Are these legit? (used i7-4790K)

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stavrosmast

stavrosmast

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Apr 7, 2015
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Links wont show up ?

https://www.ebay.com/itm/Intel-Core-i7-4790K-4-00-GHz-Quad-Core-LGA-1150-SR219-CPU-Processor/153256372106?epid=197284894&hash=item23aecaa78a:g:dVYAAOSwr65cAZ-i:rk:1:pf:0

https://www.ebay.com/itm/Intel-Core-i7-4790K-4GHz-Quad-Core-BXF80646I74790K-Processor/132789539072?epid=197293587&hash=item1eeadf9100:g:5mQAAOSwDJNbpLmp:rk:2:pf:0

https://www.ebay.com/itm/Intel-Core-i7-4790K-4-00GHz-Quad-Core-LGA-1150-CPU-Processor-SR219/153274567392?epid=197288702&hash=item23afe04ae0:g:AWwAAOSwqjhcAZ~p:rk:3:pf:0
 
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Solandri

Solandri

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Jan 4, 2012
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Supply and demand. Intel doesn't make them anymore, so the supply is fixed. A bunch of people with older motherboards want to upgrade, but don't want to shell out the cash for a completely new system. So they look into upgrading the CPU. And if you're going to upgrade the CPU, might as well go for the best you can get. If you limit the search to sold items, you'll see the typical selling price is right around $200-$230.

As opposed to, say, the i7-4770k, which is not top of the line (88% the clock speed of the 4790k) so there is less demand for it. Its selling price seems to be only about $150.

The last half dozen generations haven't really added much to performance. Clock for clock and core for core, Sandy Bridge (i7-2xxx) is within 30% of the performance of the latest CPUs I believe. It just burns a lot more power. Only every other generation matters (the other is just a die shrink and a few bug fixes). And the performance improvement clock per clock every 2 generations has only been about 5%-10%. Less if you factor in the Spectre and Meltdown fixes.
 
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iamacow

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Feb 11, 2015
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I guess in the UK its a bit more. The 4790K can be found under $100 (88 Euros) in the USA. Still the 4770K is even cheaper and IS the same CPU, just with higher turbo....

I really should sell mine for 200 Euros, easy money.
 
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punkncat

punkncat

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Apr 3, 2018
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I see no reason to think they aren't legit. The seller has a pretty good rating at 98.9.
I am not really sure I would spend that on one, but still probably the cheapest method to get better improvement from a mobo/ram combo that old. If you don't have a mobo (chipset) that can work with the K proc, there would be little reason to do so.

I would point out that if you are ok with a locked proc, you could likely find a complete refurb system cheaper than this, swap your cpu and then have a working system to resell.
 
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vMax

vMax

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Aug 7, 2006
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In terms of legit, on Ebay make sure you buy from someone who has a high 'Poistive Feedback' which is under Seller Information and make sure he has sold more than 50 items...I try and buy from people with at least 99% feedback scores...and also check there 'Feedback as a Seller'. Do this and you should be more than fine. I have not had an issue doing this in over 10 years....Ebay are also not bad at sorting things out but you just need to be sensible when buying by doing a few basic checks...
 
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iamacow

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While this article (linked) have nothing to do with gaming with a GTX 1080 is does cover a i7 4770K vs a i7 7700K with a GTX 1070 https://www.overclockersclub.com/guides/memory_speed_vs_performance_intel/ . Might be helpful to you.
 
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iamacow

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No it doesn't. its a 10-50fps difference between 1333 and 2400 for DDR3. Check out the DOW 3 page. Games that do not use the CPU much (aka not CPU bound) saw little difference. Even less when the Video card is the limiting factor (aka 1440P gaming).

Edit: Avg isn't that much of a difference but Min and Max has huge swings. But as for 7700K vs 4770K, its not much of a difference when using a GTX 1070.
 
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iamacow

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Than make sure you get 2400 DDR3 CL10 because DDR3 does have a difference in FPS when it comes to ram speed. DDR4, not so much. If you play at 1440P, you are going to be GPU bound more often than not playing new games. Than it won't matter if you have "faster" ram or a better CPU.

Edit: I actually think those numbers in the last chart are swapped. 1333 isn't faster than 2400. It would make sense if it was just an error. Or maybe 1800 and 1333 is swapped.
 
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stavrosmast

stavrosmast

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I already have 2400mhz ddr3.. Is there somewhere a decent tutorial on how to up that to like 3000 ? the stock ram voltage is the classic 1,65V. Also I really play intensive cpu games like gta online,forza horizon 3,pubg,rainbow six siege,black ops 3,battlefied, etc
 
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iamacow

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The fastest memory kit for DDR3 is 3200 and that is extreme (and limited production run). Runs at CL13, which interesting enough on the performance index isn't much faster than 2400 CL10

2400 CL10 = 240 / 4.16ns
3200 CL13 = 246 / 4.06ns'

So while it is faster, the amount of strain it will put the CPU memory controller and the extra I/O voltage needed isn't worth it. Your more likely to kill the CPUs memory controller than to keep 3200 stable for more than a benchmark. You could manually try and set it that high. Though your BLCK will need to be 125 and that causes other problems too. Its better to buy a faster video card than buying memory past 2400 (for DDR3 platforms).
 
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stavrosmast

stavrosmast

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Right now I have an i5-4460 at 3502mhz on bios and 3307 on windows (bclk 103.2) the heat is pretty extra than stock but I have a hyper 212 evo so Its ok. Ram due to the bclk oc is at 2484mhz.. And 16gb ddr3 ok. My 1070 is oc'd too.. The issue is when I want stable over the usual 60fps limit.. I have a dell s2716dg too
 
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iamacow

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A faster CPU will help in all the games you listed as they are all CPU bound due to in-game physx and AI stuff bound to the CPU. Some more than others. So the i7 4790K will be a decent upgrade. I wouldn't expect more than 10fps increase max. Its hard to say what the total increase will be since you are already overclocked. But all those games like more cores. Even if they are just hyper-threads and not real cores.
 
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