The 7750 BE is basically a Phenom die that they disabled parts on to cover a market of cheaper chips. So no its not a true dual core its really a quad core with two disabled and with ACC enabled it will unlock the disabled cores. If you download CPU-Z from www.cpuid.com it will show as a Phenom(tm) FX-7750.
While I've read quite a bit on the quad-core theories, all settings I've tried result in 1 physcial processor with 2 logical cores - where as IF the CPU *had* 3 or 4 cores it would show it as such - even if 1 or more were "bad".
Which, is why I'm think'n the Kuma *might* be only a true dual-core CPU... IE, NOT an Agena CPU (Phenom). I haven't (yet) found details / specs to show any Kuma CPU's are actually 4-core.
the Kuma 7750 is a crippled Agena, so no its not a true dual core (just like Saaiello pointed out). Some have been able to unlock the cores(takes a miracle), the unlocking rate on the Kumas is around 4-5% as opposed to an x2 555 which is around 80%. I have 2 of them, both are crap CPU's unless you are going to use them for websurfing/HD viewing/old games etc..
Kinda misleading (borderlining false-advertisement in a way) to name the same CPU something different; If you bought a Ford with a 351 Windsor, you know it's not the same physical block as a 351 Cleveland... Or for anyone less familiar with Ford's debacle - It's like getting a Dodge called a "Hemi", while not having a Hemi-engine in it... Ford had different castings.
I was able to unlock this core mine is a Athlon II X2 7850 BE i unlocked it once it was tooo hot on stock cooler (set bios to default) so i upgraded coolers and now i cant unlock it and its quite annoying how do i unlock again?