Intel Core Ultra X9 388H Flagship processor appears in New Benchmark
A huge leak has come out today, December 9, 2025, shedding light on Intel's attempts for a mobile monster in the near future. A Geekbench 6.5.0 result for the Intel Core Ultra X9 388H has been sighted in the wild, which means very soon enthusiasts would have some tangible ideas about its performance capabilities regarding the new generation, Panther Lake. Clock frequencies and a hybrid core configuration to top it all is what the listing agrees with.
Benchmark Performance Scores
The results were impressive. The test system running Windows 11 Home equipped with "High performance" for its power plan scored as follows with Intel Core Ultra X9 388H:
- Single-Core Score: 3,057
- Multi-Core Score: 17,687
Those would make the chip a very solid candidate in the high-performance mobile league to tackle workloads ranging from asset compression up to ray-tracing.
Technical Specifications Exposed
The score tape provides more than just crude numbers; the log file provides more internal chip architecture details. According to the motherboard identifier of the thing (NM14PTL), this silicon is from the Panther Lake family.
- Core Count: 16 Cores total. Topology is divided into two clusters; Cluster 1 consists of 4 cores which are likely Performance cores, and Cluster 2 consists of 12 cores which are likely Efficient cores.
- Clock speeds: The base frequency of the CPU is 4.00 GHz, whereas it can be boosted to a maximum frequency of approximately 5.08 GHz.
- Cache: The chip comes with 18 MB of L3 cache and a separate L2 cache configuration (2 x 3 MB).
- Memory: The test platform had a total capacity of 63.50 GB (64 GB) of RAM.
Under the hood
The listing identifies the processor as 'Family 6 Model 204 Stepping 2.' It runs state-of-the-art instruction sets, for example, AVX2 and AVX-VNNI, which are crucial for AI and vectorized workloads. By using 16 threads (assuming the configuration conventionally used in hybrid architectures of 4 P-cores and 12 E-cores), the multi-core score gives us an indication that there are no scaled resources.
