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On Sat, Apr 13, 2013 at 07:03:26AM +0200, Tamer Higazi wrote: |
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> Hi people! |
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> My old core2duo machine says slowly goodbye and I am at this lever after |
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> 7 years for buying myself a new developer machine, that should serve me |
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> well for a long time again. With intel I never had problems, all their |
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> systems were REALLY stable, and they were really worth their money up to |
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> the last cent. |
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Same situation here -- Core2 Duo T7200 (2 GHz max, but throttled due to |
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worn-down heatpipe). I'll be buying a new system, too, soon. |
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As to the other issues of the thread: |
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all intel Cores have VT-x (including Core2, by the way), which is basic |
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virtualisation support. What only a select few have is VT-d, which is I/O |
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virtualisation. As for the confusion about model range and hyperthreading, |
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Wikipedia has a very nice comparison chart of all available models: |
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http://en.wikipedia.org/wiki/Ivy_Bridge_(microarchitecture)#Desktop_processors |
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Basically: |
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i3 = dual-core with HT (2 physical/4 logical cores), no turbo mode |
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i5 = quad-core without HT (4/4, except one low-TDP model, which is 2/4) |
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i7 = quad-core with HT (4/8) |
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I don't know the technical details very well, but because my Netbook has a |
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single-core CPU with HT, I read up on it a bit. As I understand it, HT allows |
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two threads to use the same core simultaneously, if they don't use the same |
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instruction circuitry. Hence a hyper-threaded single-core is not as fast as |
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a proper dual-core, because sometimes one thread still has to wait. |
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> There are 3 choices: |
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> |
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> Intel Xeon E5-2650 |
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> Core i7 3979 extreme edition |
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> AMD FX.8350 CPU |
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Everything Intel with Extreme in the name is, in my opinion, overpriced for |
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its bang. If you really need as much bang as possible and afford it (like when |
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you earn your money with that bang), then why not. |
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But if you say your Core2 served you well, then you could go a more pragmatic |
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approach of "3 times more power than before is enough for me" and save a few |
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100 bucks, or maybe invest in a bigger SSD instead. |
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I'm currently holding out on my Core2 though, because Haswell is on the |
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doorstep, and I first wanna see what the market has to offer. The CPU part |
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might not gain much in performance, but the graphics part got a big boost and |
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all models support VT-d now (according to cpu-world.com). Plus theoretically |
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I'm a bit more future-proof due to the new socket (which is probably the most |
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annoying thing about the Intel world, compared to AMD). |
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-- |
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Gruß | Greetings | Qapla’ |
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Please do not share anything from, with or about me with any Facebook service. |
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Nowadays you must motivate your people, yelling alone doesn’t help anymore. |
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