i7 4770k & gtx 780 vs i5 4670k & 780ti

Quest_Skyrim

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Oct 10, 2013
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What games are going to play or/and what application do you plan to use? Do you plan to make use of SLI (multiple video card setup)? What resolution are we talking about, if you are going between those two option for video card?

For general gaming there will be not much gain in having hyperthreading (HT) enabled as the difference between these two processor are only 100 MHz (3.4 vs 3.5 GHz@stock speed and with access to multiplier for core frequency (K version of both CPU) which you will be able to adjust yourself). Both processors will operate in most situation as quad core CPU (from OS POV it will show 8 threads for i7) as there is still very few games or application that make use of HT or even all four core from i5.

I think today it is only Crysis and BF4 that might take advantage of HT from i7 and in the near future there will possible be more games, but then one have to remember that it will be limit for how much SMT one can do in a game. (Meaning how much you can actually divide processing in a game between core or threads). There are threads here on TH that discuss this matter, so I would recommend you to search these threads yourself.

http://www.tomshardware.co.uk/forum/354727-28-does-hyperthreading-gaming

Important wiki regarding HT/processing:


http://en.wikipedia.org/wiki/Simultaneous_multithreading
http://en.wikipedia.org/wiki/Thread_%28computing%29

You can confirm this yourself, by comparing benchmarks for both processors (i5 4670k vs i7 4770k) and for the same games. The gain in processing power through HT do not always translate into a large jump in FPS and in some cases you might even be able to OC higher without HT, so a faster video card will be more efficient then to put money into HT.
 

Quest_Skyrim

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Oct 10, 2013
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If you are going to capture while you are playing a game (like Twitch or YT), then it is possible that might gain more from these HT on i7, but there are also other solution like Shadowplay from nVidia (meaning it is the GPU that will do a larger part of that work). In short there are always a trade off between what you want to do and what you have to pay for it to be done.

Future games might have better API (like Mantle from AMD and DirectX 12 from MS) and will even be designed to make better use of multicore and threading (it is also dependent on how OS will adjust load between core/threads; read up about win7 vs win8.1 here on Tom's hardware forum for "core parking" etc).

http://en.wikipedia.org/wiki/Nvidia_Shadowplay


Don't forget to get a more powerful power supply unit into your budget while you are at the planing stage to drive the 780ti as I suspect it will draw more power then a 780. Make sure that you also will have a enough with cool air in your case to get it to run at it highest turbo speed as long as it possible without throttling down.