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

482K views 6K replies 395 participants last post by  zGunBLADEz 
#1 ·
Quote:
Actually Intel would be planning to release four six-core models, two of them get hyper-threading, two will not (Core i5 versus i7). Coffee Lake processors will be fabbed at a 14nm node and would be available on LGA1151 within months. French magazine Canard PC is basing the new information up-on reports that the first samples have been supplied to customers. The top model Core i7-8700K would get a 3.7 base clock (turbo's are not yet known). A non-K model would get a lower 3.2 GHz base clock.

Currently the release lineup looks like this:



The Core i5-8600K however would be getting a 3.6 GHz base clock and is an unlocked model. Intel supposedly also will release a Core i5 series with the Core i5-8400 would run at a base of 2.8 Ghz, and is locked. Coffee Lake should be released together with the Z370 / H370 chipsets and logic assumes a release later this year in the Q3 region. Intel 300 series desktop processor motherboard would be based on the current LGA 1151 socket, the SiSoft results already have shown Platform entries.
Source 1: https://www.techpowerup.com/235254/intel-to-launch-multiple-six-core-cpus-on-coffee-lake-architecture-i5-lineup
Source 2: http://www.guru3d.com/news-story/intel-six-core-lineup-exposed-core-i7-8700k-and-core-i5-8600k.html
Source 3: http://www.tweaktown.com/news/58453/intel-prepares-core-i7-8700k-better-fight-amd-ryzen/index.html
Source 4: https://www.overclock3d.net/news/cpu_mainboard/coffee_lake_info_leaks_-_a_six_core_i5/1
Source 5: https://www.hardocp.com/news/2017/07/17/intel_bringing_6core_cpu_skus_to_market_soon
Source 6: https://www.cpchardware.com/coffee-lake-approche/

Update to this thread, CPU-Z leak:
Quote:


Alleged screenshot of the CPU-Z utility presenting Coffee Lake 6-core processor has been leaked.

The data reveals LGA1151 socket support and TDP of 80W. The engineering sample has a base clock of 3.5 GHz with a maximum multiplier of 43. It may all just be a wrong reading by CPU-Z utility or early engineering sample which may not necessarily represent the final product. However it's yet another proof that Intel's 8th generation series will feature 6-core processor.

Earlier rumors from CPC Hardware suggested that Core i7-8700K would feature 3.7 GHz base frequency, while i5-8600 a clock of 3.6 GHz. This sample is likely a different SKU.

The original source was already taken down.
Source 7: https://videocardz.com/newz/intel-coffee-lake-core-6-core-cpu-z-screenshot-leaks-out

And Another Update on Frequency / Turbo :
Quote:


So for the details, the first processor is the Core i7-8700K. This chip has 6 cores and 12 threads. The chip is clocked at a base frequency of 3.7 GHz and has a minimum core frequency set at 0.8 GHz which is for idle mode. The chip features a boost clock of 4.3 GHz on a single core, 4.2 GHz in dual core mode while quad and hexa core boost clocks are rated at 4.0 GHz which is impressive. The CPU has a BCLK frequency of 100 MHz which is expected from Intel CPUs. The chip features an unlocked multiplier as suggested by the "IA (Intel Architecture) Overclock Capable" panel.

The chip has dual channel memory support with native speeds of 2400 MHz. There's a total of 12 MB of smart cache on the processor, referring to the total L3 cache. The chip will be shipping with Intel's GT2 level graphics core with a minimum clock speed of 350 MHz. The interesting thing is that the chip packs a 95W TDP and is compatible with the LGA 1151 socket which means that Intel may allow Coffee Lake support on 200-series and even 100-series motherboards although there will be a new chipset known as Z390 launching alongside the chips.

The other two processors are very interesting too. There's another 95W chip that features clock speeds of 3.2 GHz base, 3.6 GHz (single core / dual core) boost and 3.4 GHz (quad core and hexa core) boost. This chip also supports overclocking but the clock speeds are rather lower for it to be a Core i5 K-Series chip. The other is a 65W part so we can take a guess that this is a T-Series, low TDP chip that comes with clock speeds of 3.1 GHz base but higher boost speeds of 4.2 GHz (single core), 4.1 GHz (dual core) and 3.9 GHz (quad and hexa core) boost clocks. Remaining specifications of the chips are rather similar.
Source 8: http://wccftech.com/intel-coffee-lake-core-i7-8700k-6-core-cpu-specifications-details-leak/
Quote:
Originally Posted by skafo View Post

