Review: Skylake Intel Core and Core i5-6600k i7-6700k

Review: Skylake Intel Core and Core i5-6600k i7-6700k -
Review: Skylake Intel Core and Core i5-6600k i7-6700k -

Launches of Intel desktop processors are still somewhat confused in recent months. First with the delay of the introduction of Broadwell and now with the arrival of the first elements of soda or tock of architecture in the form of the first K processors and refresher for veterans Haswell.

These new processors do not cease to be a revamped and improved version of Broadwell architecture, which can already buy some models, with the same 14nm manufacturing process, improved graphics, and higher thermal efficiency. These new K alone will come from far, the remainder of the landing Skylake no date but should be on the market before the end of the year.



Currently only K series

This first wave of Skylake processors comes only two models aimed at gamers and overclockers. All Skylake range as Intel itself, will have more freedom in overclocking but the K series will continue to shine as to this aspect.

These new processors will not only freed the multiplier, which is the basis for easy overclocking, but will have completely liberated the BCLK bus (no steps such as 125 or 166MHz closed), now we establish in 1MHz steps freely. It also gives more freedom to overclocking memory, in addition to introducing the DDR4 memory as header for these higher-end models. More bandwidth capacity and increasing the frequency overclocking memory.

The memory also receives more potential across less bulky frequency adjustments. The DDR3 Intel i7-4790K had jumps of 200 / 266MHz and now will jump i7-6700k memory bus 100 / 133MHz allowing us a more optimal and detailed operating frequency of the memory setting.

The bus remains dual channel uneventful, but certified frequencies pass of 1866 to 2133MHz and we can find reports reaching DDR4 4000MHz frequency. Speeds at which we will not see any of DDR3 memory kit.

Both the Core and the Core i7-6700k i5-6600k use a new socket. The LGA1151 is fully compatible with previous motherboards with older processors. Your DDR4 bus leaves no option but these processors can theoretically well control DDR3 memory. To avoid confusion between product models Intel has made this decision. Decision that includes some of the most powerful chipsets that have entered the brand in the domestic market.

Both models consume 91W, including a graphic Intel HD Graphics 530 eighth generation, and both have 16 lines PCI Express 3.0. The Core i5-6600k have the usual four processing cores, without Hyperthreading, with 2 channels of DDR4-2133 memory. Its working frequencies are 3.5 and 3.9GHz frequency based turbo frequency. It has 6MB third level cache.

The Core i7-6700k be the star of this new range, at least for now, with its base frequency and 4GHz to 4.2GHz turbo mode. Its four cores do have Hyperthreading so we will have 8 threads process. Your cache also increased to 8MB of cache third level. Where there is no improvement in graphics, PCI Express bus lines or memory.

The Core i5-6600k cost about 250 Euros and model Core i7-6700k chances are that easily reach 380 Euros, including taxes. We must add that require a new type of memory that low price quickly but is more expensive than DDR3, as new motherboards.

More power, overclocking else?

The new architecture of these processors add “per se” some power on the Haswell architecture but the truth is that no large improvements per clock cycle. They may only be around 10%. In theory these processors should offer more overclocking but it seems that Intel has used the same system they transfer heat to the IHS in the Haswell which undoubtedly limited its potential unless we decide to remove the IHS and polish Encapsulated surface.

Other improvements will find them, as we shall see later, in the graphics card but I doubt that many users seek to play this range with its integrated graphics processor chips, in other models, intended more to improve integration itself is interesting.

We were able to test two new Skylake units. Core i5-6600k, ES version (engineer simple), and a commercial version of Core i7-6700k . The results of the latter are much more promising. In the short time we had to try it, just two days, and conventional cooling that we used, we get stability at 4.8GHz and a voltage of 1.34v .

The Core i5-6600k was rather more modest with stable results, acceptable voltages of 4.4GHz.Hyperthreading without having the results should be better so we blame it certainly it is a non-commercial version. Easily I think these processors can work on average about 4600-4800MHz at moderate voltages and conventional refrigeration, although quality.

Temperatures remain online 60 degrees, with about 25 degree weather, and very quiet fan in a block of conventional dissipation. I think it’s an excellent result for a processor at this frequency. Yet we can see how the delta is growing rapidly which indicates that no materials used as electric welding to connect with IHS encapsulated processor.

Intel Z170. Major improvements

For me the great improvement of this architecture comes from the hand of the chipset and not the processor, at least in these high-end models for overclocking. In a food processor of this type only three things matter: overclock ability, processing power per cycle and connective capacity.

