Intel Core Ultra 7 255HX
Intel Core Ultra 7 255HX specifications and PassMark benchmark data: 4,549 single-core score, 47,943 multicore score, FCBGA2114 socket, 20 cores.
Compare- Class
- Laptop
- Socket
- FCBGA2114
- Base clock
- 2.4 GHz
- Turbo clock
- 5.2 GHz
- Cores
- 20
- Threads
- 20
- Performance cores
- 8
- Efficient cores
- 12
- Typical TDP
- 55 W
- Release / first seen
- Q2 2025
- L1 Instruction Cache
- 8 x 64 KB
- L1 Data Cache
- 8 x 48 KB
- L2 Cache
- 8 x 3072 KB
- L3 Cache
- 30 MB
- Eff. L1 Instruction Cache
- 12 x 64 KB
- Eff. L1 Data Cache
- 12 x 32 KB
- Eff. L2 Cache
- 3 x 4096 KB
- Description
- Intel Graphics, Intel AI Boost
- Total Cores
- 20 Cores, 20 Threads
- Performance Cores
- 8 Cores, 8 Threads, 2.4 GHz Base, 5.2 GHz Turbo
- Efficient Cores
- 12 Cores, 12 Threads, 1.8 GHz Base, 4.5 GHz Turbo
- TDP Down
- 45 W
- TDP Up
- 160 W
- Memory Support
- Max. Memory Size: 256 GB (Up to DDR5 6400 MT/s)
Understanding Intel Core Ultra 7 255HX
PassMark single-core and multicore scores describe different workloads. Compare each score with the same benchmark on another processor. A higher multicore score does not mean every application or game will run proportionally faster. Device cooling, memory and power settings also affect performance.
Will Intel Core Ultra 7 255HX work with my motherboard?
The source lists FCBGA2114 as the socket. Check the exact motherboard model and revision on its manufacturer's CPU support list, including the minimum BIOS version. A socket match alone does not establish compatibility. Include a new motherboard, memory and cooling in your budget when the platform changes.
Other names listed by the benchmark source: Intel(R) Core(TM) Ultra 7 255HX, Intel Core Ultra 7 255HX.
How our benchmarks and CPU recommendations workIntel Core Ultra 7 255HX comparisons
Head-to-head pages against processors in the same performance range.
Sources and data freshness
- Intel Core Ultra 7 255HX on PassMark CPU Benchmarks. Data retrieved .
The retrieval date records when Find Me a CPU collected the source data. It is not a benchmark test date. Prices are USD estimates from the source, converted for other currencies, rather than live retailer offers. Release / first seen means the CPU first appeared on PassMark charts, not necessarily its launch date.
Benchmark scores do not predict frame rates in a particular game. Typical TDP is a specification, not measured electricity use. A matching socket does not confirm motherboard support; check the manufacturer's CPU support list and BIOS requirements.
How our data and recommendations work