Another leak about Turbos

Code:

Code:
6C/12T
12MB L3
3.7 GHz Base
4.3 GHz 6-core Turbo
4.4 GHz 4-core Turbo
4.6 GHz 2-core Turbo
4.7 GHz 1-core Turbo
95W TDP
It's from Sweeper/Sweepr, nothing substantial behind it but his leaks turned out to be accurate often before.
Source 9:

https://hardforum.com/threads/coffee-lake-lga-1151-6c-12t-launching-in-august-several-k-models-planned.1930226/page-16#post-1043127762

Update to this thread 4.7GHz confirmed:
Quote:




Intel will be clocking the Core i7-8700K at up to 4.7GHz on maximum single-core CPU clocks, while it'll hit 4.6GHz on dual-core, 4.4GHz on quad-core, and 4.3GHz on hexa-core. It'll support dual-channel DDR4, feature a 95W TDP, and integrated graphics.

The new 8700K will be joined by the 8700, with slightly lowered CPU clocks of 4.6/4.5/4.3/4.3GHz for single/dual/quad/hexa-core CPU clocks, respectively
Source 10: http://www.tweaktown.com/news/58697/intel-core-i7-8700k-detailed-6c-12t-up-4-3ghz/index.html

Update again:
Quote:


Intel Core i7-8700K smiles for camera

The first pictures allegedly showing upcoming 6-core 8700K processor have also emerged today at Baidu. We are looking at 2 different processors (the one on the right is different than the first two).

Along with the photo, CPU-Z benchmark result was also published showing 2323 single-thread performance and 13980 multi-thread performance. This is better than i7-7700K by 4443 points, but no confirmation was posted that we are in fact looking at 8700K benchmark (could be anything really).
Source 11: https://videocardz.com/71740/intel-core-i7-8700k-pictured-i3-8350-and-i3-8100-specs-leaked
Quote:
Intel claims i7-8700K to be 11% faster than 7700K





Intel is hosting a training for retailers in China for upcoming Coffeelake 8th Gen Core series. According to the leaked slide, the upcoming i7-8700K CPU will be 11% faster than 7700K in single threaded operations.

The slide also confirms that for the first time Intel will introduce quad-core i3 series and six-core i5 series.

Both Core i5 and i7 series are to use 6-core configuration, although the i5 will not support Hyperthreading.

The leaked specs seem to align with previous rumors. The i7-8700K is the flagship Coffeelake CPU with six cores and twelve threads.
Source 12: https://videocardz.com/72112/intel-claims-i7-8700k-to-be-11-faster-than-7700k
Quote:






Here are the first pictures of the retail boxes of 8th generation Intel Core i5 and Core i7 processor which will be launched on 22 August; with Core i3 following on much later in the year, or even early-2018. The boxes confirm several things about these chips, beginning with the fact that their integrated graphics cores will be branded "Intel UHD Graphics 6xx," and that they will require motherboards based on Intel 300-series chipset, even though their socket is "LGA1151."

There doesn't appear to be a socket key difference between these processors and "Kaby Lake," so it's possible that while 300-series chipset motherboards support older "Kaby Lake" and "Skylake" processors, "Coffee Lake" will only work on 300-series chipset, and not older 200-series or 100-series.
Source 13: https://www.techpowerup.com/236313/intel-8th-gen-core-i5-and-core-i7-retail-boxes-pictured
Quote:


Intel today announced its 8th generation Core processor family, with new mainstream desktop (MSDT) processor SKUs. The company is stressing on these chips featuring "40% more performance over the previous-generation," even though the "Coffee Lake" micro-architecture is essentially based on the "Skylake" and "Kaby Lake" architectures. The company is arriving at 40% by across the board increases in core-counts. Quad-core Core i5 and Core i7 SKUs now have 6 cores as opposed to 4 (a 33% multi-threaded performance increase straight off the bat), and the remaining 7% from higher clocks or micro-architecture level incremental updates; while Core i3 now includes quad-core SKUs.
Source 14: https://www.techpowerup.com/236324/intel-stresses-on-40-more-performance-for-8th-generation-core-family

Intel Core i7-8700K Benchmarks Show a 6 Core CPU Blazing Past AMD's 8 Core Ryzen 7 1700 and Intel's 6 Core HEDT Core i7-7800X CPU:
Quote:
Source 15: http://wccftech.com/intel-core-i7-8700k-cpu-benchmarks-leak-faster-than-8-core-ryzen/

