Valve Software has released its
survey of gaming PCs. While it would be great to get general numbers from someone like
Intel or
Microsoft, this probably gives a good picture of PCs, but it may be biased a bit on the high side.
It would be interesting to see the evolution of these specs over time, but the picture seems pretty clear - people aren't replacing their PCs very quickly anymore... I say this typing on my ancient
Sony Viao laptop that has a 1.6 Ghz CPU.
If you want to reach the largest audience, you have to shoot for minimal specs. If, say, you want to reach 95 percent of the market, what kind of PC are you looking at:
Less than 512 MB of RAM(!). Though the data is at a fairly high level, I would guess that you would lose 25% of the total game audience if you required more than 512 MB. This is almost certainly a function of hardware manufacturers cutting corners on the RAM and less sophisticated users not upgrading memory. To reach 99 percent of users, you would design for 256 MB.
Less than 1.7 Ghz CPU. To get to 99 percent of users, you would have to support less than 1.4 GHz... I'm not even sure HOW MUCH less than 1.4 Ghz.
Really minimal graphics. Graphics cards are all over the place. The industry complaint about people having poor graphics capabilities certainly seems to be a legitimate, but it is a reality. Even more importantly, among the gamer crowd, the market penetration of high end graphics cards is really, really low (probably totaling 20 percent).
DirectX 7 Path is a default on just over 4 percent of the video cards. It looks like DirectX 9 Shader Model 3 Path is only supported on 60 percent of gamer PCs.
15 inch Displays. just over 95 percent of users are at this size (probably a lot of laptops). 16 inch and 17 inch are the most common sizes. To reach 99 percent of users, it would be wise to design down to 13" displays! Really large displays, 24"+, seem to be growing rapidly in popularity.
32 MB Video RAM. This gets you close to 99 percent. 64 MB Video RAM is still common enough that you would only reach 90+ percent of the market.
1024 x 768 resolution will get you almost to 99 percent of the surveyed machines. 800x600 still exists.
32-bit Pixel Depth - While people may not have high resolution, they want their colors. This would get you over 95 percent. Pull back to 16 bits for 99+ percent.
Audio is all over the place, so, shoot low. No microphones either.
Windows XP is the dominant operating system and while Vista has 14+ percent penetration, DirectX 10 is under 10 percent.
DVD will reach over 95 percent, but to get to 99 percent, use a CD.
Distressingly,
5 percent of PCs have less than 5 GB of hard disk available! and 10 percent have less than 10 GB, so stay small.
It is probably worth noting that these numbers probably skew slightly high as these are people who play games on
Steam (the survey size was almost 1.73 Million PCs).