Just bought i7-5820k for $319, should I return it for the i7-6800k for $399? Well within the Return Policy.

MagusALL

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May 24, 2013
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Ok so I bought a new CPU paired to an MSI X99A MB with four sticks of 8GB DDR4 RAM C15 3000. Originally I bought a different RAM but decided to return it (Crucial Ballistix 2666 DDR4 2x8Gb). Today I open my iPad to see that Intel just dropped four new 2011v3 platform (X99) CPU's and I was pretty pissed. Now I don't know what I should do. My previous built consisted of a i7-3770k which I picked up for only $189 at MicroCenter when the i7-4000 Series came out for full price but as of right now MicroCenter has both i7-5820 and i7-6800 at $319 and $399, respectively. I would have thought that on launch day the previous generation card would have been discounted more but it was not as far as the website says. Now I am trying to build a system that I don't have to mess with for the next 4-6+ years. So is the 6800 better enough to return the unopened 5820k and get the 6800k? I know that its a different architecture so I really just unluckily bought last years technology and didn't think Intel would be coming out with a 2011v3 six core 12 thread CPU so soon after I picked up mine, mind you I didn't look to see when the 5820k came out (seeing how outdated it was therefore giving me insight into when the next 2011 CPU would come out.)

So basically I feel a little 'jipped' buying the previous generation card at a slightly lower price than the brand new one that just came out. MicroCenter says they have that card in their stores right now at $399. So is it worth it to swap chips considering I will only have to pay a little bit more for a new architecture and a higher clock freq? I also read that there are new features which this CPU enables regarding clock and core speeds based on use. Now I am wondering will my motherboard even be configured to utilize these features or not. I bought the MSI X99A SLI PLUS 2011v3 motherboard. So can anyone tell me something to help me out? I feel confused as on paper the clocks are only slightly higher but with a new architecture that also means natively it is faster clock to clock. What should I do and do you think this motherboard will support all the new features of the 6800K since it was released before it came out or should I wait to purchase a newer motherboard as well? Thanks for reading my long post and I hope other people are wondering the same thing so I can get a bunch of feedback. BTW I was putting in a Samsung 950 Pro NVMe 256Gb m.2 for the OS and planned on putting in the MSI Gaming GTX 1080 when that becomes available for purchase. I also have a RAID 1+0 set up for storage and two other SSD's that I put my games and important programs on like Microsoft Office 2016. BTW I will be using the Windows 10 Pro OS (64bit). I have a Corsair TX750 PSU as well if that helps you make up your mind about what I need or should do to build my 2020 system. I don't plan on using V.R. unless 'Hololens' is affordable (under $500) and I wanted to get the Ultra-wide curved G-Sync 34" Predator Monitor but am on the fence as I can get a 4K with G-Sync for much less money that can hit 120/144hz. But I really wanted the Ultra-wide Display, especially the curved one because it would fit my desk so nicely and if you have seen it in person you will know what I mean when I say "I want to game on that one (drool)".

OK that's all. Thanks for any and all replies.
 
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From the information to date, no. The performance improvement does not seem to be worth the 25% price increase. The i7 6800K is new, and the manufacturing process has yet to be refined through steppings. This applies a lot if you plan to overclock. The increased power density makes the 6800K more challenging to keep cool when overclocked. The info on this site required 1.45V to get to 4.4Mhz, and that's crazy high. (the better binned 6850K got to the same speed at only 1.25V with a concomitant drop in heat)

The ability to run single core applications on the 'best' core is helpful, but of limited value with this CPU.

I'm not sure the BIOS of the motherboard you have will run the chip today.

The 'architecture' is not really very...

Rookie_MIB

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I would stick with what you have. The performance difference isn't all that much and you'll still be good for quite some time. The only minor differences are:

- Standard DDR4-2400 support in the 6800k vs DDR4-2133 support in the 5820k. Depending on the RAM though you could get faster memory which is 'unofficially' working.

- 6800k has 3.4ghz base clock vs 3.3 base clock on the 5820. Turbo rates are identical though at 3.6ghz.

I don't really see anything else though. The PCIe lanes are both still 28 PCIe 3.0 lanes, thermals (140w) are unchanged, IPC would be slightly higher on the 6800k vs the 5820k, but not spectacularly so.
 
From the information to date, no. The performance improvement does not seem to be worth the 25% price increase. The i7 6800K is new, and the manufacturing process has yet to be refined through steppings. This applies a lot if you plan to overclock. The increased power density makes the 6800K more challenging to keep cool when overclocked. The info on this site required 1.45V to get to 4.4Mhz, and that's crazy high. (the better binned 6850K got to the same speed at only 1.25V with a concomitant drop in heat)

The ability to run single core applications on the 'best' core is helpful, but of limited value with this CPU.

I'm not sure the BIOS of the motherboard you have will run the chip today.

The 'architecture' is not really very different. The Broadwell-E is just a die shrink of the Haswell-E.

I waited to upgrade my 'computation' computer until the i7 6800K came out. All the precincts are yet to come in, but at the moment, a mature i5280K is better price/performance than the i7 6800K. In a year or two, when the i7 6800K is better refined and the pricing adjusts, this may change, but I'm not waiting that long . :)
 
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