Another Update:
Quote:
Core i7-8700K benchmarks leak: 51% faster than 7700K



In multi-threaded performance the new Coffee Lake-based 8700K and its 6C/12T of CPU grunt pushes it to be 51% faster. HotHardware posted some comparison scores between the aggregated Core i7-7700K and the new 8700K:

  • Processor Arithmetic: 217.98 GOPS (versus 149.99 GOPS)-45 percent increase
  • Processor Multi-Media: 658.57 Mpix/s (versus 447.76 Mpix/s)-47 percent increase
  • Processor Cryptography: 10.47 GB/s (versus 9.34 GB/s)-12 percent increase
  • Scientific Analysis (Single Precision): 61.41 GFLOPS (versus 48.51 GFLOPS)-26 percent increase
  • Scientific Analysis (Double Precision): 32.11 GFLOPS (versus 24.40 GFLOPS)-32 percent increase
Source 16: http://www.tweaktown.com/news/58912/core-i7-8700k-benchmarks-leak-51-faster-7700k/index.html

Quick little update:
Quote:
Intel Core "Coffee Lake" Desktop Processors Launch Date Revealed

Intel could launch the first wave of 8th generation Core "Coffee Lake" desktop processors in the retail channel, on the 5th of October, 2017. It's also becoming ominous that with increasing core counts across the lineup, Intel is also raising prices by anywhere between 12.5 to 25 percent. For example, the Core i7-8700K, which logically succeeds the $339 Core i7-7700K, could be priced upwards of $400. The i5-8600K, which succeeds the $249 i5-7600K, could be priced a little over $300. One can expect similar price-hikes across the board for other Core i5 six-core and Core i3 quad-core SKUs.

The first wave of 8th generation Core "Coffee Lake" desktop processor launches could be limited to certain overclocker-specific Core i7 and Core i5 SKUs. It is also launching just one compatible motherboard chipset option with this first wave, the Z370 Express, which supports CPU overclocking. Among the SKUs to look out for, are the top-dog Core i7-8700K six-core processor with HyperThreading enabling 12 threads, 12 MB of L3 cache; and the Core i5-8600K, which is also a six-core part but lacks HyperThreading, and comes with 9 MB of L3 cache.
Source 17: https://www.techpowerup.com/236863/intel-core-coffee-lake-desktop-processors-launch-date-revealed
Source 18: https://www.kitguru.net/components/cpu/damien-cox/intel-coffee-lake-processors-expected-in-early-october/
Quote:
Source 19: https://www.pcauthority.com.au/news/retailer-confirms-october-5-date-for-6-core-coffee-lake-processors-472901
Quote:
Quote:
Originally Posted by Menta View Post





The European prices of the upcoming Coffee Lake processors have surfaced for the entire range of products, in this news item an overview. Of course Canadian prices already had been listed, but in the EU the pricing model differs quite a bit due to taxes and exchange rates. Looking at the differences we see that Coffee Lake will be a bit more expensive compared to the current Core i5 and i7 lines. The Core i7 8700K with six-cores and one thread will cost €389,- the 8600K with six cores and threads €273. Below an overview of prices, cores and frequencies. The prices listed will differ here and there a bit basically due to differences of VAT per country.
Source 20: http://www.guru3d.com/news-story/european-core-i7-8700k-coffee-lake-prices-spotted-in-germany.html

Nice little update:
Quote:
Intel Core i7 8700K Reportedly Reaches 4.8 GHz Easily, 5 GHz+ Requires Delid

A report out of Expreview says that users should expect Intel's 8700K 6-core processor to easily clock up to 4.8 GHz with conventional cooling methods. Apparently, the chip doesn't even need that much voltage to achieve this feat either; however, thermal constraints are quickly hit when pushing Intel's latest (upcoming) leader for the mainstream desktop parts. Expreview says that due to the much increased temperatures, users who want to eke out the most performance from their CPU purchase will likely have to try and resort to delidding of their 8700K. While that likely wouldn't have been necessary with Intel's 7700K processors, remember that here we have two extra CPU cores drawing power and producing waste heat, so it makes sense that thermals will be a bigger problem.
Source 21: https://www.techpowerup.com/237258/intel-core-i7-8700k-reportedly-reaches-4-8-ghz-easily-5-ghz-requires-delid
Source 22: https://www.hardocp.com/news/2017/09/23/intel_core_i7_8700k_reportedly_reaches_48_ghz_easily_5_requires_delid

