badhabit wrote:This is exactly the point here, log2 can be cpu bound while it can't even utilize 2 cores fully.
Once again: this was not the point here until you chimed in and brought up something completely irrelevant to the topic, hijacking it.
badhabit wrote:The recommendation for 4 cores makes little sense, the requirement should have been "dual core with as fast as possible clock speed, >3ghz"
Yeah sure .. and then you would have bitched about the >3ghz part as you did about the GPU part
It is undisputed that any program's performance scales with increased CPU power. In fact that's what everybody expects when a program is executed on a better CPU. In case of LoG2 the CPU is able to send more data to the GPU to work on. Your screenshots done before and after your CPU upgrade show this rather well. Comparing the performance of both your old and current CPU an increase of up to 30% was expectable since your old CPU and GPU had not hit their performance limits with all LoG2 options on "Low".
Still the fact remains that the OP's CPU is about 15 to 20% more powerful than your upgraded CPU. Yet he can't see a benefit from it because his GPU is way way weaker than yours (-65 to -70%). Around 30 fps is prolly top notch what he can get, no matter what kind of settings or tweaks he'll choose because his GPU already operates at it's performance limits.