My friend who has a Dell Inspiron 530s which has a slimline case was wondering what gpu would be best for gaming. The best i found was a HIS iCooler Radeon 7750 for $110.
So would this gpu run BF3 on any settings with decent frames at around 720p or 1440x900?

Also would his setup cause a bottleneck or lag in the game?
Intel Pentium Dual Core E5200 @2.5Ghz
Unknown motherboard
4gb of ddr2
250 watt psu

Dont think a the 7750 requires a 6pin connector.
 


Why get a card as good as the 7750 if you're not going to use it properly? OP, a mere ~$30 350-400W PSU from Antec, Corsair, Seasonic, PCP&P, or XFX would be ideal.
 



my statement was more supposed to imply not to ever change that resolution to 1920x1080 or possibly anti aliasing to some extent, then the cpu may or may not start to take a heavy load and hit that 100% mark which would then hurt performance. What I was trying to imply was that if your cpu is having a hard time, lower the settings if necessary.


and i whole heartedly agree on a psu change as well.
 
Well, if he wants to spend a little bit of money, he can get a cheap case and a new power supply to support his new graphics card. There are some pretty dirt cheap cases out there that pretty much do their job.

Here's a cheap case. I would add some fans:
http://www.newegg.com/Product/Product.aspx?Item=N82E16811154095

Might be one of the best deals on Newegg right now
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371029

Here's a fan:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835209055

You can put a fan in the front and back of that case.

That would be my recommendation. He can then play BF3 AND brag to his friends about his custom computer.
 
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147123&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&AID=10446076&PID=3938566&SID=

With today's promo code, it's $21.99 and it already has both a 120mm intake fan and an 80mm rear exhaust fan and is one of the better low-budget cases (better than Apex). Agreed on PSU choice.
 
There is a low profile 7850 made by A-Fox that would give quite a bit more performance. Not sure if it requires a 6 pin PCI-e cause the pics I saw didnt show the back and the deatils on their page didnt say it did. So im assuming it gets its power thru the PCI-e bus.
 

drums101

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I would stick with the 7750 with that pentium dual core maybe a 7770....as far as cases go the rosewill one that blazerthorn posted is a decent case...as he said comes with a front and rear fan...I have built a couple office systems with that case and it looks professional and does the job for cheap