didn't go with the hype and rejected iPads and Android tablets just because they're not "Windows"...."Well good luck to the three of you I say.
somedude1234 - Tuesday, March 13, 2012 - link
Great article, the efforts of the whole team come through in the depth and quality of the report and I'm looking forward to reading the follow-up articles.I use Windows 7 every day to get real work done.
I'd appreciate any feedback from the team (or other AT readers) on the following question: Will the UI enhancements in Windows 8 offer any benefit to me? Specifically, is there anything in Win8 that will help me be more productive in my daily use cases?
On my multi-monitor primary workstation I have the Win7 start menu running vertically on the side of one of my monitors. I often have 3 "pages" on my taskbar of windows open between: outlook, word, excel, powerpoint, firefox, PDF files, text files, explorer windows, putty sessions, and skype or MSN chat windows.
In other words, I am doing a lot of multi-tasking and waste a lot of time doing context switches as needed. Even with 2 or more monitors available, I never have enough screen real estate to have all of the various applications and windows open without ever needing to re-arrange all of the windows.
Win7 provided marginal improvements over XP, I especially like the ability to quickly snap a window to the left or right half of a given monitor. I wish MS would have expanded on this to allow me to snap to the top and bottom halves as well.
I've used a number of 3rd party applications over the years to enhance window management, but invariably they end up either being clunky, unstable or requiring so much additional effort to negate the goal of improving productivity.
Does Windows 8 actually add anything to make window management better/easier/faster/more powerful for those of us that are really multi-tasking all day? Metro seems to be completely consumer focused, what about the professional users?
Th-z - Wednesday, March 14, 2012 - link
I've tested it, I don't think you'll find improvement for your usage scenario. In fact it can actually slow you down because they remove Start button. If you want to launch normal desktop apps quickly, you basically have to pin them to taskbar from Metro UI, or use the same enabling-Quick Launch bar trick that people use when they went from XP/Vista to Win 7. There are also third party programs such as Start8 that can bring the Start button back.I find it ironic that people have to use third party program for basic functions to circumvent Microsoft's devolution in UI scheme or stubbornness. I have to use a third party program to enable hovering scrolling in different panes in Windows Explorer (it's still not there in Windows 8).
There are so many ways they can improve desktop UI that I can list that would put OS X to shame, and you even suggest the horizontal snap that can improve desktop usage that many people would probably use. Unfortunately, they're too busy toying with Metro UI. I've always thought Microsoft is a company good at software engineering, but bad at user interface.