42 PCWorld AUGUST 2019REVIEWS RYZEN^3000
whipped up a chart that shows the performance
advantage as a percentage. As you can see, the
simple math of 12 cores > 8
cores wins big time.
The worst news for Intel’s
Core i9 is once again on the left
side of the chart. There’s nothing
left here. The two are at a dead tie
up to six threads, where the
Ryzen 9 takes over.
On those low-thread-count
loads, the Ryzen 9 3900X is
every bit as fast as the Core
i9-9900K. This basically means
there are very few reasons left to
buy a Core i9 today. The reasons
left are real, but for probably 9out of 10 consumers looking at a high-end CPU,
they’ll want to buy the Ryzen 9 3900X.When you run
Cinebench
R20 using
1 thread to
24 threads,
we can see
the Ryzen 9
3900X’s real
strength as it
gives up no
quarter to the
mighty Core
i9.Core i9-9900K (8/16) vs. Ryzen 9 3900X (12/24)
Thread scaling with MCE On/PBO Off in Cinebench R20
CORE I9-9900K (8/16)
RYZEN 9 3900X (12/24)Percent performance increase
Core i9-9900K (MCE On) vs. Ryzen 9 3900X (PBO Off)The Ryzen 9 is basically dead-even with the Core i9 when loaded up
to 8 threads. After that, the 12-core chip pulls away at warp speed
from the 8-core chip.