How to tell if my router can handle all my devices?

I'm 15 and our router is by Netgear. Its only about a year and a half old and I have noticed that when my brother uses his PS3 while I'm streaming videos from Youtube, his system will lag out quite a bit. And we have A LOT of devices on our network. We've got my dad's Dell Precision M4500 and Precision M4700, my mom's Dell Inspiron 1545, my Macbook Pro 13", my brother's 13" Macbook Air, both my brother's iPod touch 4th generations, my iPhone, iPad, Xbox 360, my brother's PS3, and my parents' iPhones. I have been considering getting the Apple Time Capsule to help handle all the devices and maybe the Airport Extreme, also by Apple.
Is that too many devices for the router? Or do we need up have our plan sped up?

DO a speed test and know how much bandwidth you all are sharing…

Your are all sharing one connection… A router is meant to be shared… But connections determines the speed…

You would need at least a 10mbps connection… Giving you all (each device) at least 1mbps each

That's a lot of devices man. Personally, when we have just 3 laptops, and 2 desktops hooked up and used to our router it lags out my games. Our router is somewhat new though. If I were you, I'd ask your brother to keep one of his iPod's offline, see if you can get your dad to turn off one of his computers. I'm unfamiliar with the Apple Time Capsule and the Airport Extreme so I can't help you there. Just makes sure that you have no unnecessary devices hooked up.
Just remember that there's a limited amount of bandwidth, it needs to be used thoughtfully. Also, consider hooking up your computer to your network with a wire. Wire always beats Wi-Fi.

This is probably one of the best routers on the market. Consider buying it to help you out.http://www.amazon.com/ASUS-Dual-Band-Wireless-N-Router-RT-N56U/dp/B0049YQVHE

Your router can handle up to 253 devices. The problem is not the number of devices. It is the band width. Streaming is intense use of bandwidth. There are a few things that you can do. If the router can handle it, you can set it so that it prioritizes traffic to the PS3. This may make your video lag but normally, it can handle brief gaps. Another thing is to just get more bandwidth. As time goes on, we're finding more and more things to do with it. If you need to be able to handle three streams at the same time, for example, you need at least 15 Mbps.

  • Will 8GB on an IPhone handle all my apps? I've been looking for an IPhone 4s because my quit on me. The one I have my eyes on has 8GB. I usually download social site apps like Instagram, Facebook, Vine, and every other social media site made. I probably use 3 or 4 a page with a new IPhone with the already installed apps. Will 8GB be enough space for all my apps?
  • What wireless router can handle many connections? When all the family is home we can have at most up to 15 devices connected to the router (5 iphones, 2 tablets, 4 laptops, 2 pcs, PS3, and a Smart TV). When they all automatically connect to my current wireless router it becomes very slow. What is a router for about $50-80 that won't get bogged down from so many connections?
  • What's the difference between a cheap router and a good router? Just wanted to know the difference between a cheap router and an expensive router, I know that is a very broad question, I'm just a bit confused on how a router works. Does it increase my Internet speed on multiple devices? I get 50Mb per second, Well at least that's what I pay for. I have a PS3 two iPhones and a tablet, as well as a desktop PC that is wireless. Can anyone recommend an excellent router under $150
  • Router gives PC Internet, but none of the other devices? I have a Belkin n300 Wi-Fi router. My PC has Internet access, but whenever I try to access it on another device (such as my iPhone), my network shows up but will not connect. I'll type in my password, but all it does is buffer. It also won't connect to my Xbox. Is there a way to fix this?