The first benchmarks of AMD’s Ryzen 7 7840HS “Phoenix” CPU, designed for mainstream laptops, have leaked and show a significant improvement over its predecessor. We recently saw the first benchmarks of AMD’s Ryzen 9 7940HS “Phoenix” CPU, and now we have our first look at Phoenix Ryzen 7 CPUs.
The Ryzen 7 7840HS CPU tested here is the brand new Zen 4 core architecture. The chip has eight cores and sixteen threads, which is the maximum number of cores for Phoenix CPUs. The chip also has 8 MB of L2 cache and 16 MB of L3 cache, so aside from the architectural changes, the overall core configuration hasn’t changed much.
AMD’s Ryzen 7045 Dragon Range processors have up to 16 cores and 32 threads, as well as plenty of cache. The Ryzen 7 7840HS CPU has slightly lower clock speeds than the 7940HS, with a base clock of 3.8 GHz and a boost clock of 5.1 GHz. The CPU has the same 35-54W TDP design as the other Phoenix components. The integrated GPU is an AMD Radeon 780M chip with 12 compute units and a 2.9 GHz clock that is based on the RDNA 3 architecture.
The chip’s performance was evaluated using the Cinebench R23 benchmark. It is critical to understand what laptop was used here, as well as the memory configuration and thermal/power limits on the specific platform. However, leaker Golden Pig Upgrade over at Bilibili has provided no information in this regard, so the final CPU performance you receive will be entirely dependent on the specific laptop you purchase.
In Cinebench R23, the AMD Ryzen 7 7840HS CPU scored 16854 points in multi-core tests and around 1800 points in single-core tests.
Because the single-core frequency is incorrectly listed, the single-core score will be greater than the Multiplier ratio suggested by the benchmark. In multi-core performance, the CPU is 25% faster than its predecessor, the Ryzen 7 6800H, and 15% faster than the fastest Rembrandt chip, the Ryzen 9 6980HX. The CPU also performs well against Intel’s previous generation Core i7 parts and should outperform or be competitive with Intel’s 13th Generation Core i5 CPU offerings.
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