Release Dates and Official Slides:
Quote:
Originally Posted by kd5151 View Post


Quote:
Source 23: https://videocardz.com/press-release/intel-announces-8th-gen-intel-core-processors-family-for-desktop
Source 24: https://www.pcper.com/news/Processors/Intel-Announces-8th-Gen-Core-Architecture-Coffee-Lake?utm_source=dlvr.it&utm_medium=twitter

More Benchmarks:
Quote:
Source 24: https://www.eteknix.com/full-intel-i7-8700k-cpu-review-leaks-out-ahead-of-launch/
Quote:
Source 25: http://diy.pconline.com.cn/1001/10017885.html

Another Core i7-8700K & i5-8600K review posted ahead of launch:
Quote:
Source 26: https://videocardz.com/73061/yet-another-core-i7-8700k-i5-8600k-review-posted-ahead-of-launch

Here's the video review round-up:
Quote:
Z370 Motherboard Reviews:

Quote:
Multicore Enhancement:

Quote:
Written review round-up:
Quote:
  1. http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/76162-intel-coffee-lake-i7-8700k-i5-8400-review.html
  2. https://www.kitguru.net/components/leo-waldock/intel-core-i7-8700k-and-core-i5-8400-with-z370-aorus-gaming-7/
  3. https://www.gamersnexus.net/hwreviews/3076-intel-i7-8700k-review-vs-ryzen-streaming-gaming-overclocking
  4. https://www.pcper.com/reviews/Processors/Coffee-Lake-Story-Intel-Core-i7-8700K-and-Core-i5-8400-Review
  5. https://www.anandtech.com/show/11859/the-anandtech-coffee-lake-review-8700k-and-8400-initial-numbers
  6. https://www.hardocp.com/article/2017/10/05/intel_coffee_lake_core_i58600k_vs_7600k_at_5ghz_review
  7. https://www.tweaktown.com/reviews/8363/intel-core-i7-8700k-i5-8400-coffee-lake-cpu-review/index.html
  8. https://hothardware.com/reviews/intel-core-i7-8700k-and-core-i5-8400-coffee-lake-processor-review
  9. http://www.legitreviews.com/intel-core-i7-8700k-core-i5-8400-processor-review-coffee-lake_198473
  10. http://www.tomshardware.com/reviews/intel-coffee-lake-i7-8700k-cpu,5252.html#xtor=RSS-100
  11. https://hexus.net/tech/reviews/cpu/110336-intel-core-i7-8700k-core-i5-8400-14nm-coffee-lake/
  12. http://www.eurogamer.net/articles/digitalfoundry-2017-intel-coffee-lake-core-i7-8700k-review
  13. https://www.overclock3d.net/reviews/cpu_mainboard/intel_coffee_lake_i7_8700k_review/1
  14. https://www.guru3d.com/articles-pages/intel-core-i7-8700k-processor-review,1.html
  15. https://arstechnica.co.uk/gadgets/2017/10/intel-coffee-lake-8700k-review/
  16. https://techreport.com/review/32642/intel-core-i7-8700k-cpu-reviewed
  17. https://www.techpowerup.com/reviews/Intel/Core_i7_8700K/
  18. https://www.techspot.com/review/1497-intel-core-i7-8700k/
More Reviews:

https://videocardz.com/73089/intel-8th-gen-core-coffee-lake-s-review-roundup
 
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#4 ·
so if their i5s are 6C/6T, does that mean their i3s will finally become 4C/8T?
then theres pentium chips that could possibly be 4C/4T chips.
thumb.gif
 
#7 ·
Quote:
Originally Posted by Nautilus View Post

Part of me wishes for Z170 compatibility.
it is intel, it will be like socket 775 situation or AMD AM3 vs AM3+ = older CPU are compatible to new chipset, while new cpu are not for old chipset.

btw, unlike X299 that caught pants down by threadripper. These chips is most likely a planned release, Intel probably has this chip ready for Zen. (since Zen has been make known to feature 8 core long long time ago, so I guess Intel has planned this chip to complete against it)
 
#8 ·
Well, the locked chips are likely dead on arrival (competition with Ryzen), the 6c 6t unlocked chip I don't see who would want to get that when there are other options, and the 6c12t is going to be fighting against the LGA 2066 hex and Ryzen 5 at the same time.
 
#9 ·
There's a gap in that lineup where the i5-8500 should be. Based on past patterns, it will probably be something like 6c/6t @ 3.2GHz base clock with a 95w TDP.

