Sorry, I have to disagree here.
Have you USED an Atom powered Windows tablet? I mean REALLY used it?
I picked one up from my friend who's a Geek Squad manager. He wanted me to try it out and let him know what I think about tweaking it. I asked him why and he said it's been getting returned a LOT.
It turns out the VivoTab runs like crap. Reviewers powder it by giving GeekBench scores and saying very subtle things like "it runs very great but don't expect PC performance". They're being VERY conservative with that statement. What they should say is, "it gets good benchmark scores but don't expect smooth performance".
It's choppy and noticeably so. I tried to de-bloat it and I was only able to notice a slight difference in performance. The iPad Retina has maybe 40% of the features that a full Windows 8 OS tablet offers, but the iPad opens apps ON demand. You hit the icon and bam, the app is up and you're running.
On the VivoTab, I probably opened up 5 or 6 of them, and with ALL of them, Word took nearly minutes to open. Nothing opened quickly and saving or writing data was always a waiting game. Having more than 3 or 4 tabs open on Chrome overwhelmed the hardware. HD videos didn't run smoothly for the most part. I had to lower the resolution. And forget gaming. The GMA graphics that it comes with isn't enough for much beyond maybe Source based games. And due to the fact that it's a desktop OS with a touch overlay, don't expect on screen digital controls for games. You would have to emulate a mouse with on screen gestures which means no movement mapped keys.
When I tried to play games, I had to run a mouse through a USB port and at that point, the tablet turned into a huge bag of accessories I had to carry around. Gaming required, at MINIMUM, a mouse and keyboard dongled with a USB hub.
Remember that performance is all 'relative'. The iPad technically has an inferior processor to the Nexus 7 and other tablets, but due to OS optimizations, it runs quicker than other competing tablets. I would say, if you do pick up a VivoTab or similar, try it out first. Because there's a reason it has the highest return rate of any tablet at stores like Best Buy.
I would honestly have to ask you if YOU have really used an atom tablet, I mean really used it. Here has been my experience:
Samsung Ativ S, owned 2 of them, one for 2 weeks the other for a month.
Asus VivoTab smart, owned one for 30 days.
Acer W510 owned 2 of them, each for 2 weeks.
Lenovo Thinkpad Tablet 2 owned 2 of them one for 30 days, the other for about 2 months and is the one I've kept.
Surface Pro (not an atom tablet, but for comparison) owned for 2 weeks.
I'd say I'm pretty qualified to comment on the day to day performance of an Atom powered windows tablet. I'd hardly say they run like "crap", that's a huge exaggeration and a disservice to your fellow forum members who may rely on you for reviews and helpful buying information.
I can honestly say that it was rare for my atom tablets to slow down, and they ran everything I threw at them smoothly including biggies like Photoshop and Office. I would have to assume you had a flawed or broken tablet. Things like open tabs and your performance are a HUGE mystery to me, I regularly run IE10 with 10+ tabs open and I can minimize it and run the desktop with NO slowdown anywhere, sometimes I even have 2 IE10 windows open each with a bunch of tabs, for web browsing these are pretty potent machines. Contrast that with my wifes ipad3 which CHOKES badly on 3 or 4 tabs, usually it doesn't even get to choke, as it usually just force quits as it runs out of memory. Worse is if it doesn't choke it will load the pages very slowly, as you scroll down the ipad is still loading pages, so as you scroll down all you see is checkerboard for several seconds until its loaded, then again when you scroll down again. You get no such nonsense on an atom tablet. Now granted a more fair comparison would be the ipad 4, but honestly I haven't tried one out. Other than the horrible internet browsing performance on the ipad3, I can't say it lagged much though in most everything else I did, although it did have this annoying habit of just force quitting programs at times which I would assume was it just simply running out of memory. Let's not even bring up things like Flash on the internet, which my atom tablet ran with aplomb, no stutters or slowdowns, the ipad can't even run these websites at all.
As for gaming performance, you are 100% correct, the atom tablets SUCK at games, no ifs or buts about it. Hopefully this will improve, but certainly the ipad and android tablets trounce it in this regard. New chips with new video power are coming though, but hardware isn't the full answer and developers and MS have to step up to the plate. If you buy your tablets for gaming then the Atom ones are not for you, but I do mostly web browsing and business on mine so it's perfect for me, I wish I had the time for games.
I'm still amazed on a daily basis that I can run things like Photoshop and Office, that I have a "REAL" computer with 10-12 hour battery life and in a package as small/thin/light as an ipad, something that ran the internet as it was meant to be, ie: Flash, etc. Once again though for anyone thinking about Atom, WAIT until the new chips come out, either baytrail, or haswell and make your purchase then. But I bought my first Atom tablet about 6 months ago in December and have enjoyed them enormously since then, I'm looking forward to the hardware revisions.
BTW Chrome sucks, IMO it sucks on a regular desktop, but the Atom version of Chrome is horrendous. IE10 is really quite nice, it zooms in / out incredibly smoothly for example, and it can run a ton of tabs and is pretty light on memory. I'm talking about the desktop version of IE10 btw, as I don't run the garbage Metro IE10 ever.