The classic question- i5 4670k vs i74770k

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Finnb

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Sep 24, 2013
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Hi there,
I'm currently in the process of building a gaming computer and was pretty sure that the i5 4670k would be fine as games only really use quad core up to this point. I was a little unsettled to learn that watch dogs which is the game I'm half building this computer for recommends an octa core cpu to max it. WIll the I5 be alright or should I go for the i7 or even an amd 8 core. Are the AMDs the same as intel in that they are a 4 core with HT to make 8? Money is an issue and I'd really prefer not to have to throw another hundred dollars on the cpu unless it is completely necessary.
Thanks for any help you are able to privide
Finn
 
Solution
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The limiting factor is if the program is coded to use all of the cores. Many programs only use a certain number of cores or only one.

A i7 has 4 cores and 8 threads with hyperthreading. But these extra threads are for precision math and not floating point which almost all games use. The programs that use these extra threads are mostly AutoCAD and...
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darkguy2

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Oct 4, 2013
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No you do not need a i7. The only reason to get one is if you are going to be doing rendering or you are a hardcore BF4 multiplayer since that is the only game that will use the HT. And only in multiplayer.
 
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Gaidax

Gaidax

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Sep 27, 2013
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I5 is just fine, pay no mind to optimal "requirements". Metro Last Light also claimed it needs I7 for the best bang - I5 ended up giving the same FPS at max in the end.

MAYBE in future, in like a year or two we will see games that will actually make a decent use of I7, but currently aside from Crysis 3 (I think) and BF4 massive multiplayer there are none. By the time it becomes common - you will probably either be upgrading again - or just deal with it, really - it won't be the end of the world in any case.
 
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Finnb

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Sep 24, 2013
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Cheers for the replys guys, i do have question about cpus in general that i thought you may be able to help explain. I was doing some reading and it was saying that a an 8 core cou say running at 2Ghz would operate the same as a quad at 4 as it has double the threads. Is this true? If so would overclocking an i5 in a game that wanted 8 cores close the performance gap?
Cheers
Finn
 
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darkguy2

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The limiting factor is if the program is coded to use all of the cores. Many programs only use a certain number of cores or only one.

A i7 has 4 cores and 8 threads with hyperthreading. But these extra threads are for precision math and not floating point which almost all games use. The programs that use these extra threads are mostly AutoCAD and other rendering programs.
A i5 has 4 cores and 4 threads so it does not have hyperthreading.

In real life you will see better performance in most applications with a higher speed quad core than a slower octo core. But AMDs usually OC better. Intel is a little overpriced but it is because they can since they have the better CPU.

Make sure to choose a best answer so others can see as well.
 
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