well i say bottleneck for 99 because according to many sites , a 8800gtx needs a very fast cpu and also take a look @ tomshardware charts :
http://www23.tomshardware.com/cpu_2007.html
to be honest, if you are going to upgrade completely just buy it anyway and whether it is bottlenecked or not you will still use it for ur next computer anyway, saves buying a placeholder
i agree with spuddyt , you can buy it now and always use it in your next computer . Also keeping everything in mind you should get excellent performance with a future buffer.
You'll be fine. Of course, with any GPU a faster CPU will help it perform even better, that is a no brainer, but it will still perform well. Just overclock that 930 as far as it can go and enjoy the GTX.
Some games are really CPU-bound, so even with a 8800GTX, you might get not so good framerates because of the CPU. But your CPU is still not that old or slow, so don't worry too much about that. In general the 8800GTX will serve you very well, and you'll get excellent performance in most games.
Since you plan to upgrade the whole thing, you'll be glad you have the 8800GTX to begin with.
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