Intel i7-7800x or i7-7700k

[DJPUP]

I currently have an Intel i5-6600k with an MSI krait gaming Z170A motherboard and Ive been saving up recently to be able to afford a worthy upgrade. I have about £600 and would like to get the best quality CPU (and motherboard) for that price. I’ve done some research and found that these CPU’s are the best “bang for my buck” but I can’t see a major difference between the two. Plus if I was to get the i7-7800x, I was thinking of getting the ASUS strix x299-e gaming motherboard as it fits the budget pretty much perfectly and looks really good, but I don’t know which board to choose if I was to get the i7-7700k.
Pls help

 

[edscdk]

Why not a 8700k? Unless you need the extra cores I doubt anything is going to be noticeably faster than what you have (assuming you have overclocked at least a little)

 

[chrcoluk]

An 8600k is definitely better bang for buck than a 7700k. Its faster at a £50 cheaper price.

6 real cores trumps 4 real cores + 4 fake cores.

http://cpu.userbenchmark.com/Compare/Intel-Core-i7-7700K-vs-Intel-Core-i5-8600K/3647vs3941

In ^^ those tests the 8600k wins even on HTT friendly workloads, on non HTT friendly workloads it will decimate a 7700k.

Cannot find the page now but my 8600k is about 55% faster than a 7700k on intel's AVX bench (non HTT friendly).

Try not to get won over by the i7 branding that people seemed hooked on.

 

[TallPaul1878]

If he buys a 7700k he doesn't need a new motherboard, just update the bios and put the i7 in there. It's a significant saving over replacing the whole motherboard too.

Personally I would be holding off just a little bit longer to see if Intel really do launch the Z390 boards this year and an 8 core CPU. That would be the one I would go for.

 

[chrcoluk]

well if it has to be one of the 2 chips in the title then the i7-7800x. An 7700k isnt really an upgrade over a 6600k for mainstream use.

http://cpu.userbenchmark.com/Compare/Intel-Core-i7-7800X-vs-Intel-Core-i7-7700K/m304816vs3647

Bear in mind tho that the OP stated he is buying a motherboard anyway, so thats why I mentioned the 8600k.

Waiting for the z390? might be worth it, people so often just say wait tho as is always something better round the company. After the z390 comes, there will be something coming better after that as well. Coffeelake doesnt seem very popular here on ocuk

 

[DJPUP]

An 8600k is definitely better bang for buck than a 7700k. Its faster at a £50 cheaper price.

6 real cores trumps 4 real cores + 4 fake cores.

http://cpu.userbenchmark.com/Compare/Intel-Core-i7-7700K-vs-Intel-Core-i5-8600K/3647vs3941

In ^^ those tests the 8600k wins even on HTT friendly workloads, on non HTT friendly workloads it will decimate a 7700k.

Cannot find the page now but my 8600k is about 55% faster than a 7700k on intel's AVX bench (non HTT friendly).

Try not to get won over by the i7 branding that people seemed hooked on.

If I was to get a coffee lake prossessor, would it be worth getting an i7-8700k instead as it’s got more threads and can run slightly faster. Also would I need to buy a new motherboard as it has the same socket type as the one I have now?

 

[TallPaul1878]

If I was to get a coffee lake prossessor, would it be worth getting an i7-8700k instead as it’s got more threads and can run slightly faster. Also would I need to buy a new motherboard as it has the same socket type as the one I have now?

Yes a new board is needed. If you can afford the 8700k then go for it. Typically you can expect the extra hyperthreading to give it another 2 years of life before obsolescence.

 

[DJPUP]

Yes a new board is needed. If you can afford the 8700k then go for it. Typically you can expect the extra hyperthreading to give it another 2 years of life before obsolescence.

Alright nice one. Thanks for your help

 

[chrcoluk]

8700k, slightly larger L2 cache (debatable of performance benefit, no one seems to have ever tested).
Higher stock supported clock speeds, but generally an 8600k can at least hit the clock speeds of an 8700k when overclocked and maybe even higher due to lower temps.

Performance benefits of hyperthreading depends on workload, if you an average user who runs things like web browser, media player, email app, gaming, then little performance benefit. If you do media encoding or something of similar nature that pegs the cores to max, then will be some benefit of about 40% maximum.

e.g. now for gaming a 2600k is no less obsolescent than a 2500k for gaming.

If you got the cash spare by all means get an 8700k as you never know if in future you will have a workload that can take advantage of it, but if you dont I would get the 8600k.