So I've narrowed down my build to two CPU's and need your input on overclocking.
Originally my thoughts were to go with the x4 because its quad core and only $99 right now. However I read that the 4th core can be unlocked on the X3's, if I go X3 its only $75. Is it worth the extra $25, or can I essentially overclock it just as much as the X4?
Unlocking the 4th core is an option but it's not always stable. I personally picked the 620 for that reason.
Here is a set of timings that will do you well based on your given Mobo, Memory and the 620.
FSB=250Mhz | 25% OC
CPU=13x250=3,250Mhz | Stock Voltage
NB and SB=8x250=2,000Mhz, 9x250Mhz=2,250Mhz | 8x gives Stock but 9x is doable on Stock Voltage
Memory=4x250Mhz=1,000Mhz, 3.33x250Mhz=832.5Mhz | If you can get your PC6400 to run at 1Ghz stable then cool but I'd drop the Multiplier to 3.33x and go with a more reasonable 832.5Mhz OC
That's not bad, but go with a newer motherboard and faster DDR3 memory. The price deference isn't much and the performance gains are more then worth it.
Here's a System alternative using a GIGABYTE Mobo and DDR3. | GIGABYTE boards are easy to OC and well equipped
I appreciate your input. Do you think 2gb will be sufficient for Windows 7?
Windows 7 is perfectly functional on 2GB of memory. I've ran Windows 7 RC-1(Beta) on a Single core Socket939 FX53 CPU and 2GB DDR1 PC3200(That's gear from 2005-2006) with nary a hitch.
Technically an x86 (32bit) OS can't even use 4GB of Memory. The technical limit is about 3.4GB, but that's just a silly number . By getting 4GB in just 2 sticks, you max out the OS without maxing out the motherboard. If you upgrade to x64 with only 2 sticks in your system, you've got room for 2 more.
2GB will work perfectly, but just like the 3 core vs 4 core CPU the price differonce is only $24 for twice the Memory.