Another batch of Skylake benchmarks have leaked out a little under a month before the expected launch. This time we have the Intel i7-6700K on an ECS Z170-Claymore paired with 16GB of 2133Mhz DRR4, 128GB SSD and a GTX970. For comparison an i7-4790K on an MSI Z97A Gaming 6 with 8GB of 1600Mhz DDR3 with the same GPU and SSD. Both systems used the stock Intel heatsink with the copper core.
PCMark 8, 3DMark, Cinebench R15, and Sandra 2015 were tested with the 6700K coming first in the images with the 4790K following. As you can see Skylake trades blows with Haswell in PCMark 8, only managing to pull ahead significantly in the Home test. In the two Firestrike tests, Haswell manages to pull ahead but Skylake manages wins in Cloud Gate and Sky Diver.
Cinebench R15 shows a win for Skylake with a notable improvement in multicore efficiency. OpenGL shows a big jump due to the improved iGPU on Skylake. For Sandra 2015, the red line is Haswell and blue for Skylake. The two trade blows in the arithmetic test, but Skylake pulls ahead in multimedia, cryptography and memory bandwidth. The final two are expected given additional instruction support for cryptography and DDR4 with Skylake.
As we pretty much expected, Skylake is a minor bump in terms of IPC gains, being able to pull ahead of Haswell despite being clocked lower. One can’t forget that the extra bandwidth offered by DDR4 might be giving a boost to Skylake so those with 2133Mhz DDR3 Haswell might see fewer gains. Drivers for the motherboard are still in beta, but not too much is likely to change in that field. These benchmarks serve to confirm the general trend shown by previousleaks and the hardware looks set for a much leakedAugustlaunch.
Thank you TechBang for providing us this information
Intel’s Devil’s Canyon CPU is a product that we have already reviewed. In the run up to its release there was so much talk about bringing back the “good old days” of 5GHz overclocking on air, and all that shabang. However, as our review revealed that simply wasn’t the case. Now media outlet Digital Trends has come out and publicly attacked Intel’s newest offering stating it has let enthusiasts down once again. Digital Trends claim it is part of a longer term anti-overclocking mentality at Intel. They claim that Intel’s Lisa Graff hyped up the product and misled consumers because it doesn’t actually bring anything new. Indeed as most reviews of Devil’s Canyon now show we’ve got a CPU that overclocks more or less the same as the Core i7 4770K, runs marginally cooler but requires more volts: hardly progress, and I must say I agree.
However, the sad conclusion (as Digital Trends so rightfully note) is that there is no incentive for Intel to do better. AMD simply cannot compete and Intel has no reason to compete with itself. If enthusiasts want more then Intel wants you to spend more and choose X79 or X99 (when that arrives in September).
You can read the interesting opinion piece at the source link below.
Intel released its Devil’s Canyon CPUs at the start of this month in time for this year’s Computex event. Sadly we were delayed in getting our sample of the Core i7 4790K, which means our review has come out a little late, but nevertheless we have Intel’s new flagship on the test bench today for a good thorough review. For those of you who don’t know about Devil’s Canyon, it is Intel’s internal codename for its new Haswell Refresh K series CPUs. Devil’s Canyon includes the Core i7 4790K and Core i5 4690K, both quad core parts based on Haswell Microarchitecture but with speed bumps and a few modifications. There isn’t that much to say specifically about the Core i7 4790K that wasn’t already noted in our Core i7 4770K review, because the microarchitecture is still Haswell. However, there are a few new features that Intel is bringing to the table with Devil’s Canyon that have specifically been done to appease Intel enthusiasts and overclockers. The Core i7 4790K is unique in the regard that Intel have listened to the feedback and concerns of its user base and tried to make specific modifications to eliminate or reduce those concerns.
