A few years ago (many years probably) I built 2 PCs for my children with the AMD Athlons because they were cheaper than the Intels. They both run really hot at 75C, reaching ridiculous temperatures, so much so that MSI,
the makers of the motherboards, sent me a modified BIOS guaranteed to let the CPU run hot without switching it down to slow speed. MSI sent me screenshots of their test system running at 95 C in order to prove to me that their modified BIOS works.
In addition to heat, the AMDs are noisy (their fans) and also cannot be overclocked.
I then built another system, with the Intel Q6600 (Quad Core) at 2.4GHz which I happily and easily overclocked to 3.2GHz and it's been running with its fan set to about 30%, whisper quiet, and at about 40C.
Suffice to say I was chaffed with the Q6600 and how fast and quiet it was and vowed never to buy AMD again.
However I am looking at buying abother PC now, and the choice is between i5 750 or Phenom II X4 955, with the Intel being 30 pounds dearer. The motherboard for the Intel is also more expensive than the equivalent for the AMD. In short for the AMD sytsem the price is 238 pounds whereas for the Intel the price is 315 pounds.
According to the charts they are both at very similar performance levels.
Which of the two, if any, would I be able to overclock the easiest without running hot and becoming noisy ?
Will the AMD run hot and almost impossible to overclock?
Depends on what you plan on doing with the system, gaming or other, as for the fan/cooling issues, I would recommend any aftermarket cooler for both(AMD or Intel) as the stock ones just don't cut it especially if you plan to overclock. Keep in mind that if you are on a budget and plan to overclock, AMD may be the better choice since the Phenom II X4 955 BE has an unlocked multiplier and can easily be overclocked. The Intel is one Tier above the AMD ( http://www.tomshardware.com/reviews/best-gaming-cpu,254... ) But like you said, it cost more. Ultimately it is up to you and how you plan on using your, if you are geared towards CPU intensive programs or more gaming, then saving your money with the AMD, and putting that towards a better video card or something...
I am in the process of building a new system and considered the very same question. After looking at about 1500 reviews of both, comparisons, bench marks and the like.
I went with my gut and ordered the i5.
I can't point to any one thing that said i5 is the best fit for me, more or less a culmination of everything I read, lead me to that conclusion.
After a lot of additoinal reading I settled with an i5 750 an an ASUS P7P55D-E Pro LGA 1156. This may be more than what you are budgeting for, but for longevity it had the right fit for me. USB 3.0 support along with 6GB SATA.