250 dollar budget pc (assuming case,psu,OS,and HDD is free.)

[TheXpertnoob]

I am actually "upgrading" an old pc but I'm basically only using the parts mentioned above from it. Which means I'm putting in a new motherboard, replacing ram, gpu, and cpu. I do have a few concerns about the upgrade (listed after upgraded parts)

List of parts
- 1 GB GDDR5 Radeon 7750 ($80)
http://m.newegg.com/Product/index?itemNumber=N82E16814161403

- ASRock H61M-DGS LGA 1155 Intel H61 Micro ATX Intel Motherboard ($50)
http://m.newegg.com/Product/index?itemNumber=N82E16813157315

- Intel Pentium G630 Sandy Bridge 2.7GHz ($68)
http://m.newegg.com/Product/index?itemNumber=N82E16819116406

OR

- Intel Pentium G860 Sandy Bridge 3.0GHz ($72)
http://m.newegg.com/Product/index?itemNumber=N82E16819116405
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As you can see, I still left $50 unaccounted for so you guys could help me out here.

Notes

-The PSU is 250w

-I still need RAM

Questions and Concerns

- Which processor will allow me to use the highest frequency RAM?

- Are the current parts going to run fine on my current PSU?

- Will I need to purchase some sort of heatsink or fan with my CPU?
-If so, which processor would not require a fan, if either?

- Assuming I'm playing on a monitor with a native resolution of 1600x900, what sort of performance leaps can I expect opposed to playing in 1080p?

-If playing 1280x720 on a 1368x768 monitor is still an enjoyable experience for me, would playing on 1368x768 or 1280x720 be fine on a 1600x900 monitor?

 

[zolton33]

You will need a better psu for the video card alone. DDR3 ram is relatively inexpensive. And 8 gigs will get you buy with no problems 4 gigs is also sufficient if need be. Most cpu's have their recommended ram listed a good way to check a build is to use http://pcpartpicker.com/ this way you can play with it and adjust your budget accordingly.

 

[TheXpertnoob]

Well there's a reason why there's fifty dollars left unspent. I have a friend who works at a tech shop who can get me ram for free if I really needed to spend it on a PSU

 

[zolton33]

The psu is the heart and sole of a system without it no component will work or work correctly. And when pc's run into problems the psu is usually the prime suspect. Just some thing to keep in mind to make sure you get a decent psu that will power your system and be reliable. I did the same thing recently :

http://pcpartpicker.com/p/q5TI

I chose AMD as it was cheaper and the am3+ board left me room for a better cpu when finances allowed it. That was the path i took. But i also already had an Antec VP450 i had just bought to replace my old psu so i did not have that expense though i had to buy a ide to sata converter to use my old hdd as the new board did not have a ide hook up. Not sure about your hdd but some thing else to keep in mind as well.