Intel Core Ultra 7 255HX

Basic information:
Released	2025
Segment	Mobile
Socket	BGA2114
Number of cores	20 (8 big + 12 little)
Number of threads	20
Base frequency	1800 MHz
Turbo Boost	5200 MHz
Unlocked multiplier	no
Architecture (core)	Arrow Lake
Lithography	3 nm
TDP	55 W
Max. temperature	105° C
Products webpage	follow >

Internal memory
L1 Cache, Кb	8x48 + 8x64 \| 12x32 + 12x64
L2 Cache, Кb	8x2048 \| 12x2048 \| 2048
L3 Cache, Кb	30720

Integrated modules
iGPU	Intel Graphics 300 - 1850 MHz
Memory controller	2-channel (DDR5-6400)
PCIe controller	PCI Express 5.0 (28 lines)
Other modules	• NPU • SATA controller • USB controller

Instructions, technology
• MMX • SSE • SSE2 • SSE3 • SSSE3 • SSE4 (SSE4.1 + SSE4.2) • AES (Advanced Encryption Standard inst.) • AVX (Advanced Vector Extensions) • AVX 2.0 (Advanced Vector Extensions 2.0) • AVX 512 (Advanced Vector Extensions 512) • BMI1, BMI2 (Bit Manipulation inst.)	• F16C (16-bit Floating-Point conversion) • FMA3 (3-operand Fused Multiply-Add inst.) • EM64T (Intel 64) • NX (XD, Execute disable bit) • VT-x (Virtualization technology) • VT-d (Virtualization for directed I/O) • Turbo Boost • TXT (Trusted Execution tech.) • MPX (Memory Protection Extensions) • Enhanced SpeedStep tech.

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