question about i7 4790k and HT

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Omar Strobe

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Apr 15, 2014
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i just recently bought a i7 4790k with z97 asus-ar mobo and i have 8gb of g skill ram 1600mhz and a r9 280x 3gddr5, my question is will leaving hyper threading off be better for me as far as performance in gaming? or should i just leave it on? will it be better fps wise with it on or off?
 
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Vitric9
Right now almost any DX11 Game's framerate benefit only from physical Cores. not to say that hyper-threading wont help overall system performance in game it just does not give a Framerate increase. One thing to keep in mind is that it has been noted that DX12 will benefit from Hyper-threading. Even Manlte may make use of it. I doubt it considering it is AMD hardware that it is optimized from. As of right now the i5 4690K will get the same performance as the 4770k or 4790k, within margin of error.

EDIT my grammar is off today....
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dovah-chan

dovah-chan

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Ahh the wonders of hyperthreading. Whether you leave it on or off doesn't really matter. As of now, very few games are able to benefit from hyperthreading (Crysis 3 is a popular example). In fact hyperthreading is why many people choose to buy an i5 for gaming instead of an i7. An i5 4690K and an i7 4790K are nearly the same CPU except for three things; L2 cache size, hyperthreading is enabled on the i7 and not on the i5, and price tag. Hyperthreading is pretty pointless for gaming workloads as games aren't that CPU intensive and are more GPU bound.

So really it doesn't matter if you leave it off or on. Hyperthreading doesn't activate until around an 80% workload anyway.

Oh and if you are wondering what it is, hyperthreading is essentially the process of creating 4 more virtual threads for applications to work with. It works exceptionally well in work station rendering loads but is not very supported in the world of gaming since there is really no need for it.
 
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Vitric9

Vitric9

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Jan 26, 2014
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Right now almost any DX11 Game's framerate benefit only from physical Cores. not to say that hyper-threading wont help overall system performance in game it just does not give a Framerate increase. One thing to keep in mind is that it has been noted that DX12 will benefit from Hyper-threading. Even Manlte may make use of it. I doubt it considering it is AMD hardware that it is optimized from. As of right now the i5 4690K will get the same performance as the 4770k or 4790k, within margin of error.

EDIT my grammar is off today....
 
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Omar Strobe

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Apr 15, 2014
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ok so fps in some games with HT on? so from the 2, its better to leave it on over leaving it off?
 
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