Which is better, HT Technology or Dual Core Technology?

Opteron is Right :) though personally i am also an AMD FAN,but here we are talking about only INTEL i-e INtel Hyperthreading or Dual core.Then off course Dual core is best ,Its probably the first time a work done by INTEL which is acceptable by every one,even companies like AMD itself. p4 with HT wasn't like it was described.Even sometimes i saw problems in few applications which was corrected only by disabling HT Feature from Bios,Probably this was the reason that Intel Gave the option of disabling the HT feature in Bios ;)

may be Dual Core Technology

don't know! I think dual core

Do you mean HyperTransport with HT or HyperThreading? Because HT means HyperTransport, the very fast bus used by AMD motherboards (1000MHz). HT is HyperThreading too. It's a technology used in the old line of processors made by Intel. Intel with hyperthreading simulate 2 processors, so P4 can be fully used. P4 has the old Netburst architecture, that lead to a have idle pipelines. With Hyperthreading Intel covered that type of thing so P4 could run faster and always keeping their pipelines "at work". I remember you that P4 have longer pipelines than AMD Athlon architectures. Intel abandoned Netburst architecture (P4 long pipelines) in favour of new Core architecture. So new Core processors (and of course new intel's Dual Core) have shorter pipelines, they are slower talking of frequency (MHz), but they have a more efficient architecture, so they are really faster than older P4 with netburst. I'm a fan of AMD as can you see, but I appreciate what Intel did with new Core Duo processors. They are really fast!

very nice question, in terms of speed its Hyper Threading which wins the battle, but when its comes to performance its Dual core simply bcos you have 2 cores which is just like 2 processors embedded in one, there are 2 cache blocks, double registers. HT is a 64 bit technology and in future u will get 64 bit OS only so its future technolgy, In future u might get HT with Dual Core.