None of these three pillars has great improvements in Skylake architecture . 5-10% more power here, overclocking does not have such a marked improvement and the connective capacity remains stuck at 16 lines PCI Express 3.0 that should the spread between processor graphics and other elements. This detracted from the Z77, the Z87, the Z97, but not ballasted to Z170.

The new Intel chipset is probably the best we have in the market over the X99 platform 2011-v3. This new chipset provides support for Thunderbolt 3.0 , a new method of Intel RAID can also use M.2 board connectors and, best of all, a stunning 20 lines PCI Express 3.0 that will change our concept of plate platform base midrange Intel.

Previous generations, including the Z97, were only 8 lines PCI Express 2.0. The Z170 not only has more lines, 12 more, but these have twice the bandwidth. PCI Express 3.0 Each line can be divided into two lines PCI Express 2.0 which gives us a total of 40 lines for storage, add-on cards, or more graphics cards. Frees the processor load a very important and will allow us to enjoy even better trained drivers, powerful and complex storage systems and next generation connectivity motherboards.

Thanks to the Z170 will be easier to mount M.2 Ultra RAID connectors or have two or more graphics to its full potential. 

The new RAID mode will allow us to bios level, create RAID disk systems such as Samsung Intel 951 or 750 can reach speeds of 4000MB / s with powers to process over 400,000 IOPS in 4K random. Just awesome, give life to a new generation of high-performance PC with excellence in graphics, sound, storage, external connectivity, etc.

The only downside is that we no native support for USB 3.1, but with this connective capacity, all or almost all motherboards we see him appear with this chipset include even with type C connectors capable of high power loads to power other devices or charge your mobile phone or tablet in record time.

The new Intel HD Graphics 530

The truth is that in this type of processor do not think anyone is interested much how they or stop going integrated graphics, you will usually disable the BIOS to prevent consumption and unnecessary heating of the processor but, in any event, are integrated. Although actually it does have utility as Intel’s QuickSync technology is really efficient for those engaged in the media and more specifically to the creation of audiovisual content.

Both K series processors Skylake mount an Intel HD Graphics 530 eighth generation. It is a graphicalcompatible with DirectX 12 and with 48 shaders engines . It is around 30% more powerful than the generations of integrated graphics in Haswell and the truth is that in our tests provides interesting results.

We were able to run on Windows 10 test 3DMark DirectX 12 integrated and also some other tests. I was pleasantly surprised how well it moves my dear play Diablo 3. I always use reference guide to integrated graphics capabilities for those who spend their time playing not as modern games. The results are good, even at 1920×1080, with good quality and always above 30 FPS is more than enough for games of this kind.

The connectivity of these charts has also improved with support for HDMI 2.0 and DisplayPort 1.2 . These charts support 4K screens and up to three simultaneous displays. They are perfect for highly integrated systems but probably makes the most sense when we see other oriented systems other processors.

4k video moving with very low CPU.

These charts offer support DirectX 12. 

Gameplay video to 1920×1080 Diablo 3 points integrated in the new Skylake “K” graphics. 


Some performance tests

We have done some comparative tests with these new processors. The components used for the event are as follows. As you can see we have used a new high-performance Klevv memories of which I speak quietly in the coming days. Get exceptional levels of performance and are only the tip of the iceberg of the frequencies we see in DDR4 over the months.

Testing machine.

Processor:  Intel Core and Intel Core i5-6600k i7-6700k

Cooling:  Noctua NH-D15S – Review on track

Motherboard: Asus Z170 Deluxe

Memory: 16GB DDR4 3000MHz Klevv CRAS – Review on track

Storage:  M6E Plextor 240GB PCI Express M.2

Case:  103 Banchetto

Supply:  Seasonic Platinum Series 1050w Snow Slient

SiSoft Sandra 2014 Arithmetic. GOPs

SiSoft Sandra 2014 Multimedia. MPixel / s

SiSoft Sandra 2014 Bandwidth RAM. GB / s.

Cinebench R15 1xCPU

Cinebench R15 SMP

X. Handbrake (Less is better in seconds)

The improvement compared to megahertz is fairly light, almost nonexistent, but the processor seems to have something more overclocking potential. Adding that a much more capable chipset will, in general, users of powerful teams, players and overclockers see this new generation favorably.


We clearly find it more satisfying experience with the Core i7-6700k with its 4.8GHz overclocking without excessively high voltages, but I think our experience with the 6600K preset is only circumstantial. I think and am convinced, it will be an issue even more overclocking capability.

Ahead of us are many plates to try, more time to devote to these processors, and explore other methods of overclocking that allow us to take advantage of more features of the chipset, the new memory bus, etc.This platform will bring excellent motherboards, in various price ranges, and formats of all types and sizes.We expect exciting weeks.

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