ok I need help for the 650ti I currently have geforce 430gt.
I need help I have a 420W psu its 12 volt rail its amp rating is @13amps I Have
amd athlon 64 x2 3800+ @ 2.5GHz
2gb of DDR2 ram 836 MHz
1 HDrive 300GB Sata 5400RPM
1 DVD drive
I do Not have a 6Pin Connector do I have room for 2molex to 6pin connector?
All Voltages for HardWare are Stock. stable overclock without voltage increase......
Please Do not tell me to get another computer "if I had money I would lol"
The Radeon 7770 & GTX 650 Ti are both good choices. The problem that I see is the extra power draw and the fact that both cards will be bottle necked by your current setup, but you can upgrade those later. Since we're trying to upgrade on the cheap, I'm going to recommend the cheapest cards in each category. They're not bad, they just don't have all the bells and whistles.
My personal favorite for lesser systems with sketchy PSU's is the PowerColor 7750 $90 shipped no rebates and doesn't use an external power connector. PowerColor 7770 Ghz Ed $127 shipped $117 after MIR and is a very solid performer EVGA GTX 650 Ti $157 shipped no rebates but for this price it's not worth it.
The 7770 is not faster than the GTX 650 Ti, but it's performance per dollar is much better.
Here are the broken benchmarks from Anandtech showing that the GTX 650 Ti wins in almost every Bench.
I will see if that is what I can do ill stick with 7750 if I Need new psu
We're all telling you that you need a new PSU before you start upgrading. What you have now "should" be able to handle a 7750, but I would strongly advise against it. It definitely won't handle a 7770 or a 650 Ti. If you have the budget for a 650 Ti, like you were talking about in your original post, then get the PSU & 7770.
You'll be much happier and you'll be able to start upgrading the rest of your system piece by piece if need be and you'll have the power to back it up.
Good choice except that Thermaltake PSU's aren't "better". You're getting more wattage, on paper, but you're not getting a quality built unit.
Read this review from Hardware Secrets and you'll see that in its price range, the Antec VP-450 is one of the best PSU's available. It doesn't have the 80 Plus certifications because it doesn't have the PFC circuit but it does run at 80%+ efficiency and is built with quality components.
Ok just so I can get this together i'll upgrade my psu but if I was to want to update all my stuff motherboard,cpu in future what would be a good psu for that and radeon hd 7770? I am going to eventually get a quad core, and decent motherboard.
No no, questions are good, that's what we want to hear. Questions mean you're willing to learn, to further your knowledge. I have one question for you. What is your budget? How much cash, right now, can you devote to a PSU and Video Card including taxes & shipping?
Then your best bet is the PowerColor 7770 ($127 / $117) and the Antec VP-450 ($43) for $170 shipped and $160 after rebates. The 7770 will OC nicely giving you a nice bump over stock performance and the Antec PSU is good for a single GPU setup.