i7-7820X Reviews

[Taf the Ghost]

3 minutes ago, Noirgheos said:

Definitely not "upgrading" to a quad-core again, so I just hope the Coffeelake i7 is a nicely clocked hex-core.

Intel's roadmap has 6c parts on the Z370 platform.  It'll be announced in the Aug-Sep range.  Release date is "this year".  Mainstream 300 platform is late Q1'2018 or Q2 for some parts. Coffeelake has run into a lot of problems because Cannonlake got messed up.

[Noirgheos]

Just now, Taf the Ghost said:

Intel's roadmap has 6c parts on the Z370 platform.  It'll be announced in the Aug-Sep range.  Release date is "this year".  Mainstream 300 platform is late Q1'2018 or Q2 for some parts. Coffeelake has run into a lot of problems because Cannonlake got messed up.

Eh, my 6700K is enough at this point, just wish I had won the lottery...

[DXMember]

3 minutes ago, Noirgheos said:

True, but the 6800K has a much larger L3 cache, which I guess would help quite a bit with multitasking. Its weird what Intel's done.

 

3 minutes ago, PCGuy_5960 said:

Yeah the 7800X/7820X have a 4x larger L2 cache tho  This is why the L3 cache is smaller

L3$ on Broadwell/Haswell was inclusive, L2 per core now is bigger and L3 is exclusive (that's why it was cut down in size - you won't have L2 copies residing in L3), but L2 is individual per core, so if you have multiple threads using same data there is interesting tradeoff to observe, it's a design choice Intel made -  it benefits some use cases (like highly threaded, data independent workloads) while hurting other workloads (like gaming when threads jump from one core to another)

[Princess Luna]

6 minutes ago, Noirgheos said:

Definitely not "upgrading" to a quad-core again, so I just hope the Coffeelake i7 is a nicely clocked hex-core.

Nah do like me, forget Coffee Lake, 14nm is the past already, the true deal is at those sweet sweet 10nm Canon Lake mainstream 6c/12t i7... I'm certain those will be 5ghz chips with actual superior IPC to the current line up, True Gaming King CPU, the i7 7740k already looks lame... just gotta wait till next year.

[Noirgheos]

Just now, DXMember said:

 

L3$ on Broadwell/Haswell was inclusive, L2 per core now is bigger and L3 is exclusive (that's why it was cut down in size - you won't have L2 copies residing in L3), but L2 is individual per core, so if you have multiple threads using same data there is interesting tradeoff to observe, it's a design choice Intel made -  it benefits some use cases (like highly threaded, data independent workloads) while hurting other workloads (like gaming when threads jump from one core to another)

Wasn't aware they had made changes other than size to L2 and L3. Good to know, and kind of bad at the same time.

[Noirgheos]

Just now, Princess Cadence said:

Nah do like me, forget Coffee Lake, 14nm is the past already, the true deal is at those sweet sweet 10nm Canon Lake mainstream 6c/12t i7... I'm certain those will be 5ghz chips with actual superior IPC to the current line up, True Gaming King CPU, the i7 7740k already looks lame... just gotta wait till next year.

I would if I could actually get my 6700K over 4.4GHz. Its terrible knowing I have possibly one of the worst 6700Ks. I honestly don't even know why I care all that much. I spend most of my time in masm and VS, fucking around instead of playing games nowadays...

[PCGuy_5960]

1 minute ago, Noirgheos said:

I would if I could actually get my 6700K over 4.4GHz. Its terrible knowing I have possibly one of the worst 6700Ks.

You can't go higher than 4.4GHz?

[Princess Luna]

Just now, Noirgheos said:

.

Tell me about it, I do not feel restrained by my i7 7700 one bit to be honest, I just fancy the idea of being a 10nm early adopter and those Canon Lake chips are actually looking promising instead of this x299 completely mess up in my opinion.

 

Will probably stick to it, what will it be called? i7 9700k? all the way till 7nm become mainstream most likely.

[Noirgheos]

Just now, PCGuy_5960 said:

You can't go higher than 4.4GHz?

Tried until 1.35V. Would not stay stable. RAM timings were even a little loose for my tastes, still no-go.

