Which parts to take?

[lanceor]

I'm not sure which stuff from the new system should I combine with the old one. (This is for gaming)

New system
CPU : Intel Core i5 3450 3.1-3.5Ghz (Quad Core)
PSU : Cooler Master GX 750watts
MOBO : lga1155 Asus P8H77 M PRO
Vcard : Sapphire HD 7770 Vapor-X 1gb/128bit ddr5


My system
CPU : Intel Core i7 920 2.66Ghz (Quad Core)
PSU : Thermaltake Lite 600watts
MOBO : lga1366 Intel DX58SO
Vcard : Sapphire HD 5770 Vapor-X 1gb/128bit ddr5


My friend say I should get the new system entirely, because the i7 is an older generation.

How do you know if a board can support the CPU? I heard there are only a specific types of boards for i-7's

What do you guys say?

 

[moornix]

Keep the i7 and mobo. The performance boost from the i5 won't be that noticeable for gaming. Use the money you save towards a better GPU like a 7850 or 670 if you can fit it in your budget.

Drop the PSU on both. Get Corsair, Antec, Seasonic or XFX. 750W is overkill for a 7770.

 

[lanceor]

Keep the i7 and mobo. The performance boost from the i5 won't be that noticeable for gaming. Use the money you save towards a better GPU like a 7850 or 670 if you can fit it in your budget.

Drop the PSU on both. Get Corsair, Antec, Seasonic or XFX. 750W is overkill for a 7770.

So 600w is sufficient enough? I really don't know how much watts should a PC need

I'm also gonna crossfire 7770 sometime in the future, I don't have the budget to buy a single 7850 in one drop, I will probably buy the second card(after the first 7770) after 2-3months

 

[moornix]

If you keep your i7 and mobo, then you'll be able to buy a 7850. The performance boost is worth it.

Yes, 600W is enough, even for crossfire on a 7770. 500W is enough if you go with the i5 processor.
For future reference:
http://images10.newegg.com/BizIntell/tool/psucalc/index.html

Edit: CPUs fit into specific sockets. Motherboards will specify which type of socket it possesses so you know what kind of CPU will fit.

 

[lanceor]

If you keep your i7 and mobo, then you'll be able to buy a 7850. The performance boost is worth it.

Yes, 600W is enough, even for crossfire on a 7770. 500W is enough if you go with the i5 processor.
For future reference:
http://images10.newegg.com/BizIntell/tool/psucalc/index.html

Edit: CPUs fit into specific sockets. Motherboards will specify which type of socket it possesses so you know what kind of CPU will fit.

Hmm, i think i didnt explain well the new system is a completely new pc setup for my dad, I got permission to take some parts of it to upgrade my old setup. But thanks so much for the replies!

 

[lanceor]

Best answer selected by lanceor.