EGPU Confused as HELL

I am having a a lot of trouble and a lot of confusion with Egpu.. I have read everything I can find and tried to make it become clear but, its not working for me.

I have a acer 6920 and I want to put an egpu on it. I am not sure what parts I need or what.. I am just so confused. Can you guys make me a list of what I need to buy to get the best optimal performance. My budget is 350 dollars.. I hope you can help me because I have tried to do my own homework and I just can do it. I live in the united states if that matters.

Like do I need PE4H or PE4L... I am not sure at all and stuff. can just make a good Egpu build.

 

External GPU. Its not something you put inside the laptop.

Its like an external HDD. When storage is not enough.. So when your notebook internal graphics are not powerful enough.. you use an eGPU

 

What will happen if you put a super powerful processor, for example , an AMD Radeon HD Crossfire 7970m (Crazy GPU, probably the most powerful one on the market now) together with an ultrabook? Will it explode or something?

 

The 7970m is a mobile processor, eGPU is for desktop GPUs.

 

That is not true. actually the first implementations of external gpus were using mxm mobile graphic cards. and they were great because they were mobile and didn't require an external psu.
of course, performance and upgradability were very limited.

 

Nice. Are they still available? Which ones were available in the past? (Links?)

 

search for AMD XGP on the forum. they were great because you could upgrade the mxm card and because it used a bottleneck free interface. a custom pci-e 16x link. much better then thunderbolt.
check the external pci-e cable specs on my sig and the cables on my image.

the thing is, people use a desktop egpu mainly because they can't upgrade the notebook internal gpu.
in a perfect world mxm was implemented in every notebook and you could go to a store and buy a compatible mxm card like you can today buy any desktop graphic card.

notebook manufacturers refused to do it, because they earn much more money selling new notebooks then just upgrades.
That's why external pci-e was never implemented. the specifications are even very old.

there was always the problem of the bottlenecked interface. Thunderbolt was never meant to be used as an interface for a gpu. but because it has a very high bandwith it's great for the porpose.
but even thunderbolt bottlenecks the gpu. pci-e 4x isn't enough. there will be a performance penalty of about 10%. which is great compared to current solutions.

 

Thanks for the insight. I missed out on that news.
http://forum.notebookreview.com/gam...-graphics-5870-eyefinity-xgp-box-netbook.html

Its no wonder that everything in this industry is about Planned Obsolescence and creating more and more electronic waste on the planet.

 

I was curious to know if anyone knew if my laptop was compatible with the DIY eGPU. I'm looking forward to playing guild wars 2, but as is with intel HD Graphics it won't be possible. I want to know if possible what to buy to build and whats the cheapest Graphics card that will handle the setup. Thank you in advance. Even a little help and I'll continue doing research.

Dell Studio 1569.
I'm running windows 7 home premium 64 bit.
intel core i5 m 450 @2.40GHz.
intel HD Graphics.
8GB RAM(7.80 usable).