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[Various] 6-Core Coffee Lake Lineup: i7-8700K & i5-8600K / Official Reviews & Benchmarks (Update 19) - Page 83

post #821 of 5920
Quote:
Originally Posted by guttheslayer View Post

I still strongly advise you not to recommend 7700K and misled ppl into buying them at this point of time as it is, from a monetary POV, just not worth it. An I5 CPU from 8th gen will definitely crushed the 7700K, so it is definitely not even the standard of I5.


I would rather they try to get a 2nd-hand 6700K from ebay/amazon and use it first. Though if u can wait, just wait, it is not that long.
Did I anywhere recommend a 7700K?

Here's an official statement on the 7700K: don't buy it; wait for an 8700K, or go used like you recommend. The 7700K was never really worth buying if you could get a 6700K for cheaper.

However, no 8th gen i3 is going to match it; they can be considered current gen i5s, not current gen i7s. Even that fake benchmark shows the 7700K winning by 33% in multithread. It's not in the same performance tier. SMT/HT is not a trivial difference.

I also don't think that it's going to be crushed by an i5. It should be about equal across a lot of use cases. The i5 probably will be faster on average, but it's going to be close.
Edited by Pyrotagonist - 8/27/17 at 10:34pm
post #822 of 5920
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post #823 of 5920
Quote:
Originally Posted by guttheslayer View Post


So far I see its single core 4.5GHz boost from the same site, so I am thinking it is the same IPC.


I was wondering the definition of IPC and Intel marketing for 11% improvement in IPC. I know it means Instruction Per-Clock, but could it be applied to context outside single core, it could be comparing multicore threading performance at the same clock?


If the communication and latency between the cores are improved, does that considered as an IPC improvement.

Where did Intel claim 11% higher IPC?

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post #824 of 5920
Quote:
Originally Posted by Pyrotagonist View Post

Did I anywhere recommend a 7700K?

Here's an official statement on the 7700K: don't buy it; wait for an 8700K, or go used like you recommend. The 7700K was never really worth buying if you could get a 6700K for cheaper.

However, no 8th gen i3 is going to match it; they can be considered current gen i5s, not current gen i7s. Even that fake benchmark shows the 7700K winning by 33% in multithread. It's not in the same performance tier. SMT/HT is not a trivial difference.

I also don't think that it's going to be crushed by an i5. It should be about equal across a lot of use cases. The i5 probably will be faster on average, but it's going to be close.

There are some inconsistencies here. First, that fake benchmark is not that fake. The 33% underscore in MT is roughly what a current i5 is capable of, and the Coffee Lake i3 will be just like any current i5 with the advantage of being unlocked and with higher clocks IIRC. So what you say it is not true. The i3 will be very competitive for the price, especially if they release later on a premium version with HT, which would be basically a current i7-7700K.

And second, 6/6 will be better than 4/8 no doubt about it, so the Coffee Lake i5 will be better than an i7-7700K if it clocks to 5Ghz as well. Even if it loses some 200mhz to the 7700K, in general the two extra cores will be more valuable. I might be wrong on this one, but even it the i5 loses some frames to the 7700K, I would still prefer the six cores for a more smooth gaming experience.

Oh, and yes, to buy an i7-7700K at this point is to shoot your own foot. The leaked benchmarks are showing the i7-8700K as a little beast.
Edited by Contiusa - 8/28/17 at 12:38am
post #825 of 5920
I'm getting the 8700k asap and will just give my 7700k+motherboard to my brother. his i5 3570k is showing its age thumb.gif
post #826 of 5920
We have had 6 core processors since what feels like forever, what is needed are 8 to 10 core CPUs without completely dumped frequencies.

Also, first time that I come across a modern CPU with only 1 thread per core instead of 2 threads.
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post #827 of 5920
Quote:
Originally Posted by Darkwizzie View Post

Where did Intel claim 11% higher IPC?

https://videocardz.com/72112/intel-claims-i7-8700k-to-be-11-faster-than-7700k

Right here. Granted IPC never appears, but this is where that 11% number seems to have come from. They also apparently claimed a 51% multithread improvement.

the 11% number appears to be completely false judging by the early benches. If anything single thread IPC might be lower. And there are 50% more cores/threads, so unless their multithreaded number was talking about number of cores and not any objective measure of the performance...
Edited by azanimefan - 8/28/17 at 8:50am
 
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post #828 of 5920
So... When can we buy Coffee Lake CPUs?
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post #829 of 5920
Quote:
Originally Posted by Cyph3r View Post

So... When can we buy Coffee Lake CPUs?

September
post #830 of 5920
Quote:
Originally Posted by Majin SSJ Eric View Post

Of course not. Just because something new comes out does not mean that the current hardware its replacing gets slower. The 7700K will be a fantastic CPU for years to come (I still consider my ancient 2600K to be a decently powerful CPU even today).
knowing coffee lake is just few months ago and knowing intel rendered useless all the compatibility seems like a waste of money when coffee lake could be slighly higher priced than a 7700k while having 50% higher core count and a longer lifespan of compatibility
Quote:
Originally Posted by guttheslayer View Post

I am sure there will be a 4C 8T Processor and I can forsee it will rival 7700K.

As the 6 cores are taking up the moniker of I7 and I5. That quad core CPU will be a I3, hence a 7700K will be considered as a I3 as well. Whatever it is, it is not a good time to get a 7700K unless CFL is schedule for next year release.

well from the rumours there is no space for 4c-4t since the 8350k is 4c-4t unless intel decides to make a 8370k(sounds similar to the FX CPU) and probably the people wouldnt buy the 8350k and it would be really close in price unless intel changed their pricing and puts 6c/6t for nearly 300usd the 4c/8t for 200-240 and the 4c-4t for 150-170
Edited by PontiacGTX - 8/28/17 at 10:01am
  
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Overclock.net › Forums › Industry News › Hardware News › [Various] 6-Core Coffee Lake Lineup: i7-8700K & i5-8600K / Official Reviews & Benchmarks (Update 19)