Core 2 Quad and Geforce 560 TI
I have a Core 2 Quad Q6600 on the way, and I just installed a 560 TI and my current CPU, the Core 2 Duo E8400, and it is bottlenecking like no other. I wanted to know, how far am I going to have to overclock my Q6600 to reduce a bottleneck on the 560 TI. I play games like Day Z Standalone, Mafia II, and Minecraft. Thanks!
It depends on what cooler you have - I wouldn't do any kind of overclocking with the stock cooler. I had a Core2Duo E8400 and could do a +700MHz overclock without voltage changes easily with an aftermarket cooler. However, the performance increase was marginal.
DayZ is a very CPU-heavy game - even my overclocked i5-4670K struggles with it. I think overclocking a CPU this old isn't going to save you from the bottleneck.
Here's the Motherboard
I have 4 GB of Hynix (used in IBMs) DDR2 PC2-6400 800 FSB
I'd underclock the memory to 667 (you'll be overclocking the memory too when you raise the FSB) and then give the CPU a 400MHz overclock first. Go for higher clocks if your temps look good and you're stable as a rock. You might need to play with the voltages tho.
Take note, that you need to adjust the jumpers with this particular motherboard if you overclock a CPU that is running on FSB1066 (like the Q6600).