[Comparison] Intel Core i7-1255U vs AMD Ryzen 7 5800U – good showing from both CPUs

Currently, the only Alder Lake U-series chip that we have tested is the Core i7-1255U. And to us, the only logical thing to do is to compare it to the best available ULV-competitor that we have, the Ryzen 7 5800U.

When looking at the spec sheet, the Core i7 is ahead in the core count, but since most of its cores are Efficiency ones, the overall thread count is drastically lower. The Ryzen 7 also leads in terms of cache, which might come in handy in prolonged heavy workloads.

Today we are comparing the Intel Core i7-1255U against the AMD Ryzen 7 5800U.

You can take a look at our Top Laptop CPU Ranking, where we showcase the best and the newest laptop processors.

You can find more information about both CPUs here: Intel Core i7-1255U / AMD Ryzen 7 5800U

Specs table

Intel Core i7-1255UAMD Ryzen 7 5800U
ArchitectureAlder Lake-UZen 3
Cores / Threads10/128/16
Clock Speeds – Base/Boost1.20 – 4.70GHz1.90 – 4.40GHz
Memory type

DDR5-4800, LPDDR5-5200, DDR4-3200, LPDDR4x-4267

DDR4-3200, LPDDR4x-4267
Integrated GPUIntel Iris Xe Graphics G7 (96EU)AMD Radeon RX Vega 8 (R4000/5000, 15W)

CPU benchmarks

The Ryzen 7 is comfortably ahead in 3D Rendering, scoring 26% higher in Cinebench 20. As for Photoshop, this is where Intel showcases its strong single-thread performance, finishing the benchmark first with a lead of around 0.7 seconds.

Results are from the Cinebench R23 CPU test (the higher the score, the better)

Results are from our Photoshop benchmark test (the lower the score, the better)


While AMD is still quite ahead when it comes to 3D Rendering, Intel has caught up to them in 2D Rendering, which is a win for AMD in the ULV segment. Currently, things are looking bleak in the higher-powered segments, as the P-series from Intel are more powerful than the HS-series from AMD, and the high-end 45W Core i7s and Core i9 chips outperform anything AMD currently has in its arsenal.

All laptops with the Intel Core i7-1255U:

All laptops with the AMD Ryzen 7 5800U:

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