Intel Atom C3950 + Tyan Tempest S3227
As I unfortunately don't have any other Denverton systems at this time and it's been a few years since last testing any other Atom products, for this comparison I ran some Linux performance tests against several different Xeon systems for reference. These other systems for reference purposes included the Xeon E3-1235L v5, Xeon E3-1245 v5, Xeon E3-1280 v5, and the Xeon Silver 4108. All systems were tested with Ubuntu 17.10 x86_64 with GCC 7.2.0 and the Linux 4.15 kernel.
Compared to the old Atom days when there wasn't much to the CPU line-up, it's quite a different story with Denverton.
The Atom C3950 was competing with -- and many instances outperforming -- Skylake-era Xeon desktop CPUs that have much higher TDPs.