i7 5820k vs 4790k

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fnaan

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Hi

I'm planning to buy the new Hardware computer ( x99 , ddr4 , GTX 8xx/9xx )

Anyway , is there big difference between 4790k and 5820k and dose it worth the money ?

Actually I'm disappointment for the 3.3 GHZ to i7 5820k because the i7 4790k has 4.4 GHZ 🙁

So dose it worth the money ? Or I just go back with 4790k and the old hardware ( z97 , ddr3 ) ??
 
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JohnnyLucky
Just in case you did not know it, you would have to buy the new CPU, a brand new X99 motherboard, and brand new DDR4 memory. You cannot use the new cpu with older boards and older DDR3 memory. Right now you can expect to pay $1,000.00 or more for those three components.

I read numerous technical reviews comparing the Intel Core i7 4790K with the new cpus. The 4790K is a definitely better value and it costs a lot less.
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I read that it's partly due to the extra cores which is also why the 8 core clocks are lower than the six cores clocks, I've read three good reviews that have all said the same thing, Your not gonna get Haswell-e to overclock as well as the others.
 
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Let me give my opinion, maybe this will help, I myself also was considering to buy a brand new i7 5820k, because who does not want a 6 core intel CPU? It is freakin awesome!!

But (here is the big but, lol...) how good is the X99 motherboards? Why is DDR4 RAM so expensive? DDR4 RAM, there is not a huge variety to choose from, it is only G.skill and Corsair (very good RAM but I am a Kingston fan boy) at this moment to choose from which I know of, what if they come up with a better X99 motherboard? Say like a X109 (just a example), what if currently there is problems with the X99? What if there is a upgrade model of the intel 5820k with better speeds then 3.3GHZ at the same price or just $20 more?

The other problem is that the i7 5820k uses 140 watt of power, so if you have a 550 watt power supply, you will need to upgrade that as well, where the devil's canyon uses only 88 watt. Unless you start overclocking then you will need more power anyway, but I am still very new to overclocking so I am very careful when I do overclock, or I just use turbo boost.

To my conclusion, I am going to wait it out, I am going to play with my old i5 2400 sandybridge and enjoy it. I will upgrade my rig next year say December when all the latest and greatest CPU's, motherboards and RAM has released (we will probably see DDR4 RAM speeds probably of up to 4111MHZ my personal opinion) and also by then Nvidea has released they new line of awesome cards and obviously Radeon will give them a run for their money.

But if you want to buy straight away I say go for the devil's canyon, at a clock speed of 3.5GHZ it is a fantastic CPU and you can overclock it to 4.4GHZ which is awesome!! It will give you satisfaction for many years to come, just make sure you have enough DDR3 RAM, because now DDR3 RAM will become more expensive (well, in my country the older models of RAM get more expensive, I am from South-Africa). Go a bit overkill with RAM, go for that 16 GB then you have more than enough RAM for years to come, 2133 MHZ is fast enough.


This is my personal opinions how I would like to buy, I hope this helps.


Cheers
 
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I think that if you have the money you should go with a x99 system, the truth is that games doesn´t benefit with this platform, but other multitasking activities will do, and also because is a new platform you can later if you want upgrade to a 5930k or even 5960x and even change your ram when ddr4 gets more optimize and also I think because is a new socket, maybe we can see in a future new CPUs using the 2013-3 socket given you more future proof, about the 3.3 Ghz well yes, games benefit with less fastest cores, but you can overclock it and get a better performance.
 
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That would be R8,686.1324 in South-African rand and KWD226.2191 in Kuwaiti Dinar... still expensive
 
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OK, I bought a different Z97 board, Maximus VII Hero, and put my 4790k in it over the weekend. It's running at 4.7GHz solid right now with no throttling, at standard voltage no less, and sticking at 65C under full load with the H100i cooler. DDR3-2400MHz memory, too. So, it was another failing of that crappy Z97-WS board. I admit it, Haswell isn't as bad as I thought.

