https://www.overclock3d.net/news/cpu_mainboard/leak_suggests_huge_performance_leap_for_amd_s_zen_5_ryzen_8000_series_cpus/1
 
AMD's Zen 5 CPUs are expected to deliver huge single-threaded and multi-threaded performance gains over Zen 4
AMD are preparing to launch their next-generation Zen 5 processors in 2024, replacing their Ryzen 7000 series with newer Ryzen 8000 series models. According to Red Gaming Tech, AMD will not be increasing their CPU core counts their Ryzen 8000 series, with the company's generational performance leaps coming from architectural changes and not increased core/thread counts. 
 
If this leaked information is true, AMD are hoping to deliver significant single-threaded performance gains with Zen 5, gains that will translate to both single-threaded and multi-threaded performance boosts. These performance gains will reportedly come from architectural changes, not clock speed gains, as AMD does not expect their Zen 5 processors to clock much higher than their Zen 4 counterparts.
 
In his latest video, Red Gaming Tech has released Cinebench R23 scores for Zen 5 engineering samples, which have been rounded to the nearest 1,000 points to help hide the source of these leaked scores. These scores are significantly higher than the scores that are achievable by AMD's Ryzen 7000 series processor, and the scores of retail Ryzen 8000 series hardware could be higher, as these results were reportedly achieved on early silicon. 
 
Single-threaded Cinebench R23 scores for Zen 5 are said to be in the mid-high 2000s. Today's high-end Ryzen 7000 series processors can achieve single-threaded scores in this benchmark of close to 2,100 points, suggesting that AMD has achieved single-threaded performance gains of over 25% in Cinebench R23 with their Ryzen 8000 series processors. 
In terms of multi-threaded performance, AMD's Ryzen 9 7950X can achieve scores of around 39,000 points in Cinebench R23, making a score of around 49,000 points for a 16-core Zen 4 processor around 25% faster. These are strong performance gains for AMD, though it remains unclear if these performance gain will translate well to other workloads.
Red Gaming Tech has stated that his sources have claimed that the move from Zen 4 to Zen 5 will be "a bigger improvement than Zen 2 to 3", which is a big claim given how large the performance leap offered by Zen 3 was. 
 
Leaked Zen 5 Cinebench R23 Scores (Rounded to the nearest 1,000 points)
- 16-core - 49,000 points
- 12-core - 36,000 points
- 8-core - 23,000 points
- 6-core - 17,000 points
- Single-Thread results are in the mid-high 2,000s
 
That is a great improvement for an engineering sample.