hey everyone, just wondering how wise it is to overclock a 720be after you have unlocked the 4th core? when it was a tri core i had it at 3.8 with the voltage slightly upped, how wise is it to up the voltage though after unlocking the 4th core? i got it stable at 3.4 at the minute very happy, especially as gigabyte have just sent me a GA-MA790GP-UD4H in replacement of my ga-ma790fx-dq6 very happy, its a great board!
so yeah, if is it safe to up the voltage on this puppy? i got no way of checking the temps, but i can tell you that idle it is 40 degrees, thats checked in bios, i have zalman 9700 aftermarket cooling,
720 be unlocked to 4 cores overclocked to 3.4 stable
xfx hd4890 overclocked to 915 on the core clock and 1200 on the memory
grr!!!, well ive been running 3d mark all day, and been playing crysis for around 3-4 hours, i presume this is enough to ensure stability? im not really fussed about upping it any further really, one thing i am trying to work out though, whats better? 4 cores at 3.4 gig? or 3 at 3.8? i know obviously 4 at 3.4 has more processing power, but 3 at 3.8 i get higher scores on 3d mark etc... confused
why isnt the rest of my signature showing?...... i have more written in it, but it stops there, guessing there is a limit to how many characters you can have? any way i can get more? how did you make that text box with ur system specs dude?
thanks man, that helps alot, i been thinking and i may set my clocks back down a bit i think, cuz the only reason i really messed with this stuff in the first place was cuz of 3dmark, and now its become an adiction, i think i will stick with 3 cores at 3.4 so i got loads of stability and low temps, i been getting some artifacting every now and again aswell, so may lower gcard clock a bit 2
1. 4 cores at 3.4 GHz is better than 3 cores at 3.8 GHz for running most applications and multi-threaded applications. Games aren't quite there yet. 4 x 3.4 = 13.6 GHz, 3 x 3.8 = 11.4 GHz.
You CAN'T add the speeds of each core.
I'm only adding speeds of each core to postulate the amount of processing capability. There's no reason I CAN'T. For example, if you have a Dual Core overclocked to 4.2 GHz and they're running at 100% utilization, and you have a Triple Core overclocked to 3.6 GHz and two cores are running at 100% utilization and a third is running at 67% utilization, you're better off with the Triple Core because you still have a core that has 33% utilization left for extra processing.