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IMHO, if it's just flight simming - no. Go with the 7700. For other things that are more HT aware and take full advantage of multicores - then yes, there would be a benefit.

One of the big issues with the 8700 is heat. Add to that th extra heat when clocking with HT - seems like a lot of extra work and $$ for not  that much gain, if any.

Vic

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I upgraded from i7-6700K and 1080gtx to i9-7900 and two titan 1080 12gb in sli, massive difference (massive bloody price also lol)

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2 hours ago, jim375 said:

I upgraded from i7-6700K and 1080gtx to i9-7900 and two titan 1080 12gb in sli, massive difference (massive bloody price also lol)

whats the rub on the new 1070ti cards ?

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5 hours ago, jim375 said:

I upgraded from i7-6700K and 1080gtx to i9-7900 and two titan 1080 12gb in sli, massive difference (massive bloody price also lol)

Very interesting, because I am considering the same system as yours, could you kindly elaborate on the "massive" difference? On the P3D forum yesterday, I read exactly the opposite report with an i9 7980 XE stating that multi-core had no benefit on P3D, so your feedback would be terribly helpful! Thanks for your time.

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1 hour ago, Bernard Ducret said:

Very interesting, because I am considering the same system as yours, could you kindly elaborate on the "massive" difference? On the P3D forum yesterday, I read exactly the opposite report with an i9 7980 XE stating that multi-core had no benefit on P3D, so your feedback would be terribly helpful! Thanks for your time.

seems that it has, 7700k has 4cores performance vise with HT ON as a 5core CPU 8600k 6cores or 8700k  6cores +HT enabled like a  "7.5core" , the cheap 8600k would perform better then the 7700k.

CPU ( speed IPC ) is king then cores.

have tested 5.2ghz 7700k vs I9 7920X , the 7920X 12 cores sligtly better IPC more  cash can run it with H115 4.9ghz with better cooling +5ghz 

my toughts no price/performance, its time to retire the 7700k finnaly INTEL have better HEDT cpus then mainstream.

 

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The problem is benchmarks vs real application. Benching the 8700,7700,7920 will give specific results but, as many have found out through the years, the benchmarks do not necessarily translate into the flight sim world.

Flight sims (P3d, FX,XP) are a unique beast. They make demands on the cpu/memory/gpu that other applications do not. All the extra bells and whistles and new tech on the new processors may be great but if the application doesn't make use of them, there is no real gain. Sort of like driving a Ferrari on a GoKart track - you cannot utilize it's strengths.

Vic

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51 minutes ago, vgbaron said:

The problem is benchmarks vs real application. Benching the 8700,7700,7920 will give specific results but, as many have found out through the years, the benchmarks do not necessarily translate into the flight sim world.

Flight sims (P3d, FX,XP) are a unique beast. They make demands on the cpu/memory/gpu that other applications do not. All the extra bells and whistles and new tech on the new processors may be great but if the application doesn't make use of them, there is no real gain. Sort of like driving a Ferrari on a GoKart track - you cannot utilize it's strengths.

Vic

I have a Z270 +5ghz 7700k that i use with P3DV4.1 

In this case i agree with Rob ,I9 series ar beasts try it you understand what i mean 

 

P3D V4.1 test I9 7920X 5ghz

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45 minutes ago, westman said:

In this case i agree with Rob ,I9 series ar beasts try it you understand what i mean 

In your screenshot it looks like P3D is using all 14 cores almost 100%. Is that your correct? If so, it looks like the P3D upgrades that Lockheed Martin are providing to spread the sim load to multi-cores is indeed working.

The big question! With the same video card do you experience an improvement simming with the 7920x vs. 7700k?

Appreciate all the feedback you provide from your testing on these forums Westman,

Ted

 

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Yes it run 12cores close to 100% i run HT Off,

In same test same GPU same settings the 7700K at 5.1 ghz  it get small pause or Stutter both with HT on or OFF

the 7920x smooth as silk , 

if i set unlimited the fps fluktation ar much bigger on the 7700K max fps is almost identic.

One thing that i noted is the IPC 5ghz on the 7920X is identical to 5.1 on the 7700k

to run 4K with decent setting you need atleast 4.7ghz on the I9 series or 4.8 I7

if the I9 stops at 4.5ghz i prefer a 5ghz 7700k.

if a can run the I9 more then 4.6 ghz its that one i prefer even if the 7700k do 5.4ghz

 

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I didn't realize that cores 6 and 7 were disabled.

Thanks Westman. So the extra cores do help with P3Dv4.

....the expense of this hobby is accelerating. :ohmy:

The

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