Looking at Intel's New-ish Desktop Socket, LGA 1366 100
Slatterz writes "LGA 1366 is Intel's first new desktop socket in four years. It uses the same ZIF design as the familiar LGA 775 architecture, but it incorporates many more contacts. These big architectural changes are backed up by some less visible advances. Until now, Intel's quad-core processors have been constructed from two dual-core dies, but now Core i7 brings together four cores on a single die. It's also Intel's first processor design to use an L3 cache, shared between all four cores."
Not the new desktop socket (Score:5, Informative)
LGA 1366 is intended for servers, workstations, and high-end gaming PCs. LGA 1156 will be the mainstream
desktop socket.
What's the difference? IIRC, LGA 1366 has a tripe-channel memory controller and support for dual CPUs (via another QuickPath link). LGA 1156 has dual-channel memory support with support for only one CPU.
The desktop CPU for LGA 1156 will be called Core i5.
Re:Not the new desktop socket (Score:2, Informative)
Re:Not the new desktop socket (Score:2, Informative)
the Nehalem architecture is not bandwidth constrained at all
Don't be silly. Total bandwidth to all 4 cores of an i7 920 on triple-channel DDR3/10333 is only 20GB/s. That's about 1.8 bytes per core per cycle. Given the existence of SSE instructions reading 16 bytes per cycle you're about 90% short of unconstrained bandwidth.
Even with the best DDR3 money can buy you're still 80% short.
I think you meant to say the Nehalem architecture is not bottlenecked at all.
Re:It *is* absurd (Score:5, Informative)
You're an idiot. Please don't post here anymore.
Either you or your computer can set that power button to ACPI only, at which point holding it down for five seconds doesn't do anything except make the button temporarily shorter.
You are an asshole. Please log in so you can be modded down.
Re:It *is* absurd (Score:2, Informative)
But I think you missed the point. You said the soft power pushbutton goes through the OS. However, when the machine is shut down there is no OS loaded. When you first plug it in, there is no possibility of any part of the OS still being resident in memory, yet the power button still turns it on.
No, you are wrong. The button doesn't go through the OS. It goes through the BIOS. The BIOS will then send ACPI messages to the loaded OS and allow the OS to handle the response to the power button. However, when you hold it down for 4 seconds, that is not treated as an ACPI event. That gets handled internally by the BIOS. The BIOS just then cuts the power without giving the OS the opportunity to do anything.
Every computer I've ever used since the soft power button came into use has behaved this way. Even if the computer has completely locked up, holding the power button for 4 seconds shuts it off. I'm nearly 100% certain that the specification says it should work this way. If you have a computer that doesn't do this, I'd claim your motherboard is defective (either in manufacture or in design). Either that or user error.