does cpu matter most ? or gpu ? for gaming ?

prince_13

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i already have an 8gb hyperX fury x2 (thats 16gb all) and gpu GTX 750 ti but im planning to buy and cpu and mobo combo

does the cpu really affects the game ? cause my enthusiast friend advised me that my cpu doesnt matter but GPU and ram is ? is that true ?

btw hes build is just an i3 but it really perform good ? like the tournaments rig 😀
 
General rule of thumb says GPU is more important. HOWEVER, the CPU is becoming more important now as well. The graphics controller has been put on the the Core series of processors. Thus, you can actually bottleneck a GPU if it is extremely faster than the CPU now. The CPU does matter.

As far as the I3. Processors are getting very powerful now, even the I3 line.
 


i only have an i5 4th gen im planning to upgrade to 6th gen line
 
I would not bother upgrading your CPU as the i5 4th generation are solid CPUs and there is plenty of life left in it. You won't notice much difference upgrading to Skylake and it is an expensive upgrade as you need to change CPU, Mobo and RAM. Definitely not worth the money in my opinion. If I were you I would get a better GPU.
 


the bottomline is does the cpu matter ? in your opinion ?

for example
an core i3 has an 3.7 ghz
while the i5 has 3.5 ghz turbo to 3.7 or something

is there a difference ? except the number of cores and cache
 
Yes the CPU is very important but after a point adding more CPU power makes less difference although each game has different CPU & gpu requirements. The CPU needs to keep the gpu supplied with information at a fast enough rate so that the gpu is not kept waiting but after a point gains from better CPU's are negligible and material gains come from a better gpu.

Other things impact CPU usage such as fps, running a lower game detail setting will usually put the fps up and this will most likely increase CPU load depending on what setting you changed
 


does the cpu speed matter ? or the number of cores ?
 
It's not that simple. Speed does matter but you cannot compare CPU's of different generation or AMD v Intel just on Hz as this does not take into account that different CPU's can do different amounts of work per clock cycle (IPC), you have to look at benchmarks to compare them.

Cores and threads can be important. Generally most games don't use more than 4 threads but there are some that do benefit from more.

An example is an FX8xxx (8 core) OC'd to 4.8Ghz is generally beaten in most games by an i3 6100 (2 core but 4 thread) because the i3 can do so much more per clock cycle and most games cannot utilise the 8 cores properly of the FX8xxx.
 
There are loads of things worth knowing when it comes to CPUs, here are just a few:

1. Yes speed matters but a 3.5GHz Intel will outperform a 3.5GHz AMD due to the different architecture on each processor. So the speed is not the best indicator of a CPUs performance and should only be used when comparing similar processors.
2. i3 have dual core and i5 have quad core. The i3 is usually faster at single thread tasks than the i5 but multi thread tasks is where the i5 out performs the i3. As the number of games using multi threading is increasing, the i5 is a better choice than the i3.
3. Processors suffer from what is known as diminishing returns. This means that as processors get more expensive, the difference in performance becomes less. Therefore the difference in gaming performance between i5 and i7 is not that great. So while i7s are better than i5s, the difference in performance is not worth the extra cash. Therefore, you should only get an i7 if the extra cost is not an issue or you really need the extra performance for non gaming tasks.

This article explains multiple cores and hyper threading: http://www.howtogeek.com/194756/cpu-basics-multiple-cpus-cores-and-hyper-threading-explained/

As I said earlier, you have no need to upgrade from Haswell to Skylake processor and the amount it will cost you will show little increase in performance and is not worth the expense.

What is the exact model of i5 that you have?
 
It's a symbiosis. One doesn't work without the other. Having an i7-6600k does nothing for you when paired with a GT720, or a Gtx1080 will do nothing when paired with an old Pentium 4. You need to find a good balance that will maximize the potential of both.

Every game has its limits, its a hard code that is as high as it goes. Minecraft has the exact same output on a i5-3570k - gtx660ti as it does on an i7-6600k - Gtx1080. There is only so much data to be moved. Most games in the AAA category have a ceiling higher than the top line setups so pushing ultra settings on an i5-3570K - gtx660ti will get low fps while the i7-6600k - Gtx1080 gets high fps. Only because the lower end cpu/gpu can't effectively move all that data to the screen as fast as the high end setup.

Amount of cores has much to do with this as does core speed. Pushing a million lines of code through a dual core cpu at 1.8GHz is going to be painfully slow compared to the same amount of code pushed through 4 cores at 3.4GHz which is still slow compared to a 8 core 4.4GHz. If the game engine allows for 8 threads.

Almost all games are written around an i5 4core @3.2GHz. Whether this is the middle of recommended settings or the minimum requirements is upto the game engine. Most games will run between 1-4 threads. It's a way to maximize sales vrs ability since a 4core cpu is the standard. Dual core cpus are closing out, there's simply too much demand for data movement. You get games like GTA:V which require a 4 thread cpu simply because there's so much data, a dual core can't move enough to make it playable unless you shove that data through at 4.5GHz. It's the biggest opposition to the i3-6100. Ppl see it as a dual core cpu, but with the hyperthreading it's a 4 thread cpu that performs between the i5-6400 and the i5-6500. Simply due to clock speeds.
 


will i got core i5 - 4690k its still in 4th gen T.T
 


exactly thats what i mean hyperthreading ! i5 does not come with that spec , its kinda disappointed . but good in multi tasking ? 😀 i guess ????
 
My main rig is a i7-3770k with a gtx970. There's no game I don't get great fps from that even with every game I own set to max ultra settings, even some rendered at 4k. Intel generations aren't that far apart from each other in ability at the top end cpus.

If you slap hyperthreading on an i5, you get an i7. Basically.
 


but the 6th gen core i3 is so powerful processors evolves fast
 
Yes it is. It has a couple if benefits. It's 4 thread capable, like the i5, has skylakes better architecture, a couple of added instruction sets, a 3.7GHz stock speed vrs lower end i5's 3.2GHz or so, so yeah, it's powerful. For a lower end i5. Won't compete with the upper end, even the older i5-3570K beats it, but it's still king of the budget cpus
 


so the i3 can beat the i5 ?
 
Yep. In performance, even on games like Witcher 3, the i3-6100 leds firmly between the i5-6400 and the i5-6500. That's multiple threads performance. In single threaded apps like Skyrim, the i3-6100 outperforms the i5-6500, simply due to its greater stock speeds. It's only in massively heavy thread games like multi-player WoW on a 64 drop server etc, that hyperthreading shows its limitations as it's 2x threads per core start using up a cores available bandwidth, slowing down the throughput.

For its price, the performance of the i3-6100 is far beyond any of its closest competition.
 


but why i didnt hear about the i3-6320 in games ? i3-6320 stock speed is 3.9 ? why :/