In my mind, there's only 3 processors worth buying in the mainstream Core series for each generation: The i7-K and i5-K for overclockers, and the i5-x5xx (e.g. 4570, 6500, 7500) for non-overclockers. The 2 OC chips are obvious, and the x5xx non-OC chip is the best balance of clock speed and price for those who aren't overclocking.

An H-series mobo + i5-x5xx really is the best and most cost-effective set-and-forget Intel solution available for those building systems for their less-technical friends. Just slap one together with a pre-overclocked GPU from your preferred vendor (e.g. an EVGA "SSC" model) and off you go. No need to worry if Skippy will know how to adjust the settings or anything then.
 
#12 ·
Thanks AMD.
 
#15 ·
Quote:
the 6c 6t unlocked chip I don't see who would want to get that when there are other options
It'd be the 2500k of coffee lake, such cpu's have been extremely popular in the past
Quote:
and the 6c12t is going to be fighting against the LGA 2066 hex and Ryzen 5 at the same time.
Ryzen 5 isn't much competition when the MT perf is trading blows w/ ryzen 7 8c16t and ST perf is way ahead of everything ryzen
 
#16 ·
Need it to be able to hit 4.5GHz + all core for the 6 thread parts unless there's a double digit improvement in IPC over Kaby Lake.

i5-8600K or i7-8700k could be worthwhile purchases if there's overclocking headroom. ~ +11% like Kaby Lake would not be impressive (4.5GHz -- 5GHz is ~ 11%).

The locked i5-8400 is likely dead on arrival since 2.8GHz is a really low locked base clock.

Incredibly happy for x299 users that were planning on getting a i7-7800X though.

I believe as far as pricing goes it'll likely be $350 for the i7s and $250 for the i5s , so it comes down to motherboard cost.

edit: sisoft sandra scores for discussion

http://ranker.sisoftware.net/show_run.php?q=c2ffcee889e8d5e3dbecdfe6d4f280bd8dabceab96a680f3cef6&l=en (6C 3.5GHz, 6x 256kB L2, 9MB L3)
http://ranker.sisoftware.net/show_system.php?q=cea598ab9aaa9dad9abcdbe6cbfadcae93a385ecd1e0c6ae93a680f8c5f4d2b7d2efdff98ab78f&l=en
http://ranker.sisoftware.net/show_run.php?q=c2ffcee889e8d5e3daeddcead8fe8cb181a7c2a79aaa8cffc2fa&l=en (6C 12T 3.59GHz, 3.3GHz IMC, 6x 256kB L2, 12MB L3)

and geekbench from earlier
http://techreport.com/news/32157/rumor-six-core-coffee-lake-cpu-pops-up-in-geekbench , https://hothardware.com/news/intel-coffee-lake-6-core-cpu-multi-core-performance-leaked-geekbench

6 core, 12 thread 3.2GHz "Kaby Lake" = 4619 single core and 20828 multi core
 
#18 ·
Quote:
Originally Posted by Clocknut View Post

it is intel, it will be like socket 775 situation or AMD AM3 vs AM3+ = older CPU are compatible to new chipset, while new cpu are not for old chipset.

btw, unlike X299 that caught pants down by threadripper. These chips is most likely a planned release, Intel probably has this chip ready for Zen. (since Zen has been make known to feature 8 core long long time ago, so I guess Intel has planned this chip to complete against it)
Actually, most rumours out yesterday suggest it is compatible with Z270 and some Z170 chipsets.
 
#19 ·
4 / 6 * 95W is approximately 64W ( 63.3333 )

A Xeon E3-1280 V5 ( A top binned Skylake ) runs at 3.7ghz using 80W. A lower binned 14nm++ quad core can run at 3.7ghz using only 64W.

A Xeon equivalent of the E3-1280 should clock a little higher with the same voltage at 64 TDP. 3.9ghz 64W 4C/8T Xeon?
 
#22 ·
Quote:
Originally Posted by EniGma1987 View Post

Wonder if Intel will go "well, we increased the cores by 50% so we also need to increase price", or if they will finally bring the price back down to $320 for the top model due to competition. Tired of this $420 nonesense.
Price is very important. If this is higher than current 7700K there is no reason to give Intel money.
 
#23 ·
Quote:
Need it to be able to hit 4.5GHz + all core for the 6 thread parts unless there's a double digit improvement in IPC over Kaby Lake.
4.5ghz all core would be extremely low given that kaby averages 5.0 and intel's 14nm is continually being improved in iterations; the last one saw a +300mhz gain from Skylake to Kaby.
 
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