[DXMember]

11 minutes ago, Noirgheos said:

Isn't L2 largely used for registers and the like? L3 is closer to system RAM iirc.

registers are registers, L1, L2, L3 are cache, all caches cache data from system memory, you execute instructions on registers and you fetch data/instructions from cache

[Noirgheos]

Just now, Princess Cadence said:

Tell me about it, I do not feel restrained by my i7 7700 one bit to be honest, I just fancy the idea of being a 10nm early adopter and those Canon Lake chips are actually looking promising instead of this x299 completely mess up in my opinion.

 

Will probably stick to it, what will it be called? i7 9700k? all the way till 7nm become mainstream most likely.

9700K does sound a lot cooler than 8700K. 

[PCGuy_5960]

Just now, Noirgheos said:

Tried until 1.35V. Would not stay stable. RAM timings were even a little loose for my tastes, still no-go.

Oh... That's bad..... If you want to RMA your 6700K, you'll probably get a better one from Intel

[Taf the Ghost]

5 minutes ago, Princess Cadence said:

Nah do like me, forget Coffee Lake, 14nm is the past already, the true deal is at those sweet sweet 10nm Canon Lake mainstream 6c/12t i7... I'm certain those will be 5ghz chips with actual superior IPC to the current line up, True Gaming King CPU, the i7 7740k already looks lame... just gotta wait till next year.

Icelake is the 10 nm shrink + architecture change.  Cannonlake is the actual die-shrink generation, but we aren't seeing that in anything but some mobile devices.

[Princess Luna]

Just now, Noirgheos said:

9700K does sound a lot cooler than 8700K. 

I still don't forgive Intel for losing the chance to make the 7740k actually i7 7777k that would've be priceless.

[NumLock21]

Paul's Hardware got the i5

 

 

[Morgan MLGman]

Just now, PCGuy_5960 said:

Oh... That's bad..... If you want to RMA your 6700K, you'll probably get a better one from Intel

Why would they RMA his chip? It's not like it's damaged or not running up to specs

[Noirgheos]

1 minute ago, PCGuy_5960 said:

Oh... That's bad..... If you want to RMA your 6700K, you'll probably get a better one from Intel

I'd do it, but then I'd have to do ASM on my phone. It's doable, but I'd really rather not.

[DXMember]

28 minutes ago, PCGuy_5960 said:

AFAIK, a larger L2 cache is (usually) better than a larger L3 cache.....

in some cases, when the workload doesn't share data between threads - but if it does then every thread will have to individually fetch from RAM - and if you have 20 of those threads or 36 like with 7980X and you have to fetch RAM on all of them, well... then GG

[DXMember]

13 minutes ago, Noirgheos said:

Probably just not paying attention in my engineering classes. I tend to much prefer the programming courses we do to compliment the hardware. Oh well, we'll see how the 7800X performs clock for clock to the 6800K.

I suggest - https://www.akkadia.org/drepper/cpumemory.pdf

very good read and complements high performance programming

[Noirgheos]

2 minutes ago, Princess Cadence said:

I still don't forgive Intel for losing the chance to make the 7740k actually i7 7777k that would've be priceless.

Would've confused the peasants even further. Already seen people mixing up Skylake-X.

[PCGuy_5960]

2 minutes ago, Morgan MLGman said:

Why would they RMA his chip? It's not like it's damaged or not running up to specs

Because why not? Many people have RMAed their CPUs (for no particular reason) and got golden CPUs as replacements! (Especially with Haswell-E)

[Noirgheos]

Just now, DXMember said:

I suggest - https://www.akkadia.org/drepper/cpumemory.pdf

very good read and complements high performance programming

Probably save my ass for the logic systems course. I'll give it a read tonight.

[The Benjamins]

4 minutes ago, NumLock21 said:

Paul's Hardware got the i5

 

 

that video shows how hard it will be to pick the right board, it is just a mess.

[Morgan MLGman]

1 minute ago, PCGuy_5960 said:

Because why not? Many people have RMAed their CPUs (for no particular reason) and got golden CPUs as replacements! (Especially with Haswell-E)

I'm pretty sure that they won't RMA it but it's definitely worth a try, it's not like he's gonna get a worse overclocker

[Taf the Ghost]

2 minutes ago, The Benjamins said:

that video shows how hard it will be to pick the right board, it is just a mess.

Paul can barely hide how stupid he finds the whole situation.