AliceCooper
[H]ard|Gawd
- Joined
- Mar 25, 2007
- Messages
- 1,478
Sandy Bridge processors are back on newegg!
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115072
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And K models are missing VT-d.
Hi,
Unfortunately, I am not really sure how VT-d and trusted Execution affects the CPU.
Do you have any links that could explain this in more detail?
I am currently looking at the 2600, but other than overclocking, I see no real benefit to the 2600K. Is there something I am missing?
Thanks
Any word on motherboard (re)release dates?
Hehe...Guess I deserved that.
For me this seems to be more useful when running VMs. Correct me if I'm wrong, but it appears the 2600K is aimed at gaming, while with the 2600 is aimed at your other users.
If I could ask another question, I will occasionally be running backtests on stock portfolios. Due to the logic and the step-by-step nature of these tests, they generally run on a single thread. Thus, if I buy the 2600K and overclock it for this occasional use, is there something I am missing out on?
No, you've got it right. Sandy Bridge is a fantastic processor for those annoying single-threaded apps, because the 2600K will (stock) turbo to 3.8 GHz when running a single thread (+ 5 multiplier). If you change the base multiplier (overclock), turbo mode will still boost the processor +5 multiplier when running your backtest.
Thus, a small overclock to say 4 GHz (base clock) will give your backtests 4.5 GHz performance.
Hi,
Unfortunately, I am not really sure how VT-d and trusted Execution affects the CPU.
Do you have any links that could explain this in more detail?
I am currently looking at the 2600, but other than overclocking, I see no real benefit to the 2600K. Is there something I am missing?
Thanks
No, you've got it right. Sandy Bridge is a fantastic processor for those annoying single-threaded apps, because the 2600K will (stock) turbo to 3.8 GHz when running a single thread (+ 5 multiplier). If you change the base multiplier (overclock), turbo mode will still boost the processor +5 multiplier when running your backtest.
Thus, a small overclock to say 4 GHz (base clock) will give your backtests 4.5 GHz performance.
now we just need motherboards to go with the processors.
VT-d is of major import to the application-virtualization/VM crowd if they have applications that require major I/O needs (biggest users - virtual servers, such as XENWORKS). Normally, this is of little concern to the desktop crowd unless they are developers.
TXT, however, is an *old* technology - it goes all the way back to the early days of the Core microarchitecture, and acts as the antithesis to XD (eXecute Disable). Normally, the two are found together, especially on LGA775 CPUs down to even certain Celerons (my Celeron DC E1200 supports both XD and TXT, though it lacks support for VT-x), and it stands for Trusted eXecution Technology (and goes hand-in-hand with the Trusted Platform Module, which started to appear in that same timeframe, and was associated, albeit erroneously, with the first Intel Macs).
Are you a developer that does server-application development? If so, you want VT-d support in your CPU (and therefore, if you can't afford a XEON, you want the i7-2600 without the K); however, you will forfeit a lot of the overclocking that the K models can achieve.
Otherwise you want the i7-2600K (though it lacks VT-d, it still supports VT-x; also, it retains the XD support and is more overclockable than its non-K brother thanks to the unlocked multiplier).
Wonder of boards will receive any new tweaks other than new sata!