I still don't recommend Haswell over Haswell-E due to the PCIe restrictions. I can't use my raid controller with my two GTX680 video cards. There simply aren't enough PCIe lanes. I wish you luck, which ever you choose.
 
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So it was the board, just as I suspected. You actually got a pretty great chip if it manages 4.7ghz at stock voltage (unless the mainboard used to put in too much voltage anyway).

Depending on the motherboard, you'll have 16 pcie lanes for gpus. Unless using more than 2, there won't be any difference to two slots running at 16x (which you need the 5930k or 5960x for). Not even in benchmarks. If it comes to using additional devices, then you may see benefit of the additional pcie lanes. But are they truly worth $300 extra? Paired with the extra performance, to some. Well, not to me.
 
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Well, that would depend on what all hardware you want to run. If someone wants to run a RAID controller for 8 drives (like I did, until this weekend) for data speed and redundancy, or a PCIe x4 SSD for pure speed, they can't do it with Z97. Running 2 video cards, a RAID controller, a PCIe SSD, and a 10Gb NIC on one system would require a Core i7 5930k or higher. The I/O Intel has designed into the mainstream chips just isn't enough for real versatility, and once a design includes enough of that, we get an overblown CPU config.
 
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So if I wanted to go with the i7 5820K maybe to not upgrade longer, would this CPU work with two SLI gtx 980s very well?

And could someone explain there PCI restrictions to me that has to do with this CPU?
 
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Those GPUs would be fine in SLI with that CPU.

The number of PCI lanes determines how much data is going between the the components and the motherboard/CPU combo. You will only have 28 lanes with the 5820K vs the 40 lanes you get with the 5930K and 5960X. Essentially what that means is you can hook up more components and have more data flow between the components and the Mobo/CPU combo. For instance, if you have one GPU it would max out at 16 lanes. If you had two GPUs in SLI, they would be maxed out at x16/x16 if you had the 5930 or the 5960. If you had the 5820, you would have x16/x8. It splits more with more components regardless if they are GPUs or sound cards or network cards. So, if you wanted (4) GPUs, a sound card, a network card, and a multiple USB 3.0/2.0 card; I recommend the 5930K or the 5960X. Just determine how many devices you want and base it off of that.

Do keep in mind though, that performance of GPUs isn't really affected by x8 or x16 lane setups in regards to SLI or Crossfire.
 
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Hello , im workign as pc technician and specialist to many years , and i do every day 4790k oc , but how u can do it 4.7 with mugen 4 unten 75 without throtling LOL , 😀D if u do it sent me photos and proof , and i will leave my job forever ,and im look for another job for me , 😀DDD
when we tolking about OC , its not only up 4.7 and start our pc , if u want to be sure if your oc working u need run hard test about 5-6 HOURS NON STOP PC . AIDA64, PRIME , FURMARK ,and many other soft to get a extreme test , u need see all cores temps , u need to follow GRA fps , everything , people can do it and 4.8 and 5.5 😀
but is not overclokimng its just up the Mhz until 4.7 . please dont tolk about something when u dodnt know what is mean excatly OC,
4790K , max 4.5 , voltage 1.26 cpucha 1.2 . PLL enable , min cpu ratio 40 max 40 , and more some non standart setting , im not able to wrtie all here 😀
4.5 with mugen 4 temp always come betwwen 78c - 85c total package temp can be 74 but when need to know the core temp which of core had the hight temp and we need in bios try to fix the prob and again run the test , thats mean OC , chao
 
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You should read everything before posting a reply... the devil's canyon was designed for OC, I am sure enthusiast can easily reach 4.7 GHZ, read the specs on this CPU

http://ark.intel.com/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz

Turbo boost is 4.4GHZ... I do no know much about overclocking, but something tells me you are a bit of course
 
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There are many factors such as Silicon lottery, system components and cooling...
 
