Peace of mind, I7-4790k vs I7-5820k

[sqitso]

This topic isn't really about performance. It's more or less just asking for opinions. So here's the deal. I upgraded from an I5-4670k that was such an awesome chip. Overclocked at 4.5 and never complained on air cooling. The 4670K was a great chip and I was very happy with it, but there came I time I needed to upgrade. So I upgraded to an I7-4790K. It was an easy transition. Upgraded bios.. popped in the chip and boot back up. Now right off the bat I had some problems. Very high temps.. throttle downs during prime. All sorts of stuff. Very frustrated but pushed on and found out that FMA3 and AVX stuff in the latest Prime95 where causing the overheating. I disabled those features and Prime 95 ran 24 hours with no problem. So I was never comfortable that I had a processor that wouldn't burn in because it would lock up unless I cripped Prime or used an older version without the FMA3 and AVX stuff. Then after a lot of resources many people where talking about they can only overclock on air with expensive Noctua coolers or watercooling.

So long story short. Not really happy with my 4790K on air.. but I was thinking on spending money for a water cooling kit to get it's temps down so I don't have to cripple prime 95 and have a chip that works right.

HOWEVER... I was also liking the looks of the i7-5820K. Yes I know it takes DDR4 and a different mothrboard.. plus for overclocking watercooling is recommended.

This leaves me with a conundrum. In terms of longevity which would be best? Spend 100 bucks on watercooling and get my i7-4790k under control.. or spend 800 bucks upgrading to a i7-5820k which I can overclock to the same speed as my 4790K? Yes I do game and other things.. but the speeds would be almost the same. Is the extra 2 cores worth an 8X price tag for the upgrade?

Lastly.. Is the i7-5820k platform gonna be short lived anyway? I keep hearing that a new line of processor is gonna come out soon with better pci lanes and stuff.

 

[LTC8K6]

What cooler is on the 4790K?

 

[jpiniero]

I think you have to answer first why you think the 4670K@4.5 is inadequate first.

 

[LTC8K6]

Skylake is not far off.

I'd wait...

 

[CHADBOGA]

I think you have to answer first why you think the 4670K@4.5 is inadequate first.

This

 

[Dave3000]

You should stick with the 4790k. It's the better gaming CPU at the moment. Are you willing to drop from 4 GHz to 3.3 GHz for 50% more cores which most games don't use more than 4 cores? As for overclocking a 5820k close to the speeds of a 4790k stock with stability, that's the luck of the draw, and you might end up getting one that won't overclock past 3.6 GHz. Enjoy the fast stock speeds of the 4790k, if using stock cooler buy a better cooler. Also you might have all cores running at 4.4 GHz when you are running Prime which is not stock and some motherboards have a feature that overclocks all cores to the highest official turbo multiplier of the CPU. Make sure that the cores are running at 4.2 GHz during running Prime.

 

[escrow4]

You should stick with the 4790k. It's the better gaming CPU at the moment. Are you willing to drop from 4 GHz to 3.3 GHz for 50% more cores which most games don't use more than 4 cores? As for overclocking a 5820k close to the speeds of a 4790k stock with stability, that's the luck of the draw, and you might end up getting one that won't overclock past 3.6 GHz. Enjoy the fast stock speeds of the 4790k, if using stock cooler buy a better cooler. Also you might have all cores running at 4.4 GHz when you are running Prime which is not stock and some motherboards have a feature that overclocks all cores to the highest official turbo multiplier of the CPU. Make sure that the cores are running at 4.2 GHz during running Prime.

Any half decent X99 mobo will enable MCE so its 3.6GHz all cores, and in single player gaming 3.6GHz vs 4.4GHz doesn't matter. Minimums may be lower but both CPUs will adequately drive any single GPU unless you want 120FPS. 60FPS is certainly achievable. Look at GameGPU, hexa-cores are among the top in Inquisition, Unity, and V (at stock), similar with Techspot. Writing is on the wall. I'd sacrifice clock speed for more cores. You also shouldn't use Prime at all anymore with Haswell. Use Realbench from Asus and some programs you use frequently.

 

[Dave3000]

3.6 GHz MCE might be want some 5820k's can only achieve. I read from some users that have got theirs to 4.3 GHz, some users in the user reviews said they can't get 4 GHz from their 5820k. It's all the luck of the draw and risky. FSX prefers highly clocked dual cores for performance more than lowly clocked hex cores. A 4 GHz quad core Haswell would beat a 3.3 GHz hex core Haswell in this game. Sure you can overclock a 5820k to close the performance gap but again their are risks involved in doing that and it might not be stable.

 

[Shehriazad]

Screw the 5K series....6K is literally around the corner and is very likely to bring an actual performance bump that is worth it.

So either cool the crap out of your 4K...or wait for the 6K. 5K just seems pointless right now... I've seen people actually lose the chip lottery, being unable to OC the 5Ks high enough and end up with something that is essentially the same speed or slower than the 4Ks :/

 

[scannall]

Screw the 5K series....6K is literally around the corner and is very likely to bring an actual performance bump that is worth it.

So either cool the crap out of your 4K...or wait for the 6K. 5K just seems pointless right now... I've seen people actually lose the chip lottery, being unable to OC the 5Ks high enough and end up with something that is essentially the same speed or slower than the 4Ks :/

What this guy said. Sounds like you need to take off your fan, clean the thermal paste off and reapply it. A little goes a long ways, and too much is a problem.

Impatience will just cost you money with Skylake just around the corner.

 

[BHZ-GTR]

Hi

You buy processor Haswell-e Like( Corei7 5820K)

You can run games at least three generations , Only upgrade your graphics card

 

[RaistlinZ]

What do your actually use your computer for? If it just runs hit in Prime, then just stop running Prime. If it runs cool for actual work and games that's all that really matters.