Do we think Intel is plateauing? .

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Do we think Intel is plateauing? .

posted on Oct 28, 2015 04:50PM

See this analysis between Intel's former CPU generation (Haswell) and new Generation that was just released (Sky Lake). Talk about minute changes. We all realize POET is a few years away from going hard at main CPU (desktop/notebook) market, but the big elephant is now moving at snail speeds. Moores law is DEAD with Silicon. Lifeless.

Note: this author is spinning the benefits too postively in his conclusion...1-8% perfromance increase is terrible from gen to gen. The site is likely sponsored by Intel or supported by them in some way...look at the numbers, bar charts in the article for the real story.

https://www.pugetsystems.com/labs/articles/Haswell-vs-Skylake-S-i7-4790K-vs-i7-6700K-641/

Here is the Conclusion...

Conclusion

To summarize this article, here is what we found in terms of temperature, power draw, and performance of the i7 6700K compared to the i7 4790K:

Power Draw - in most situations, the i7 6700K uses about 4-10 less watts than the i7 4790K. The main exception is if you are using the onboard graphics - in which case expect a 10-12W increase in power draw
Temperature - Depending on what you are doing, the i7 6700K should run about 4-7 ºC cooler than the i7-4790K. Even when using onboard graphics (where we saw a 10W higher system power draw) the i7 6700K was still about 3 ºC cooler than the i7 4790K.
Performance - In most cases, the performance of the i7 6700K compared to the i7 4790K was either identical or significantly better. We did have a few times that we saw a drop in performance (most noteably a 20% decrease in Linpack) but overall Skylake-S is better than Haswell.

i7 6700K vs i7 4790K Performance Summary
Unigine Heaven Pro 4.0	No change with discrete GPU, >25% faster with onboard graphics.
PCMark 8 Pro	.5-1% increase in performance.
Geekbench 3	5% increase in multi-core performance.
Cinebench R15	1% increase in CPU performance, 1.5% decrease in GPU performance.
POV-Ray	7.7% increase in performance.
Linpack	12.5% increase in performance. *Updated using Linpack 11.3
Lightroom CC 2015	1.5-2% increase in most image handling tasks, but a huge 15% increase in image export performance. ~2-3% increase in HDR/Panorama image creation performance.
Photoshop CC 2015	8.5% increase in overall performance. Varies anywhere from .8% to 16.7% depending on the effect.
Premiere Pro CC 2015	6% increase in H.264 encoding performance, marginal increase in MPEG2 encoding performance.

In most situations, the i7 6700K should be anywhere from 1% to 10% faster than the i7 4790K. We saw some of the most significant performance improvements in Lightroom and Photoshop. Most of the Lightroom actions we tested saw a small 1.5-3% increase in performance, but the 15% increase in performance when exporting images is very significant. In Photoshop, some of the effects we tested saw even greater performance improvements - up to 16.7 percent! Even better, the move to DDR4 RAM means that you do not need to use the slower (for Photoshop at least) socket 2011 CPUs if you need more than 32GB of system RAM since the Skylake-S platform supports up to 64GB of RAM.

Overall, Skylake-S as a platform is very, very good. Most of the specification changes are pretty subtle (with the exception of the move to DDR4) but we were impressed with the lower power draw and temperature of the i7 6700K compared to the i7 4790K. Unless you are a professional Photoshop or Lightroom user, the performance improvements likely won't merit upgrading from Haswell to Skylake-S, but if you are in the market for a new system we see little reason to not use Skylake-S.

Probably the worst thing about Skylake-S is that Intel only has two CPUs (the high-end unlocked i5 6600K and i7 6700K) and one chipset (Z170) available at launch. That is expected to change in the near future but if you want to be an early adopter your choices will be limited to only the high-end options.