post #21 of 21
Quote:
Originally Posted by Allsolid478 View Post

In my experience virtual cores are good enough for gaming you just need real cores with rendering if you ask me. Intel said on their site that the biggest advantage of ht is in gaming
Intel said that for the those understanding the technology very well. It doesn't apply generally.

What they meant there is that since 1) Gaming is quite deficient in running multiple cores to the fullest (it's very hard to sync with the main thread without inflicing massive latencies hence games are generally single-threaded with a few helper threads (at best) in most cases) and 2) Hyperthreading mainly helps when the load on the individual cores is not yet 100% but there is also a lot of switching occuring (the main reason HT gives a good boost is during switching and general intercommunication between the cores), then gaming with its low CPU usage on a per-core basis, will see a boost from HT.

The problem is that this does not work in practice on 4 cores or above (apart from a minor boost) because simply live simulations such as games are so bad at using multiple cores (for the reason I posted on "1)" above) that even 3 cores are probably the same performance with 999 cores or 99999 cores on hyperthreading nowadays.

People are imagining that 8core consoles will change all that but it's genuinely not the lack of hardware that makes it hard, it's really technologically and mathematically inherently hard to sync with the main thread of a simulation such as a game without inflicting massive latencies and rendering the whole effort worthless.

tl;dr: They mainly meant i3(and mobile i5) 2core/4 virtual core hyperthreading there. 4 real cores and above are rarely needed on most games.
Edited by fateswarm - 7/6/13 at 4:00am
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4790K 4.6G 1.24v/1.74v, 5.1G 1.35v validation. GA-Z97X-Gaming 7 Tri-X R9 290 1100/1350 +0.012v G.Skill 2400 c10 
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