Intel Core i5 8259U 's Advantages
Integrated graphics card
Higher base frequency (2.3GHz vs 0.7GHz)
Intel Core Ultra 5 134U 's Advantages
Released 5 years and 8 months late
Higher specification of memory (6400 vs 2400)
Larger memory bandwidth (102.4GB/s vs 37.5GB/s)
Newer PCIe version (4 vs 3.0)
Larger L3 cache size (12MB vs 6MB)
More modern manufacturing process (7nm vs 14nm)
Lower TDP (9W vs 28W)