The official Games for Windows site lists a total of nine games and some of those are rather suspect – Hellgate: London suffered an unfortunate early death, while Age of Conan's DX10 implementation still isn't live (there's a cut-down client being tested right now, but many of the effects that were shown off nearly a year ago aren't present).
Crysis is still one of the platform's best looking titles, although it's hardly cutting-edge now. For many gamers, the lack of any real benefit to DX10 is still the problem – it just doesn't do enough to warrant going out of your way to upgrade to. Sure, there are some nice effects, but clever shader programming can knock out incredible effects in DX9 too. Cast your eyes over GRID's loveliness for simple proof of this.
Game developers don't want to limit themselves to a niche of the existing market just for the odd effect either – it's simply not worth it. You only need look at the popularity of the likes of WoW to see that games don't need hi-tech visuals to be successful.
You also shouldn't forget that a fair chunk of games are console ports and that Xbox 360 doesn't have a pile of DX10 cleverness hiding behind the red ring of death – it's DX9 in nature (although admittedly with some clever DX10-like tricks up its wizard's sleeve).
So we're not convinced about DX10 as a selling point for an OS although, to be fair, it's a great way of showing off the capabilities of your graphics card. It's telling that DirectX 11 isn't going to have quite the same marketing push that its predecessor did (who can forget the ridiculous Flight Simulator images Microsoft pushed out to show how much better DX10 was than DX9). In other words don't expect any DirectX 11 only games to appear any time soon.
A more pertinent question these days is whether to install a 32-bit or 64-bit OS. Windows XP started the ball rolling with x64, but in truth the driver support was too ropey to make this a serious consideration – indeed, we couldn't get our test machine stable enough for testing in Windows XP x64. Vista and 7 are a different story though, and it's the 64-bit versions that show the best performance in Far Cry 2.
Part of the reason that the 64-bit versions do so well is because the operating system and game/ benchmark has access to the full gamut of memory. Our test rig has 6GB of DDR3 and the difference this makes to the benchmarks is obvious. Memory is one of the main driving factors in a move to a 64-bit OS and as prices of RAM continue to drop, so that option becomes more and more appealing.
In Far Cry 2, for instance, we saw an increase of two or three extra frames per second in-game, plus faster loading times for the actual games themselves, both for initial loading and for levels. Factor in much smoother alt-tabbing and it's easy to see that the move to 64-bit brings many benefits and no obvious downsides.
Speaking of loading times, our testing highlighted some interesting numbers and some confusing ones as well. Far Cry 2, for instance, may run relatively slowly in Windows XP, but it loads incredibly quickly in it – twice as quickly as it does in Vista 64.
GRID loaded quickest on the 64-bit operating systems, which points to efficient use of memory once again. The best loading time for the OS goes to Windows 7 though, rolling in at just over a minute. Note that these times were recorded from the moment the power button was pressed, and so include the POST as well.
The choice of which OS you should go for isn't just about loading times or even frame rates. It's also about usability. It's about how comfortable you are with using it and it's about compatibility. Windows 7 is commendable at this stage for just working with pretty much everything we threw at it (although for some reason on this machine it wouldn't play ball with Fraps). Once again, this gives us high hopes for its future, particularly when compared to the ill-tempered Vista launch.
Only once you've used an operating system can you really know if it's for you. Try as we might, we're still not comfortable with Vista, while Windows 7 doesn't irk us anywhere near is much. It's a personal thing. Indeed, every time we mention that Windows Vista is less than perfect we get plenty of readers complaining about the fact. Maybe all our messing around with operating systems on a daily basis has spoiled us, but given the choice we'd still go for Windows XP for pure DX9 speed and Windows 7 64-bit for the good all-round experience.
Should you change your operating system just to get a few more frames out of your hardware? That really depends on what you use your machine for. If, for instance, you overclock your rig and are out to get the fastest frame rates around, then sticking with Vista when you could be getting more frames out of XP seems churlish.
We're not talking double figure differences here, but then again, your overclocking generally only amounts to a few extra frames as well. If, however, you want to run DX10 games, then Vista is in surprisingly good shape – it's by far the fastest way to enjoy the likes of Far Cry 2 and there's no question that your games will run.
Ideally you'll have 4GB of RAM or more and be able to run Vista 64 too. And what of Windows 7? It's fast, particularly for number crunching, and can perform well with the latest games, but if you're looking for speed alone it doesn't quite beat Vista yet.
Welcome to ATTI Fun and Games
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