Keep i5 3470 or upgrade to i5 3570k

blava

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Jun 19, 2009
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My current specs are :

Gigabyte Z68APD3
Intel i5 3470 3.2 GHz
3x4 GB DDR3 1800 MHz
GTX 960 2 GB GDDR5
XFX 450W CORE EDITION

CPU is overclocked via multiplier and frequency is 3.85 GHz when all four cores are active,3.9 GHz 2 cores and 4.0 GHz for single core.

I plan upgrading to newer midrange GPU from either Polaris or Pascal and I've been noticing some bottlenecking from CPU in games like GTA V,AC Unity and Crysis 3,I dont have money for upgrading to Skylake.

So what do you think,is it worth spending extra 30-40 $ for K version and overclocking to 4.4 GHz for eliminating any bottleneck.


 
Solution
Just to clear the air as it appears to be getting warm

Can you OC on the GB Z68 - YES, how high in large part will depend on the individual CPU and how much juice it will need to hit a given spot, say 4.4, a good 3570K can do it on lower voltages so less heat than a 'poor' 3570K. To that end will want to monitor temps closely.

On the DRAM, with three stick, you don't really DEACTIVATE dual channel - the DRAM operates in FLEX mode, in this instance 8GB would be running dual channel and the odd 4GB stick will be in single channel mode.

Also this is an 1155 so there is no support for QUAD channel at all, max is dual channel whether it be two or four sticks, it's still dual.

Just saw this article in another thread which may give you...
I'd say the 'bottleneck' is because your running 3x4 than anything else. Your supposed to PAIR RAM, else you deactivate Dual Channel, and stuck in Single Channel mode across the RAM, thus causing the i5 to Single handle the data than optimally spread it across DUAL channels of data in and out as it processes it.
If I say anything, I would ditch the RAM and just buy 2x8 and should be 1600 OR 1866 Mhz, I would just stick with the 1600, to ensure compatibility with your CPU, as it isn't a K (which means it is OC capable, what you are doing OCing is forcing it and is potentially dangerous / kill the CPU).
 



ROFL I didnt mean literally upgrade,I know you cant physically upgrade CPU,I thought about selling these one and buying i5 3570k.



This is first voice about this,can you be more detailed,how would these manifest in games like GTA V,AC Unity,Battlefield 4 and etc.

So you are saying I would be best to stick with 2x4 GB DDR3 in dual channel and if I want more memory later better to buy 2x8 GB DDR3 ?
Would 1x8 GB DDR3 work and not bottlenecking ?
 
None of those games should bottleneck a 3470. If you've overclocked the CPU on the standard Intel cooler then the CPU is most likely throttling due to overheating. If that's the case, then remove the overclock or buy an aftermarket cooler. Did you overclock via software or the BIOS? Did you change the VCORE?

Yes, you should run RAM in pairs, so buy another 4GB DIMM or remove one.
 


I have been monitoring if there is thermal throttling with Intel Extreme Tuning Utility and no there is no throttling,I'm using LC-CC-95 aftermarket cooler and temperatures dont go above 65 celzius during high CPU usage and gaming.

I've just raised CPU multiplier in BIOS to x40 one core x39 second and third and x38 fourth core so I get 4 GHz during single core load,3.9 GHz when two cores are under load and 3.8 GHz when all four are active.

Currently I have two identical 4 GB DDR3 Ramaxel memory sticks 1600 MHz so I should pair them in dual channel and remove third one ?
 
