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Hyper-threading On or Off ?

I have it on in my 860 but whether it does anything , who knows but it is good to see 8 cpus chomping along :)
 
re:

Hello Wucked :eek: been a long while! hope all is ok your end!
Are you coming back for a taster of BF3 I ask ;)
Cheers
|2es-mrix
 
Overclock and temps seem fine at 4.2 lol

How much further is it likely to go without HT?

As said above, HT isn't really that worth it for gaming, and that's all I use mine for.
 
I turn mine off till I need to do some rendering and then turn it back on for that session. Its no effort really to turn it on or off so may as well leave it off when it's not needed.
 
I've turned mine back on after that Dice tweet :o when the beta hits I'll test it out, if there is no noticeable difference between HT being on or off in BF3 then I'll disable it again.
 
chigley said:
http://twitter.com/#!/Demize99/status/111942149922230272
Click to expand...
So, what's the difference between multicore-threading and hyper-threading for amd or intel cpu's in pc gaming? and how exactly does one think that will impact on bf3 or any game?. I mean i have seen it written on the back of PC game boxes where it states "enhanced for multicore". I suppose for bf3 more cpu cores/threads makes it easier to spread the work load?, so less taxing and less glitching? and bf3's in game sound engine is running off one of those cpu's?. maybe it will enhance the I in the A.I? :D j/k of course.
 
Coding for HyperThreading is presumably more specific than simply coding for multi-core systems. You need to have two (or more) threads that use different parts of the CPU running at the same time to really take advantage of HT.

One of my numerical calculation programs can make great use of HT - running 8 simultaneously is 50% faster than running 4 simultanously on my i7-920, which is impressive considering even x264 is only ~30% faster with HT.
 
I may well be wrong here, as I quite often am.. But my interpretation of HT is that from a programmer's point of view, a hyper-threaded processor is basically the same as a multiprocessor. Not as fast as genuine multi-core, but still faster than running a multi threaded application on a uni-core processor.

So for example if BF3 spawns 4 threads, it will run faster on a dual core cpu with HT enabled than it would on the same cpu with HT disabled. But still not as fast as a genuine 4 core cpu. So the question would then be of how many threads BF3 spawns? 8 threads maybe? In that case then yes, even on a four core cpu it may be advantageous to enable HT... But if BF3 only spawns 4 or 6 threads, then they pay-off might not be so great.

And my interpretation of that tweet is merely of a dev confirming that BF3 will be multi threaded, and that on minimum spec cpu's (dual cores) it will take advantage of the extra two logical cores. But if you give it 8 logical cores, will it saturate all of them? I don't know, but I do know that BFBC2 is multi-threaded, and that it does not saturate 8 logical cores, whether real or HT.
 
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