Certain games utilize the CPU more than others. Resident Evil 5 for example is one which utilizes the new Core i7 Procs well. And my understanding is that games like Starcraft 2 with lots of individual units also untilize the i7 more than usual.....

Yeah well I understand that, so am I correct with the 1.7ghz part? (When utilizing all 4 cores, the clock will be only at 1.7ghz)
Now I understand why the XM is so goddamned expensive

1.7Ghz sounds slow, if the application or game like julchin mention can utilise all thread, it will be come advantages compare to other proccessor which have 4 thread or 4 cores with 4 thread^^

Hmm okay let say StarCraft 2 then?

star craft 2 is not utilising hyperthreading. so u wont gain any performance. core i7 720/740 QM will run SC2 at 2.4ghz(2Cores utilize)

how do you know the 740/720QM will run at 2.4ghz?
I mean..well not to say I doubt you but how do you know that they are running it with 2 cores at 2.4ghz?

I would think its either that it runs on stock or a bit higher. Resident Evil 5 runs hyperthreading though...

Exactly. I think we have been talking about this before in AW Thread 3 done by findingScreemo. I remember just receiving my unit and Putochip as well as Mr. Docter were the ones clarifying all these. The problem is utilisation of hyperthreading by the games. Besides RE5, I'm not sure what other games do this.

This is interesting info. Non Utilisation of HT but the core speed is higher than stock..

I would like to know about this as well.

try mafia II on my m11x with these setting shown in my blog..

Mafia II

manage to get 26 to 30fps with physx, ambient occlusion set to on ,geometric detail to medium, shadow quality medium

very playable...have not compare with mafia ii on my ps3 yet

Because Turbo Boost is not only limited to overclocking one core, but it can be done to 2 cores as well....

For example?
Any formula/calculation shows how exactly turbo boost work to distribute the multiplier accordingly?

For i7 720QM, its 1/1/6/9 with base multiplier 12x means it will have multiplier 12x for 4 and 3 cores, 18x for 2 cores and 21x for 1 cores...
since SC2 only use 2 cores, it will run 18x 133MHz = 2.4GHz...

as for i7 840QM, its 2/2/8/10 with base 14x and i7 940XM, its 2/2/8/9 with base 16x....

Hmm thats very informative but forgive my stupidness, what does 1/1/6/9 means?

thx lee, im also lee as well. haha. exactly what lee had clarify about the clock.
besides RE5, Batman Arkhrum also HT support game.
but in some games, while it support 2 Cores, u have HT, HT might decrease the performance, like crysis, HT and not HT have different, i think is around 10% like this

The extra multiplier for 4cores/3cores/2cores/1cores
In i7 720QM 2 cores case, base is 12 + 6 = 18 x 133MHz = 2.4GHz...

Oooh. Okay okay, thanks man.
That helped alot

(Regret for getting 740QM now )

Lol I reckon that we can't turn HT off in M15x?

This post has been edited by awyongcarl: Aug 31 2010, 11:02 PM

regret? then what proc u should get?

Hmm 840QM I suppose. XM are just out of my budget lol. (Even if I were to get, I wouldn't get from Dell, I could find one from ebay for rm1.7k >.>)

well, 740QM is good enough d, dont regret, Proc wont give a boom of FPS increment

Really? I mean..lol 2.5ghz vs 2.9ghz, 400mhz oughta makes some difference.
Heh guess If i wanted to increase something, it'd be the graphic card.

if i were u, i rather get a desktop for the money of ur upgrade.