Best CPU I can get without upgrading motherboard?

Well right now i have a amd phenom x4 9150e at 1.8ghz.. its pretty slow when i run some games like skyrim and company of heroes and starcraft 2.. so i was wondering what would be the best cpu i could buy without upgrading the mobo??
i was told by a friend that the AMD Phenom II X4 840 would be a good choice. But also i was suggested the AMD A6-3650 Llano 2.6GHz.

what do you think about these choices? and any other suggestions are more than welcome. Id like to stick to newegg or amazon, as they are both very reputable companys with personal experience with.

Are you near a Micro Center?

Oh, im sorry, I forgot to say what motherboard I have. According to cpu-z, its a pegatron narra3.

And no, im not close enough to a micro center for it to be worth it

Honestly, you are wasting $$$ buying old technology for gaming. You are going to be playing constant catch up and spend way more money in the long run. You can get these and play Skyrim with Medium settings (AA turned off) on the iGPU of the i3 cpu and have plenty of options for the future. You can always add a $130 GTX460 in a few months (or whenever your budget allows) and play Skyrim on High settings @50-60 fps. Just a thought. There are plenty of people on here that can help. What is your budget and what do you want out of the completed build? What are you working with now parts-wise?
http://www.amazon.com/Intel-i3-2100...VGMO/ref=sr_1_2?ie=UTF8&qid=1330292215&sr=8-2
http://www.amazon.com/ASUS-P8Z68-V-...f=sr_1_32?s=pc&ie=UTF8&qid=1330292421&sr=1-32

I'm in agreement with Buckshot.

Upgrades are not worth it when after time, upgrades become harder to find and cost more because of the fact. I would only recommend buying old parts when replacing damaged parts not for upgrading.