ssj12 said:
You really cant go by benchmarks of the Core i7 because alot of games aren't programmed to handle the QPI properly resulting in abnormal performance changed versus the standard FSB based processors. There is no reason for the Core i7s to have very minimal gaming performance when system and memory benchmarks are through the roof. Its all basedmon the optimization of the games. ... |
While I agree that the person you quoted is probably wrong, that statement about the QPI needs a citation, preferably to an Intel source. There is no such thing as optimising for QPI (tell me if you can show otherwise); all QPI does is improve memory bandwidth and memory latency which should only have a positive effect on apps.
The reason why gaming performance is down compared to other apps is mainly due to Hyperthreading. Gaming performance increases by about 10% when HTT is disabled. Intel did this because Nehalem is a server chip so performs optimally at 8 threads with little branching. Games tend to be few threads with high branching.
