• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

i7-5820k Questions

DrYip

DrYip

DrYip

Associate
Joined
14 Oct 2017
Posts
24
Alright so I recently looked into overclocking and managed to OC my i7-5820k to 4.6 Ghz @ 1.31 vcore.
Questions:
1. Intel XTU Bsod at 1.31v when I bench it but during real world usage (gaming etc) everything works fine. Is it ok to leave it at 1.31v or do I need to stress test my cpu until i find a voltage that doesnt bsod under such stress test?

2. Is it true 1.4v is the maximum for safe 24/7 oc voltage if temps are below 85C sustained while mitigating cpu degradation? Would i be safe to try perhaps 4.7ghz at 1.4v?

3. What exactly is processor cache ratio and is it worth OC it along with my 2400 mhz ddr4 ram? Does OC benefit both real world performance in any way?

4. Is my chip OC to 4.6 ghz similar in performance to the newly released i7-8700k? Is it worth upgrading my setup now?

Thanks in advance.
 
If its game stable then leave the voltage where is it however you might be able to lower the volts by increasing input voltage , i suggest 1.9v as a good starting point.

No one really knows what the max safe voltage is, however when you need a big bump in volts to reach the next multiplier then you've reached the limit of that chip.

Don't bother with cache ratio overclocking, outside of benchmarks it yields no benefits and can degrade gaming performance. You'll get much better performance overclocking the memory and timings.

A 5820k at 4.6 is more than capable of mixing it with the latest chips and certainly not worth upgrading yet unless you need umpteen cores.
 
I left the cpu input voltage to auto and it fluctuates around 1.904-1.92v. What would be the upper limit? 1.95v?

As for overclocking the ram, doesn't it affect the bclk along with the overclock on the cpu? My ram is currently at 2400 mhz. Timing (15-15-15-35-1.2v)
 
Ok, a 5820k at 4.6 is a far reach, only a handful of chips will go that far, all 8700k's will clock to 4.7, a similar far reach for a 8700k is 5.2, so it isn't really comparable is it? Alternatively drop the score for the 5820 to 4.2g and see the difference then?

The 14nm 2017 chip is going to be faster 2014 22nm, not sure what you are trying to say.
 
DrYip said:
i7-8700k @ 4.7 ghz = 1558 cb
i7-8700k @ 4.3 ghz = 1400 cb
i7-5820k @ 4.6 ghz = 1330 cb

worth it?
Click to expand...

Nope, not for me. Coffee is a little faster, Z370 is bit of a mess. The only maybe worth it upgrade is a 12 core Ryzen and even then it's a lot of money.
 
Personally i wouldn't upgrade until at least Ice Lake, higher IPC and probably 8 cores on mainstream. You'll get a boost going for the 8700k yeah but i don't think it's worth it.

If you're gaming at 1080p then maybe, if higher then not much point.

I don't think I'd switch from a 6 core to another 6 core unless it was quite a big difference.
 
I'd say wait for 10nm Intel chips, the current gen isn't really worth upgrading from Haswell-E for most people. Ryzen probably wouldn't be worth the bother either, and if you needed it you wouldn't be asking us.
 
As it's a system swap not just a CPU upgrade then most would say no in general use. If you want to benchmark to the nth degree or squeeze out the last FPS on a given GPU/Game then yes. Down to cost and hassle really but that's up to you.

I'm happy to stick to my 5820K and just bought another one 2nd hand for less than £200 to go in an X99 system built for considerally less than a new 8700/370 based system.
 
You must log in or register to reply here.
Back
Top Bottom