i7 6700k vs 4790k who is better for iMac 2015

[parisinvest]

hi you all, I'm recently upgrading my iMac 27 2015 5k, searching on internet I found the most powerful cpu are 6700k and 4790k, but even there are some comparison for them on some website, still not an idea which one is better, specially we are talking for iMac slim with 2048GB Video Ram, 8TB fusion drive, 32GB Ram, need to consider the puissance, the hot, etc together, we are big family, so if anyone can give his experience, that will be very appreciate. thank you so much.

 

[cynics]

I think you maybe confused, or I am by the question.

Those are 2 different generation CPU's the 6700K is a 6th gen Intel CPU (Skylake) and the 4790K is 4th gen Intel CPU (Haswell). The first number in the model is the generation, so a 7700K is Intels 7th gen CPU's.

Generically benchmarking the raw performance may give the appearance the 6700K is faster (+/- 5%) there is a lot of other things going on under the hood for increases in performance in specific task such as HEVC decoding. The 6700K overall is a better CPU although runs warmer.

The sockets are different as well, Skylake is LGA 1151 while Haswell is LGA 1150. I believe the notches on the CPUs are slightly different also, this will prevent one from going into the others socket. AKA they aren't interchangeable and the 2015 iMac will only work with specific Skylake CPU's.

Which CPU do you currently have? Regardless of your answer I would suggest sticking with it.

 

[parisinvest]

I think you maybe confused, or I am by the question.

Those are 2 different generation CPU's the 6700K is a 6th gen Intel CPU (Skylake) and the 4790K is 4th gen Intel CPU (Haswell). The first number in the model is the generation, so a 7700K is Intels 7th gen CPU's.

Generically benchmarking the raw performance may give the appearance the 6700K is faster (+/- 5%) there is a lot of other things going on under the hood for increases in performance in specific task such as HEVC decoding. The 6700K overall is a better CPU although runs warmer.

The sockets are different as well, Skylake is LGA 1151 while Haswell is LGA 1150. I believe the notches on the CPUs are slightly different also, this will prevent one from going into the others socket. AKA they aren't interchangeable and the 2015 iMac will only work with specific Skylake CPU's.

Which CPU do you currently have? Regardless of your answer I would suggest sticking with it.

hi thank you for your reply, i think you are right the 6700k is better thank 4790k, although some test website show the other opposite position. the cpu i've now in my imac is i5 6500 3.2Ghz, lga1151, but it wont accept i7 7700k, so i though the 6700k is the most powerful we can put in it and work well. but what i don't know is why ebay seller sell imac 2015 with i7 4790k? is that possible?

 

[gian8989]

hi thank you for your reply, i think you are right the 6700k is better thank 4790k, although some test website show the other opposite position. the cpu i've now in my imac is i5 6500 3.2Ghz, lga1151, but it wont accept i7 7700k, so i though the 6700k is the most powerful we can put in it and work well. but what i don't know is why ebay seller sell imac 2015 with i7 4790k? is that possible?

no, 4790 is 2014 iMac.