Help me with GPU and PSU ...

[doukno]

I have recnlty bought a VS450 watt Psu ...I live in india and here the price is very high cmpred to US. I want to buy a Graphics Card.So i went to a shop nearby and asked them if they had 7750 . They asked abt my mother board and said that since my mobo is pcie 2.0 . It wont work properly ... Is that true guys? 🙁
I have a Asus p7h55,-mlx mobo...please can any help me?
Also will 7770 work in pcie and vs450??

My specs-
i3 530
2 gb ddr3
500 gb sata
Asus p7h55mlx mobo
HD 4350
Crappy monitor wid 1024 x 768 ; )



Also can a

 

[shamsmu]

No, all the pci express 3.0 gpus are backwards compatible and should work fine with pcie 2.0 motherboards. The performance difference is not even 5% if any.
Pci express 3.0 would require you to change your motherboard and your cpu to third generation intel i5/i7 so no point in doing that. Get the hd7750 your current psu should support it if it supports the hd4350 since the hd7750 only draws about 43w maximum.

Edit- Vs 450 should also be able to handle the hd7770 soundly so you may go for that. Although, the hd7750 is more than good enough for your resolution

 

[doukno]

Then ill be getting a hd 7750 ...are you sure it will wprk in pcie 2.0 slot?

 

[shamsmu]

Then ill be getting a hd 7750 ...are you sure it will wprk in pcie 2.0 slot?

ah yes I am pretty sure

 

[doukno]

Just one question..my friend has same specs of mine with a4350 but running on a cheap 450w psu with 16a on 12 v... please say that will 7750 work on his system?

 

[doukno]

Can anyone reply to my above question please?

 

[shamsmu]

Can anyone reply to my above question please?

yes its true it draws less power than the hd4350 only 43w maximum load

 

[doukno]

That means he can run it on his crappy psu?

 

[shamsmu]

That means he can run it on his crappy psu?

yes