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hyperthreading and gaming

K

Kristijonas

Senior member
Is it possible that some PC games will work faster will hyperthreading turned off? I have i3 and i5 SB CPUs in mind. I currently have hyperthreading off for my i3, and I don't feel a difference, really.
 
Its not beneficial to turn off Hyperthreading for dual core setups as much as quad core ones do.

I do notice a responsiveness difference every step when I go from 4+HT to 4, then 2 then 1 core. Responsiveness is different from absolute performance of course.
 
Yes some games did and do not benefit from HT-Arma 2 was an example older games are more likely not to.
 
Kristijonas said:
Is it possible that some PC games will work faster will hyperthreading turned off? I have i3 and i5 SB CPUs in mind. I currently have hyperthreading off for my i3, and I don't feel a difference, really.
Click to expand...

Yes some games run faster with HT turned off but this is usually documented on I7s which are 4c8t I haven't seen anyone test with an I3 2c4t. As for the I5 SB chips in your post they don't have hyperthreading on desktop chips so the point is redundant unless you are refering to mobile parts.
 
Just make sure you have 4 threads available. Only game i can think off that could benefit from HT is BF3 because it can use 8 threads, however it will be heavily GPU bound long before needing 8 threads.

Civ V is another highly threaded game but HT dosent seem to help it much.
 
Kristijonas said:
Is it possible that some PC games will work faster will hyperthreading turned off? I have i3 and i5 SB CPUs in mind. I currently have hyperthreading off for my i3, and I don't feel a difference, really.
Click to expand...
i would never turn it off on a dual-core i3

GameBench-1.jpg
 
Maximilian said:
Just make sure you have 4 threads available. Only game i can think off that could benefit from HT is BF3 because it can use 8 threads
Click to expand...

Unless HT was causing servere problems with a specific game I would always leave it on even on a 4c8t chip. Remember even if a game can only use 4 cores your pc will still be running an OS in the background and also quite often performing other scheduled tasks and being able to run 2 concurent threads on the same core would be very useful in that situation.
 
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