The first major change comes with regards to the physical characteristics of the CPU. Intel has swapped out the thermal paste under the IHS for a better quality thermal paste which should allow for lower temperatures and better overclocking as a result. Intel have also added additional capacitors to the back of the CPU which they claim smooths power delivery to the CPU die, which again should enhance overclocking potential. Another change that Intel aren’t really marketing is the addition of support for Virtualization Technology for Directed I/O (VT-d) and Transactional Synchronization Extensions New Instructions (TSX-NI)
Intel hasn’t just tweaked the physical design of the CPU either – they’ve also pushed the CPU’s performance even further. For the first time Intel is shipping a consumer processor with a 4GHz clock speed, that’s a barrier AMD broke many years ago but Intel has always been fairly cautious with its clock speeds. The CPU goes even further than 4GHz with a 4.4GHz Turbo frequency, from my experiences on a number of Z97 motherboards this basically means your CPU will always be at 4.4GHz so that’s a significant jump up from anything Intel have ever offered before. Frequency bumps aside the core count, thread count, cache size, graphics and socket all remain the same. Devil’s Canyon CPUs will price match their predecessors on paper but at retailers you can expect to see the older Core i7 4770K and Core i5 4690K slightly cheaper to the tune of $10-50. I also just want to clear up a note about backwards compatibility. Intel’s Core i7 4790K, Core i5 4690K and other Haswell Refresh CPUs will theoretically work in all 8 and 9 series LGA 1150 motherboards. Some motherboard vendors will need to issue BIOS updates to enable this support but all motherboards should get this support because the sockets still have identical pin-outs and the CPU pin-out has not changed either.
The Core i7 4790K has already surpassed the 7 GHz barrier reaching an impressive 7003.38 MHz under some exotic LN2 cooling, that’s despite the new chip being out for less than a month. The feat is similar to what we’ve already seen with the Core i7 4770K except lower volts were needed. That said a smoking hot 1.792 volts were required to bump the “Devil’s Canyon” Core i7 4790K up to the 7GHz target. The feat was achieved by ASRock’s Nick Shih and unsurprisingly he was using the new ASRock Z97 OC Formula motherboard to reach the target. The rest of the system was fairly basic with 4GB of RAM and 32 bit Windows 7.
In related news just last week John Lam achieved an impressive 7181.23MHz on the Core i7 4770K using Intel’s Extreme Tuning Utility (XTU). He was also using the ASRock Z97 OC Formula motherboard so it certainly seems as if it is a very strong board for overclocking.
After a lot of speculation and rumours the Intel Devil’s Canyon processors have finally been launched. The flagship part is the new Core i7 4790K which is Intel’s first 4GHz base clock speed processor to ever be released. The Core i7 4790K will also turbo up to an impressive 4.4GHz and has an 88W TDP.
Frequency bumps aside there are also some physical changes to the Core i7 4790K compared to the Core i7 4770K. The Core i7 4790K gets additional capacitors on the underside to smooth power delivery to the die, furthermore Intel are using a next-generation Polymer Thermal Interface Material (NGPTIM) to improve cooling efficiency, which will definitely be needed if the temperature problems we saw on Haswell are anything to go by.
There is also a Devil’s Canyon Core i5, the 4690K, and this gets a modest 0.1GHz speed bump compared to the Core i5 4670K. The speed bump brought to this CPU is much less impressive than that offered by the Intel Core i7 4790K. As far as we can tell the Core i5 4690K also gets the improved thermal interface material and additional capacitors because Intel state that applies to “New Unlocked 4th Gen Intel Core Processors” of which the Core i5 4690K definitely fits that description. Pricing is identical to the current unlocked offerings, we presume these will get price cuts in response to the new launches or that they will be gradually phased out.
Devil’s Canyon is the apparent codename for Intel’s newest unlocked K series CPUs that will probably be released on or around Computex 2014 in June according to widely circulated rumours. Devil’s Canyon is expected to include a Core i7 4790K and a Core i5 4690K both of which are supposedly based on Haswell architecture and part of “Haswell Refresh” series from which we’ve already seen a few locked CPUs released. We’ve heard from a lot of sources that there will not be backwards compatibility of Devil’s Canyon CPUs with 8 series motherboards (Z87, Z85, H87, H81, B85, Q87, Q85 etc) because of some hardware level changes in the CPU design such as the way power is delivered.However, one source reports that this is simply not the case and Devil’s Canyon will be compatible with 8 series motherboards.
The lack of compatibility is apparently just a formal thing because the specification of the TDPs do not match up between the revised LGA 1150 socket spec on 9 series and the LGA 1150 8 series socket spec. Therefore Intel is obliged to state incompatibility between 8 series and Devil’s Canyon. However, the difference is a mere 4 watts and apparently motherboard vendors are already validating Devil’s Canyon CPUs in existing 8 series motherboards to great success. Devil’s Canyon is still a fourth generation processor design so Broadwell might still be incompatible with 8 series motherboards even if Devil’s Canyon is compatible. However, this latest development does also call that rumour into question as well.