A 3rd gen i5 shouldn't be bottlenecking at those clock speeds. Upgrading would be a waste of time, it's such a slight upgrade it's more like a side grade. Ram shouldn't have that big of an impact, single vs dual channel. Other than for benchmarking purposes.

http://www.gamersnexus.net/guides/1349-ram-how-dual-channel-works-vs-single-channel/Page-3

Hardly any difference between quad and dual channel ram configurations in the real world. "Needing" to run ram in dual channel is more hype and myth than fact.
http://www.pcworld.com/article/2982965/components/quad-channel-ram-vs-dual-channel-ram-the-shocking-truth-about-their-performance.html?page=3

A few mhz difference in cpu speed isn't going to have a massive impact on gaming performance either. I5's won't bottleneck a gtx 970 or 980, much less a more mid grade card like a 960. What are the fps in the games? What resolution are you playing at? Latest game updates? Are you playing multiplayer online, if so, it could be the game server if it's heavily loaded.
 


Uhmm no one was saying Quad channeling was better or improved performance over Dual channel;; but yes you do need dual channel it isn't hype it is basic design. With Intel iCores, if you check the data flow chart as i did, it shows that when HyperChanneling / Processing to the Cores, when it 'reads the data' where does it get that data from: THE RAM.

Think of going to the store, there is multiple cashiers (CORES) waiting to process customers IN and OUT of the store.
Is it faster if all customers stood in just ONE LINE (Single Channel) to walk up to the multiple cashiers,
or would TWO LINES (Dual Channel) be faster to process all the customers? OBVIOUSLY TWO (DUAL Channel) is the answer,


 
I sold a 3450 for 60£ and bought a used 3570k for 95£. The 3450 could only hit 3.7 across 4 cores...so I now run 17% quicker. But also lets the ram hit 2133. For £35 I have seen much higher min frames in just cause, fallout and far cry 4. But no difference at all in cod and tomb raider.

For you already around the 4ghz mark, id say its not worth it.
 


Where did you get that lol ? Z68 chipset is meant for overclocking as P67 and Z77,I overclocked locked non K CPU and you say I cant overclock K processors,google before you say these nonsense.

@burgessanthony I can hit 3.8 GHz on all four cores,100 MHz more than you,do you think its worth then ?
 
As I said, in far cry 4 and jc3 I was seeing cpu maxing out...i have seen it drop to 80% with the 3570k. However, on some games which didnt use max, ive seen no change.

A lower clocked ivy i5 can absolutely hold back a 390/970 onwards...its happened to me.

But whether the cost is worht it is up to you.
 
@ Tom Tancredi, I think you missed the first link I posted. Which showed no difference between single and dual channel memory on games. Again the differences are apparent in synthetic benchmarks more than real world applications. I was only pointing out that dual channel shows no appreciable difference over single channel and quad shows no appreciable difference over dual channel. Other than perhaps in a couple of very specific memory intensive applications, but would be the exception not the rule.

If you looked at the first link I posted in that response and looked at the entire article, the test system was an i5 3570k which definitely puts it in the category of icore cpu's. I understand the theory however theory on paper doesn't always translate to real world gains.

http://www.gamersnexus.net/guides/1349-ram-how-dual-channel-works-vs-single-channel/Page-2
 
^makes sense to run dual channel. Any decent mobo has 4 slots, so 2x4gb is fine to start with. Anyway, upgrading RAM (especially if OC'ing) is a bit dodgy now whether it will even work. Makes sense to stick with dual channel if building new (or is it quad channel now with skylake?)
 
Just to clear the air as it appears to be getting warm

Can you OC on the GB Z68 - YES, how high in large part will depend on the individual CPU and how much juice it will need to hit a given spot, say 4.4, a good 3570K can do it on lower voltages so less heat than a 'poor' 3570K. To that end will want to monitor temps closely.

On the DRAM, with three stick, you don't really DEACTIVATE dual channel - the DRAM operates in FLEX mode, in this instance 8GB would be running dual channel and the odd 4GB stick will be in single channel mode.

Also this is an 1155 so there is no support for QUAD channel at all, max is dual channel whether it be two or four sticks, it's still dual.

Just saw this article in another thread which may give you some ideas about the 1155 CPUs and DRAM compared to the newest 6500

http://www.eurogamer.net/articles/digitalfoundry-2016-is-it-finally-time-to-upgrade-your-core-i5-2500k



 
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