PC gaming performance on Windows 8: A hard-data analysis

In the transition from Windows 7 to Windows 8, Microsoft has implemented scads of changes to improve the operating system's performance and responsiveness. To wit: The DirectX programming interface adds more robust 2D functionality, and in Windows 8 it helps render all desktop windows, and even accelerates the new Start screen.

We applaud windows that pop up faster, and we appreciate how applications like Word scroll more smoothly. But what do all the under-the-hood Windows 8 changes mean for PC games? Although my subjective gaming experiences have been positive, I wanted hard data. So I took a moderately high-end (and home-made) gaming PC, played some games, and ran a bunch of performance tests to determine the differences in gaming performance between Windows 7 and Windows 8.

[ FREE DOWNLOAD: Windows 8 Deep Dive Report | Windows 8: The 10 biggest problems so far ]

Hardware and software setup

The system I used is a current-generation PC carrying an Intel Core i7-3770K Ivy Bridge processor running at the default speed of 3.5GHz (3.9GHz maximum Turbo clock), 16GB of DDR3-1600 memory, and an Asus GTX 680 graphics card, based on Nvidia's reference design. I built all of that on an Asus P8Z77-V Premium motherboard and a Corsair 850W power supply. Note that the hard drive is a standard, 7200-rpm 1TB drive, rather than an SSD.

Next up was installing the games and benchmarking software. I ran the following tests.

Futuremark benchmarks: These included 3DMark 2011 (DirectX 11), 3DMark Vantage (DirectX 10), and PCMark 7. The last benchmark offered a quick sanity check for any dramatic differences in system performance.

Unigine Heaven: I jacked up hardware tessellation to extreme to hammer the GPU a bit.

Game benchmarks, using Crysis 2, Shogun 2: Total War, Metro 2033, and Dirt 3: I recorded all of these results at 1920-by-1200-pixel resolution with 4x multisampling antialiasing enabled. All of the games I used for the benchmarks were installed via Valve Software's Steam service.

Other games: I installed and ran several other games, including Civilization V, Mass Effect 3, and Bioshock 2, for extended play sessions to check out compatibility and subjective performance.

I ran a first pass of benchmarks using Windows 7 (Service Pack 1 installed), along with the latest Windows 7 drivers. After that, I installed the Windows 8 RTM plus all updates and drivers, and then reran all the tests.

Before diving into the performance results, though, I should talk about some issues I encountered while installing and running the games and benchmarks.

Gotchas

Users who transitioned from Windows Vista to Windows 7 saw some performance gains in games, but those gains were fairly minimal. Although the initial shipments of Windows Vista had some serious bugs and other problems that adversely affected game performance, updates to Vista over time fixed most of them. The underlying rendering technology in Windows 7 differed in only minor ways.

Windows 8, due to its complete restructuring of the underlying desktop rendering system, is quite different. The Windows 8 kernel has changed as well. The net result is that anything requiring driver-level access needs to be rewritten. In the past, some digital rights management schemes might have used drivers, but this practice is less common today. Even so, I ran into some problems worth mentioning.

Steam games: When Steam puts a game shortcut on your desktop, it's really a URL shortcut, not a shortcut that points to a specific program file. That means you can't right-click the shortcut and pin it to the Start screen. (This limitation is akin to the situation on Windows 7, where you also can't right-click and pin a Steam game to the taskbar or Start menu.)

If you want your Steam game to appear on the Start screen, you need to drag or copy the shortcut to the Start Menu folder, which is most often in C:\users\AppData\Roaming\Microsoft\Windows\Start Menu. On the other hand, games installed through EA's Origin download service properly create a shortcut in the Start screen as well as on the desktop. If an EA Origin game doesn't appear on the Start screen, you can right-click the shortcut and select Pin to start.

Games for Windows Live: Imagine my surprise when I tried installing Dirt 3 only to see an error message declaring: 'Games for Windows Live has known compatibility issues.'

Way to go, Microsoft! That just illustrates what an orphan the entire Games for Windows Live initiative has become. The good news is that if you examine the error box carefully, you'll find a support link that directs you to an update page for the new Games for Windows Live client. Don't be fooled by the 'Games for Windows Marketplace Client' label on the page; this is the software you need. I recommend downloading and installing the new client before you try to install any Games for Windows Live games. Note that Bioshock 2 and Dirt 3, two titles in our benchmarking and subjective-testing suite, are both Games for Windows Live titles.

SecureROM: SecureROM is DRM software, and it's found on quite a few games. From the name, you might think that it's focused on disc-based titles, but SecureROM now has an online-activation component. When I tried to install Batman: Arkham City, a SecureROM error popped up to tell me that the SecurROM software was unable to run. A visit to the SecureROM support site linked in the error message was no help. What finally worked was rebooting the systemthen the Arkham City activation process could complete as needed. However, this proved to be pointless, as I got an error message stating that I'd activated Arkham City on too many systems, probably because I'd been using it for benchmarking on a number of different PCs (though never at the same time). This type of activation is ridiculously onerousyou should be able to run one instance of a game on any system you ownbut that's a subject for a different rant.

I've run only about a dozen PC games on Windows 8 to date, and these are the only issues I've encountered so far. However, I haven't run some of the older games in my collection. Older games on Windows 8 might be a good topic for the future.

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