Quick help on deciding cpu

hey guys i need some quick help deciding cpu, i know there's a similar thread before this but i need to post this cos im kinda desperate, i need to buy soon and need as much opinion as possible

my comp is mainly used for gaming, especially cpu intensive games like total war and arma2

the two best cpu that my mobo support is Phenom II X4 945 95w and
Athlon II X4 640

i was wondering which one is the better choice, the 945 usually cost about $150 and the 640 usually cost about $100, however some comparison charts shows that the 945 is only a few fps (1-5) better than the 640 when gaming, so is it wise to spend the extra $50 to get the 945???

some article suggest that the 945 is better since its a phenom brand and has a L3 cache, however im not really sure what it means and i need as much opinion as possible before i buy, preferably this weekend.

so please leave suggestions on which one to choose, i don't plan on overclocking the cpu so which one is the best bang for the buck???
6 answers Last reply
More about quick deciding
  1. http://www.wisegeek.com/what-is-l3-cache.htm

    The best bang per buck between these two CPU's would be the Athlon X4 640.
    But again the Phenom II X4 945 is a slightly more powerful CPU (the L3 cache helps).

    Perhaps you should specify you motherboard make and model to us.

    Is it a AM3 based board or AM2 ?
    Is the maximum TDP 95 watts?
    There is a AM2+ 125 watts TDP 3.0 Ghz OEM Phenom II X4 940 BE at newegg at about the $96 price range.It is essentially the same as the AM3 Phenom II X4 945 except that it will only work in AM2+ boards,lacks the DDR3 memory controller of the 945,has a higher TDP but is a Black Edition CPU (unlocked multiplier).
  2. Sounds like an AM2 motherboard to me if he can only support 95W CPUs. Get the Athlon II (even an X3 would be fine) and put the $50 towards an AM2+ motherboard so that you can eventually upgrade to the Phenom II X6.

    Here's a little beauty that $50 would go a long way to purchasing:
  3. Please give your full system specs.. Depending on your components, the extra 50$ can be spent elsewhere as both your selected CPU's are pretty much on par in terms of gaming..
  4. this is my current mobo
    and this is the supported cpu

    its an AM2 mobo and can only handle up to 100w, so 940 and 920 etc. are not supported

    my current cpu is AMD Athlon(tm) 64 X2 Dual Core Processor 6000+ (2 CPUs), ~3.0GHz

    so im gonna upgrade from that, i don't plan on overclock so it looks like upgrading to 640 is the best choice?
  5. Perhaps not the best choice for performance but perhaps the best choice for bang per buck.
    Another great choice if it's available and inexpensive (should be less cost than the Athlon II X4 is the Phenom II X3 740 BE.It has a 95 watt TDP.Essentially this is a Phenom II X4 945 that has a core disabled (didn't pass specs).It would perform better in gaming yet perform less in some areas than the Athlon X4 640.
    Anandtech doesn't have the 740 BE listed on their benches only the X3 720 BE so to compare it fairly I compared the X3 720 against the X4 630 instead.
    Here were the results.

    I would say if you can pick up a Phenom X3 740 for less than the Athlon X4 640 that it would also be a great choice.
  6. its the 89w Windsor one since there's no 89w brisbane one found in the list
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