AMD Ryzen 9 5900HX Outpaces Intel Core i7-10700K as it Hits 4.7 GHz

On Geekbench 5, a new benchmark (via Tum Apisak) of AMD’s Ryzen 9 5900HX (Cezanne) mobile APU has appeared. The rumoured Zen 3 component appears even to give Intel’s desktop processors a run for their money.

If you haven’t been following the Cezanne rumor mill, the next flagship for AMD‘s next-generation mobile APUs is probably the Ryzen 9 5900HX. While the mystery behind the “HX” classification has not been fully revealed, the consensus is that we are dealing with an SKU that possibly allows overclocking or comes with a more generous thermal limit. 

The Ryzen 9 5900HX shares the same configuration as the Ryzen 9 4900H, at eight cores and 16 threads. However, the Ryzen 9 5900X expected to use the new Zen 3 cores from AMD, which have proved to have a tremendous uplift in instructions per run (IPC). In addition, 16 MB of L3 cache also comes with the Ryzen 9 5900X, twice as much as the Ryzen 9 4900H. 

The previous Ryzen 9 5900X sample came in with a 3.3 GHz base clock and a 4.6 GHz boost clock. According to Geekbench 5, today’s chip has the same base clock but a significantly enhanced boost clock at 4.71 GHz. This obviously blows out of the water the previous result. 

AMD Ryzen 9 5900HX Benchmarks

It’s important to illustrate a few points before heading down the rabbit hole. The Ryzen 9 5900X score is just a single submission, so take a pinch of salt to get the results. Unfortunately, the Ryzen 9 4900H and Core i9-10980HK aren’t in Geekbench 5’s database of average ratings. Therefore, we randomly picked one of the higher results. 

On the other hand, the Core i9-10900K and Core i7-10700K scores show the average performance of the respective processors on Geekbench 5 from user submissions. 

Beginning with the most obvious comparison, the Ryzen 9 5900HX offers up to 23.7 per cent greater single-core output than the Ryzen 9 4900H. On the other hand, the multi-core performance didn’t impress as much since the Ryzen 9 5900HX was only 2.2% faster.

The Ryzen 9 5900HX also had a very powerful showing against the Core i9-10980HK, which is the fastest Comet Lake-H chip from Intel. The results showed the Ryzen 9 5900HX rising above the Core i9-10980HK by 10.9% in single-core performance and 6.8% in multi-core performance.

On a different note, AMD’s Zen 3-powered mobile chip puts up a good fight with a few Comet Lake-S processors. The Ryzen 9 5900X delivered up to 12.9% higher single-core performance than the Core i7-10700K if the findings are correct, and matched the octa-core part in multi-core performance. 

In fact, in single-core performance, the Ryzen 9 5900H exceeded the Core i9-10900K by up to 8.5%. This is very remarkable, as the Core i7-10700K and Core i9-10900K are desktop processors rated at 125W each.