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I did some reading work on the web about the i7 4790k and I have seen a lot of people complaining about its running too hot, but I believe it was with the L3 batch of the i7 4790k and it was fixed with the L4 batch, I could be wrong, you can't believe everything you find on the internet.
 
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L3 means made in 2013 and L4 means 2014. The 2014 batch is supposed to be better. I have a L4 batch and it goes to 4.6 cache and clock with ease...

One of my friends has a L4 batch and he can only OC 4.5 cache and clock.`````````
 
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too am stuck on whether to upgrade to a 4790K or a 5820K, I wont be overclocking or running multiple gpu's but I do want a PC which wont become obsolete in a few years time in case my financial situation is such that I cant afford a new pc.

I currently have an AMD so Im going to have to buy a new motherboard anyway, I mostly game but I do tend to have multiple things running at once like twitch tv, 2 games sometimes and multiple windows.

For me a 4790K will cost $860 for cpu n mobo and the 5820k will be $1200 for the cpu, an Asus x99 mobo and 8gb of Crucial 2400mhz DDR4 RAM.

What I'm going for basically is overkill in having way more power than I need rather than just enough and for years to come.

Any thoughts on that?
 
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And I bought the i7 4790k, fun thing was when the motherboard was not working.... Anyway, it seems like a really good CPU and I am only going to use one GPU so I figured I will not need much more then the i7 4790k, hasswell - e does look really awesome but then I would of started building a new PC only next year if I went that way
 
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Okay, so for starters there is a huge difference between those two cpus. One is a 4 core and the other is a 6 core. If you don't plan on/need/want to overclock either one of these then you will be paying for unused potential. As far as pure power from both, the 5820k will be better. As far as future proofing they're both about the same. The 4790k is the best cpu you can get for the 1150 socket and the 5820k is bottom line for the 2011-E socket. Outside of the number of cores, the biggest difference is in the number of PCI lanes the 5820k is capable of. This comes into play with ALL accessory cards including GPUs. When it comes to overclocking, the 5820k will be at a lower clock. But you CANNOT compare a 4790k @ 4.0Ghz to a 5820k @ 3.3Ghz (hypothetically speaking). Reason being is that the 5820k has 6 cores @ roughly 3.3Ghz each. Compared to the 4 cores of the 4790k @ 4.0. You can compare the benchmark performance, but that would be like comparing a V6 gasoline engine of a slightly older model car to a V8 gasoline engine in a newer car.
As far as future proofing goes, both will do you fine. Apple is using the 4790 (not k version) as their top chip in their 5k 27" iMac and no other mainstream computer company is putting either one of those CPUs in their prebuilt computers.
 
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how did u find that ur cpu was down clocking i bene haveing some stutters in a game i run mine at 4.4ghjz with cool master nepto 240m i rmaed video card tested ram stick and upgraded my power supply
 
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Personally, for anyone going with the new x99 board, at this time i'd stick with the 4790k. There are a lot of reviews out there, and for the positives of the 5820k, there are a whole bunch of negatives that are going to be resolved as the chipset is refined, and software is updated yadda yadda.

The i7 4790k is a universally loved chip at excellent prices right now.

 
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Sorry, for helping resurrect an old thread. But, that being said, the 4790K is still the best chip for the money on the market for those that don't want to run Xeons or pay an ass load for a CPU. There is no real reason to get any of the new Skylake CPUs and the 5820K is still not worth your time (unless you absolutely need the small amount of extra PCI lanes it gives you). Also, there is a reason I say Skylake is not worth it. If you have a 4790K (just as an example) and you compare it to the Skylake line, even against the 6700, there is no significant difference in performance. The only real difference is only noticed when you don't have a GPU in your system. The Skylake CPUs are more like Intel chips smashed with the AMD APU idea. Benchmarks also show that they really don't save that much power either. Again this is only going to show as a power saver or better in performance when you are not running a GPU in your system and you have to rely on integrated graphics from the CPU. So, the 4790K still dominates and is your best option. This becomes especially true if you already have a mobo with the 1150 socket on it.
 
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