AMD Ryzen 9 4900U is best ultrabook processor by AMD

AMD Ryzen 9 4900U review

The fight between AMD and Intel in the laptop industry is not yet over. It has been many years since we experienced such a competitive situation, where both are continually responding to the rival.

In this case and when it already seemed that everything was presented, AMD is going to spend the last ace that it had in store for the sector of low-energy notebooks. To do this, it will launch a new APU that gets the name of Ryzen 9 4900U.

It seems that AMD’s bets for this ultrabook sector are not going to be enough to defeat Intel, since Lisa Su’s are competing with two architectures at the same time, Comet Lake-U and Ice Lake-U.

As with the H series of processors, AMD left an ace up its sleeve in case Intel counterattacked, so in the U series it will choose to copy its own strategy by launching what will be the most powerful 15-watt processor so far.

The first leaks have come from Userbenchmark, where the suite again offers data that does not appear to be real. And it is that this Ryzen 9 4900U has been tested with quite low frequencies if we face it against its brother Ryzen 7 4800U.

In this case, a base clock of 1.8 GHz is set, which will be raised to 2.35 GHz in Boost, this being a very low figure, so it could be an ES perfectly. Just remember that its lower version reaches up to 4.2 GHz in its 8 cores and 16 threads.

Like this one, the new Ryzen 9 4900U will be a processor based on Zen 2 architecture and built on TSMC’s 7nm FinFET, where it will apparently share a nominal 1 5W watt TDP just like the rest of its siblings. Its cTDP seems to be set between 10 watts and 25 watts, so it has room for rise.

The rest of the features are apparently the same as those of the Ryzen 7 4800U, including those of the iGPU (8 CUs at 1750 MHz).

What Userbenchmark showed will have little to do with reality, since the scores of this new APU have been really bad: 136 points in one core, 198 points in two cores, 383 points in 4 cores and 538 points in 8 cores..

This reflects differences of between 38% and 56% compared to the average of the scores of its younger brother, where curiously only one core seems to match it by getting very close.

The first rumors place its final speed at 4.3 GHz (+100 MHz compared to the Ryzen 7 4800U), which would give it the necessary boost to be able to compete against the 4.7 GHz of the i7-10710U and to a lesser extent the 3, 9 GHz of the i7-1065G7, the first being a six core with HT and the second a Quad Core also with HT.

Therefore, the rival to beat will curiously be the CPU based on Comet Lake-U, where the difference of 400 MHz in favor of the Intel processor should be offset by the two extra cores in the AMD. For the avoidance of doubt we will have to wait for AMD to officially present it, something that does not seem to be too far away in time.