Hi, I am planning on buying a new computer. Can any one explain the difference between: Intel PD 2.8 GHz (820) Dual-Core And Intel P4 3.4 GHz What I want to know is that which one is faster? Also, does Dual-Core mean: 1.4 X 2 = 2.8 GHz or Dual 2.8 (2.8 X 2 = 5.6) Also I was told that Intel P4 3.4 GHz is “Dual-Core capable” Is this true? I think “PD 2.8 GHz (820) Dual-Core” is newer than Intel P4 3.4 GHz But at the store they want more for identical systems with the P4 3.4 GHz! Which one is Hyper-threaded? Are they 32 bit or 64 bit? For identical systems which one do you recommend and why? Any other info would greatly appreciated. thank you in advance

"Can any one explain the difference between: Intel PD 2.8 GHz (820) Dual-Core And Intel P4 3.4 GHz" -Theoratically the only difference is that the P4 has a Prescott core and the Pentium D has a Smithflied dualcore. "What I want to know is that which one is faster?" -Depends on what you do with the system. As for Office applications, it's not the slowest, but also not the fastes. The Pentium D performs really bad for gaming according to X-bit labs. As for working with digital content and multitasking, it's probably faster than the P4. "Also, does Dual-Core mean:1.4 X 2 = 2.8 GHz" -That I can't answer for you since I'm not sure "Also I was told that Intel P4 3.4 GHz is “Dual-Core capable” Is this true?" -I''m not sure what you mean by that. The P4 just has 1 core. "Which one is Hyper-threaded?" -P4 "Are they 32 bit or 64 bit?" -If the 3.4Ghz you're talking about is the Pentium 4 650, than the answer is 'both' If not, then just the Pentium D "For identical systems which one do you recommend and why?" -Again, depends on the main purpose of the system Intel P4 3.2E Ghz@ 3.8Ghz Asus P4P800-E Deluxe Kingston 2GB PC3200 Asus AX800 Pro w/ZM80D-HP WD Raptor 37 GB Maxtor DiamondMax 10 300 GB Asus E616P1 Plextor PX-740A Reserator 1

thank u Lizette, for your quick reply I want to use it for capturing video from VHS and editing, then burning to DVD. Also for mild game playing. I believe this Intel P4 3.4 GHz is Pentium 4 650. Could u please tell me a little about Hyper-thread and its benefits? Is there big difference between “Pentium 4, 3.4 GHz Hyper-threaded” and “PD 2.8 GHz (820) Dual-Core” other than the speed? --- "Also I was told that Intel P4 3.4 GHz is “Dual-Core capable” Is this true?" ”-I’m not sure what you mean by that. The P4 just has 1 core.” Well I have and ad from a well know and respected store in my small town that reads: “Intel Pentium 4/3.2 GHz Dual-Core Processor (2 X 1 MB Cache)”! But on Intel’s web site it’s either Pentium 4 or Pentium D, never mixed. So I asked the sales man and he said P4 is “Dual-Core capable”! :-! True? or False? :-( :-\ --- Many thanks

"Could u please tell me a little about Hyper-thread and its benefits?" -Honestly, I've never really noticed a difference between a CPU with Hypertreading and without. Check Intel.com for the features of Hyperthreading. I do know that the Pentium 4 650 has a feature called Enhanced Intel® SpeedStep® Technology. That is something I'm more interested in, because it is very similair to AMD's Cool 'n Quiet and that works so good. I've build an AMD Athlon64 with this feature and the system's temp is as low as 15-19 degrees Celcius (!) There's one thing though, the 820 doesn't come with this feature, only the rest of the 6xx and 8xx serie. "So I asked the sales man and he said P4 is “Dual-Core capable”! :-! True? or False?" -I think it's safe to say that that sales man is false. Check: http://www.intel.com/support/processors/pentium4/sb/CS-001622.htm Or he might be meaning something totally different and we're just not understanding what. "I want to use it for capturing video from VHS and editing, then burning to DVD. Also for mild game playing." -I suggest that you google for some reviews and check the outcomes on tests that involve your main tasks. I, personally believe that the dual core will be the best option as soon as there are applications that use the advantage of dual cores. At the moment there aren't many and if you're in a rush buying a new system, I suggest that you should keep an eye on the Pentium 4 650. Good luck and let me know what you decide ~Liz Intel P4 3.2E Ghz@ 3.8Ghz Asus P4P800-E Deluxe Kingston 2GB PC3200 Asus AX800 Pro w/ZM80D-HP WD Raptor 37 GB Maxtor DiamondMax 10 300 GB Asus E616P1 Plextor PX-740A Reserator 1

Intel calls everything a Pentium anymore. Both these are 32 bit CPU's. Both have HT, so the "D" can run four threads at the same time. Itanium is 64 bit. See what Linus Torvalds has to say about Itanium: http://www.realworldtech.com/forums/index.cfm?action=detail&PostNum=3941&Thread=68&entryID=60298&roomID=11 Best

"Intel calls everything a Pentium anymore. Both these are 32 bit CPU's. Both have HT, so the "D" can run four threads at the same time." -Are you talking about the same CPU's? (The P4 3.4Ghz 650 and the PD 2.8Ghz 820) Both are 64-bit CPU's and only the P4 supports HT. See for yourself: http://www.intel.com/products/processor_number/proc_info_table062705.pdf Intel P4 3.2E Ghz@ 3.8Ghz Asus P4P800-E Deluxe Kingston 2GB PC3200 Asus AX800 Pro w/ZM80D-HP WD Raptor 37 GB Maxtor DiamondMax 10 300 GB Asus E616P1 Plextor PX-740A Reserator 1