I went on to compare CPU limited benchmarks from other websites and found a nice CPU limited game selection on another French IT website, hardware.fr (their Broadwell-E review).
http://www.hardware.fr/articles/946-6/performances-jeux-3d.html
Let us see how much faster is 6700K vs 8350 in hardware.fr review :
6700K scored 149.5 pts
FX8350 scored 90.3 pts.
Difference between the two is 1.65 or
65%.
Now results from CanardPC’s Ryzen preview:
6700K scored 118.2%
FX8370 scored 73.6%.
FX8370 is 4.3Ghz max boost Vs 4.2Ghz max boost which is around 2.3% difference.
6700K is 1.60 or
60% faster than FX8370 which fits perfectly in line with hardware.fr’s result of being 65% faster than FX8350 in CPU limited games. When one accounts for slight clock difference and a bit of different game mix you end up at 3% point difference in results between 2 reviews.
Now, from the same hardware.fr review we have FX 9590 vs FX 8350 results in game benchmark suite.
As can be seen from hardware.fr’s
FX 9590 review , Turbo clock makes no difference in games they tested, results are basically the same. In FX 9590 review this chip is 12.5% faster than 8350, while due to different game selection in 6900K review, the difference is 9%. As can be seen, even on the FX series the performance jumped with clockspeed significantly, not 1:1 but clearly at least 70-80% of what was expected.
Conclusion : Ryzen clocking via Turbo boost to ~3.8Ghz (for example) will likely raise the CPU limited scores by solid 8% making it almost 4790K level (in this chart it should score 129pts Vs 6900K’s 132pts and 149pts for 6700K). On top of that comes manual OCing which should negate some of the advantage of higher out of the box clock of 4C/8T intel parts like 4790K and 6700K.
On to the productivity benchmarks comparison between CanardPC’s preview and hardware.fr.
From the same
6900K review on hardware.fr we have this kind of difference between 6700K and 8350 in prod. benchmarks:
6700K scored 181.1 pts
FX8350 scored 138.3 pts
According to this review
6700K is 1.31x or 31% faster than FX8350 in these kind of workloads.
Compare with CanardPC’s article:
6700K scored 137.3%
FX83
70 scored 105.2%.
According to CanardPC
, 6700K is 1.3x or 30% faster than FX8370 (which in turn is a percentage point or two faster than FX8350 as we can see perfectly demonstrated on hardware.fr).
Conclusion: If AMD ships Ryzen with just 10% better clocks (3.4Ghz base/3.6Ghz all core Turbo/3.8Ghz ST Turbo), this sort of Ryzen SKU should score around 245pts on hardware.fr
performance scale. That is right in between 5960x and 6900K , 3.2% faster than 5960x and 4.2% slower than 6900K.
So we have a perfect match in results, in both games and productivity between two French websites.
Scaling the Ryzen to likely release clockspeeds (3.4Ghz base + Turbo) we get something of ~4-5% lower than 6900K productivity performance and 2-3% lower than 6900K gaming performance. Stock vs stock.