I bought a similar computer last year (Pentium D with 2GB ram) which the only intensive thing I do is video editing.
I use Core2Duos with a lot of RAM, good graphics card, etc at Uni and it's not a lot different. I think it depends on how much time you want to spend rendering and if you use Adobe After Effects etc.
I mean get the best that you can, but I find requirements for video editing aren't as big as people make out to be. Although if you're planning to re edit the matrix and do motion capture, it probably wouldn't load all week
It's all a matter of what you're doing. I think the most noticeable difference between CPUs is re-encoding, a lot of other things take so little time it's not a problem or so much time you don't tend to think about it you just leave it going for days. But if you take in an MPEG2 Transport stream at 1080i and re-encode it to a h264 file at 720p at 2 pass with b-frames and the like, that's going to take any time from 2 hours (high end Core 2 Quad) to about 8-9 hours (low end Pentium D).
I own a 3800+ X2, most work I do is gaming or programming mathematical engines. I know Core 2 Duo would get me a better performance (like 30 - 40%), but yeah, to me it doesn't feel like it's worth buying a whole new PC just to get that performance advantage, well worth waiting till I get a decent quad core or whatever. But if I was to buy a new computer now I certainly wouldn't get a 3800+, even if I was on a budget, you can get a lot better for a still fairly cheap price (seen a 4800 at £80!).
yeah, I'm planning on editing videos coz my GF is a student of a broadcasting school and she ask me to help her alot on editing.
while to get an AMD I still don't know, I usually use intel and still need something to made me move to AMD
I can't comment on U.S prices, but here in the U.K:
Pentium D 945 = £103 (
http://www.ebuyer.com/UK/product/114194)
MSI G965M (okish Motherboard, few of things I don't like on it but 1 of the better ones for the price range) = £68 (
http://www.ebuyer.com/UK/product/121045)
Total: £171
MSI K9N4 (Specs on this look really good, much better than the one above) = £52
http://www.ebuyer.com/UK/product/122758AMD Athlon 64 X2 5600+ = £109 (
http://www.ebuyer.com/UK/product/124915)
Total: £161
Now lets compare their encoding times (they had the right AMD CPU but not quite the right Intel CPU so I selected a slightly more power Intel CPU, i.e the Pentium 950):
http://www23.tomshardware.com/cpu.html?modelx=33&model1=437&model2=696&chart=177This is a movie encode, the first 5 minuites of terminator 2 SE, DVD to DivX:
Pentium takes: 8 mins 20 secs
Athlon takes: 6 mins 45 sec
AMD advantage: 23.5%
http://www23.tomshardware.com/cpu.html?modelx=33&model1=437&model2=696&chart=178Lame MP3 encoding, first 53 mins, same film:
Pentium takes: 4 mins 10 secs
AMD takes: 3 mins 9 secs
AMD Advantage: 32.2%
Finally, if you wanted to do gaming, F.E.A.R in maximum quality,
Frames Per Second on Pentium: 46
Frames Per Second on AMD: 62
If those numbers aren't enough to convince you, cheaper price, much nicer motherboard and across the board tangible improvements in performance, not to mention that the AMD CPUs tend to run at much cooler temperatures than the old Pentium netburst architecture meaning you could stick a quiter fan in there. Then I don't know what will convince you haha.
P.S The price / performance index of tomshardware uses quite outdated pricing structure and of course doesn't take in to account AMD motherboards tend to be better at cheaper prices.
P.P.S If you still
really want to go with Intel, have you considered an E6300? In this country it's at about £107, a shade more than Pentium D 945, it performs probably a tiny little worse than the 5600+, but I'd say about 5%, with the very occasional better benchmark.