Key Takeaways
1. The Intel Core i7 13645HX is a budget-friendly processor offering similar performance to the Core i7 13650HX, with 14 cores (6 performance and 8 efficiency cores).
2. The maximum clock speed for performance cores is 4.9 GHz, while the efficiency cores have a reduced boost clock of 3.5 GHz.
3. Integrated graphics have improved significantly, with the 13645HX featuring 32 execution units (EUs) compared to 16 EUs in the 13650HX, though performance remains modest.
4. The new CPU supports faster DDR5-5600 memory, increasing maximum memory bandwidth to 89.6 GB/s, enhancing overall capabilities, especially for integrated graphics.
5. Both the Core i7 13645HX and 13650HX perform similarly in multithreaded applications and compete well against newer CPUs like the Intel Core Ultra X9 388H “Panther Lake.”
Intel has recently introduced a new laptop CPU aimed at budget-friendly mid-range laptops, named the Core i7 13645HX. This processor is part of the Raptor Lake family and offers nearly the same performance capabilities as the Core i7 13650HX.
Specifications and Performance
The design remains unchanged, featuring a configuration of 14 cores, which includes six high-performance cores and eight high-efficiency cores. The maximum clock speed for the performance cores remains at a peak turbo frequency of 4.9 GHz. However, the boost clock for the efficiency cores has been decreased by 100 MHz, now maxing out at 3.5 GHz. The CPU retains a smart cache of 24 MB, along with a peak thermal design power (TDP) of 157 watts.
Graphics Upgrade
In terms of integrated graphics, there’s a significant enhancement. While the 13650HX comes with an Intel UHD iGPU that has 16 execution units (EUs), the 13645HX upgrades this to a robust 32 EUs. Nevertheless, the performance of this entry-level integrated graphics unit will still be fairly modest.
Memory and Bandwidth
The new CPU also supports DDR5-5600 memory, an improvement over the DDR5-4800 support of the 13650HX. This naturally leads to increased maximum memory bandwidth, which has risen to 89.6 GB/s from 76.8 GB/s. This upgrade is expected to positively impact the iGPU’s performance, leading to better overall capabilities. However, it’s likely that most laptops featuring this chip will come with discrete GPUs, making the iGPU improvements less significant for many users.
Multithreading and Competition
When it comes to multithread performance, both the Core i7 13645HX and the 13650HX should perform similarly. The latter competes well against the 25-watt Intel Core Ultra X9 388H “Panther Lake” in multicore tests, which is notable given that the i7 is approaching three years old now.
Gamers looking for laptops equipped with more advanced CPUs can explore the Core Ultra 7-powered Legion 5i available on Lenovo.com, which is now offered at a 22% discount for a limited time.
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