In preparing for the AP27 Oktoberfest Challenge some of you may be wondering "How many more points can I get by running my CPU also?" I did some testing and here are the results.
Core i7 7700k Kaby Lake 4 core
completes 4 workunits in about 47000 seconds
equivalent to 1 workunit done every 11750 seconds
Core i7 3770k Ivy Bridge 4 core
completes 4 workunits in about 62000 seconds
equivalent to 1 workunit done every 15500 seconds
Ok, now let's compare these CPUs to a 5+ year old Maxwell generation Nvidia GTX 750ti. Not exactly a high end GPU, but very power efficient when released.
It completes a workunit in 6800 seconds.
So, as you see the lowly 750ti is more than twice as fast as the Ivy Bridge CPU and still much faster than even the Kaby Lake!
Newer GPUs such as RTX 2080 Ti can be over 20 times faster than the Kaby Lake and the fastest current GPU, a Tesla V100 is over 45 times faster!