Tonyla1 Posted November 5, 2009 Share Posted November 5, 2009 Hi folks, Can anyone explian in simple terms the difference between an "Intel Core i7 920 Processor LGA1366 2.66GHz 8MB Cache" and "Intel Core i5 750 2.66GHz/8MB CACHE/LGA1156"? I asked my local supplier for a quote to build a i7 920 machine for fsx and they tell me that there is a shortage of Intel i7 900 series CPU from manufacturer. it might take at least a couple of weeks for suppliers to source from overseas. They suggest instead a similar system using the new i5 750 CPU socket 1156. I'm not sure if they are trying to con me as I would have thought that an i7 system would be superior. I was my intention to overclock the i7 to 4Ghz. I'd appreciate any advice Tony Link to comment Share on other sites More sharing options...
Heiko Glatthorn Posted November 5, 2009 Share Posted November 5, 2009 I think your supplier is telling fairy tales... At least in Europe they drown in i920s, you can even order a special batch. X58 is the superior chip and you can upgrade later on to 32 nm CPUs which are also LGA 1366. i5 is meant to be mainstream - sure good performance and good bang for the buck. But i would choose an i7 anytime (well, i just did). Link to comment Share on other sites More sharing options...
Tonyla1 Posted November 5, 2009 Author Share Posted November 5, 2009 Thanks Mango, just as I suspected Link to comment Share on other sites More sharing options...
Krono Posted November 5, 2009 Share Posted November 5, 2009 Hi Yep definitely go for the i7, the i5 is cheaper but then again there is always a reason for that. Ken Link to comment Share on other sites More sharing options...
tomcat78 Posted November 5, 2009 Share Posted November 5, 2009 From what i can gather; Lower end I5's do not have hyperthreading (if you plan to overclock, this should be disabled anyway) I7 systems seem to be more futureproof (depending on what motherboard you get) I7's have better memory bandwidth (Tri Channel), than the i5 (Dual channel) The i7 is also the way to go if you want to run multiple GPUs (SLI, Clossfire), not much use for FSX but may be desirable for other games. I would personaly go for the i7. Runs very nice at 4GHZ. There is a nice support webpage which runs through how to overclock an i7 to 4GHZ, using a EX58 motherboard. I Hope this helps Link to comment Share on other sites More sharing options...
Tonyla1 Posted November 5, 2009 Author Share Posted November 5, 2009 Thanks guys, Much appreciated Cheers Link to comment Share on other sites More sharing options...
Ian Routley Posted November 5, 2009 Share Posted November 5, 2009 There is an 8xx series i7 available for the new 1156 socket. I have just built a box (not for FSX) on this platform. It is said to overclock OK - but mine won't be. If you really can't get a 920 - that may be an option. Link to comment Share on other sites More sharing options...
Dukester Posted November 5, 2009 Share Posted November 5, 2009 Well I can't see the point of the extra cost of an 1366 based i7 for an FSX machine. Triple channel, SLI & even Hyperthreading isn't going to help FSX much as we know it is GPU cycles that gets it humming. Given many ppl are getting close to 4GHz stable (and more in some cases) with the i5 its seems to be a good alternative for the budget conscious among us. http://www.legionhardware.com/document.php?id=863 These threads may also be worth reading. http://orbxsystems.com/forums/index.php?topic=15221.0 http://orbxsystems.com/forums/index.php?topic=14796.0 http://orbxsystems.com/forums/index.php?topic=15389.0 The new Clarkdale based CPU's (Dual Core i5's) are coming soon: http://orbxsystems.com/forums/index.php?topic=15562.0 Link to comment Share on other sites More sharing options...
Heiko Glatthorn Posted November 6, 2009 Share Posted November 6, 2009 From the legionhardware article : However push it to beyond 3.0GHz and you start to receive Core i7 9xx series performance, and if you go even further the Core i5 750 starts to come into a league of its own. If this is true that you need more than 3 GHz to beat the 2.66 GHz i7, the clock to clock performance difference must be huge... I am pretty sure it can't get even close to a 4 GHz i7. And those 32 nm CPUs might be very interesting - i would like to have the option to try those... Link to comment Share on other sites More sharing options...
Ian Routley Posted November 6, 2009 Share Posted November 6, 2009 There is no doubt that FSX pushes enormous amounts of data around your computer. Staggering really, considering the age of the platform. CPU cycles are definitely necessary ... but I wouldn't discount memory bandwidth. Hyperthreading for FSX is practically completely useless - and I think all i7 users have it off (or at least - they should!) The proof of the pudding (as always) is how it performs ... so we all need some pioneers with a new architecture. Currently my new 1156 build gets intermittent Stop and BSODs unrelated to temperature ... so a BIOS update is on the cards. It is unclocked, and running standard everything ... except that Gigabyte seem to have their CIA feature activated by default. It is now off! I definitely prefer my x85 chipset board. Good luck .... Link to comment Share on other sites More sharing options...
Dukester Posted November 6, 2009 Share Posted November 6, 2009 Yep I agree for the best performance then I don't think you can beat the 1366 i7 platform. But I also believe that for those who can't afford cutting edge equipment then the 1156 based systems may prove a good alternative especially for an FSX only sim rig. I still plan to be a pioneer for an i5 system but am holding off a little longer for those socket issues to get sorted. That and also having to source more funding as a recent purchase of a Plasma HDTV was to good to pass up with the deals around at the moment. Link to comment Share on other sites More sharing options...
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