SiSoftware Sandra
We are now testing in the popular SiSoftware Sandra 2021 version. We are testing the CPU arithmetic section. In this graph above we are looking at Dhrystone integer performance in multi-threading. In terms of multi-threaded integer performance, we surprisingly see the Intel Core i9-10900K on top, despite the Ryzen 9 5900X having more cores. It is possible special CPU instructions are being used in this test that Intel supports, speeding up the process. This is also probably why the i9-11900K is so far ahead of the AMD Ryzen 7 5800X as well.
This test really puts the Intel CPUs in a good light with whatever instructions are being accessed. Still, the Ryzen 9 5900X is well ahead of the i9-11900K just by its sheer number of cores and threads versus the new i9-11900K. Instructions cannot make up for the loss of cores on the new i9-11900K.
In this graph, we are now looking at the Whetstone floating-point performance in multi-threading. Now we kind of see the tables reverse. It appears the AMD CPUs are much better at floating-point performance. The Ryzen 9 5900X just takes off and superior to everyone.
The new Intel Core i9-11900K is on the bottom here, even with Adaptive Boost enabled. The Ryzen 7 5800X seems to be on par with the i9-11900K with Adaptive Boost enabled. However, with Adaptive Boost disabled the 5800X is 7% faster. The i9-10900K with its higher core count beats the new i9-11900K quite readily here.
Now we are looking at Dhrystone integer performance again, but this time on a single-thread. When we look at the single-thread performance, even though it’s integer, the Intel CPUs fall behind here. The Ryzen 7 5800X and 5900X pull ahead.
The same is true in the Whetstone floating-point test in single-thread. The 5800X and 5900X are slightly faster while the Intel chips fall behind.