Intel Core Ultra 7 255HX

Benchmarks for the Intel Core Ultra 7 255HX can be found below. Release dates, price and performance comparisons are also listed when available. This is made using thousands of PerformanceTest benchmark results and is updated daily.

The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark.
The 2nd graph shows the value for money, in terms of the CPUMark per dollar.
The pricing history data shows the price for a single Processor. For multiple Processors, multiply the price shown by the number of CPUs.

Is the Intel Core Ultra 7 255HX Good for Gaming?

This is a newly released CPU that contains 20 Cores and 20 Threads. The Intel Core Ultra 7 255HX also has great single threaded performance that will serve well in games. Paired with a good videocard, is this CPU Good for Gaming? Yes, this is a high end chip that would be great for gaming. [More ...]

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Intel Core Ultra 7 255HX

Description: Intel Graphics, Intel AI Boost

Class: Laptop

Socket: FCBGA2114

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

Typical TDP: 55 W

TDP Down: 45 W

TDP Up: 160 W

Cache per CPU Package:
L1 Instruction Cache: 8 x 64 KB
L1 Data Cache: 8 x 48 KB
L2 Cache: 8 x 3072 KB
L3 Cache: 30 MB

Cache per Eff. CPU Package:
Eff. L1 Instruction Cache: 12 x 64 KB
Eff. L1 Data Cache: 12 x 32 KB
Eff. L2 Cache: 3 x 4096 KB

Memory Support: Max. Memory Size: 256 GB (Up to DDR5 6400 MT/s)

Other names: Intel(R) Core(TM) Ultra 7 255HX, Intel Core Ultra 7 255HX

CPU First Seen on Charts: Q2 2025

CPUmark/$Price: NA

Overall Rank:
256th fastest in multithreading out of 5821 CPUs
48th fastest in single threading out of 5821 CPUs
15th fastest in out of 1618 Laptop CPUs

Last Price Change: NA

Average CPU Mark rating

Multithread Rating

49131

Single Thread Rating

4591

Samples: 587*
*Margin for error: Low

CPU Test Suite Average Results for Intel Core Ultra 7 255HX

Integer Math	128,827 MOps/Sec
Floating Point Math	163,669 MOps/Sec
Find Prime Numbers	406 Million Primes/Sec
Random String Sorting	63,884 Thousand Strings/Sec
Data Encryption	40,278 MBytes/Sec
Data Compression	526,206 KBytes/Sec
Physics	3,012 Frames/Sec
Extended Instructions	42,242 Million Matrices/Sec
Single Thread	4,591 MOps/Sec

From submitted results to PerformanceTest V10 as of 15th of March 2026.

CPU Mark Distribution for Intel Core Ultra 7 255HX

Submitted Baseline Distribution Graph as of 12th of March 2026

From submitted results since PerformanceTest V10 as of 12th of March 2026.
For distribution graph only: Results are trimmed to exclude outliers by disregarding the bottom 1% and top 1% of submissions.

Search for Intel Core Ultra 7 255HX
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Machines with this CPU (or similar)

	Lenovo Legion Pro 7i – AI-Powered Gaming Laptop – Intel® Core Ultra 7 255HX – 16" WQXGA PureSight OLED Display – 240Hz – NVIDIA® GeForce RTX™ 5070 Ti – 32GB Memory – 2TB Storage – PC GamePass	$1891.82 (www.amazon.com)
	Lenovo Legion 5 Pro 5i Gen 10 Gaming Laptop (16" 2.5K OLED G-SYNC 165Hz, NVIDIA RTX 5060 8GB, Intel Core Ultra 7 255HX, 32GB DDR5 RAM, 1TB SSD), 24-Zone RGB Backlit, Wi-Fi 7, 5MP Webcam, Win 11 Home	$1699.99 (www.amazon.com)
	Lenovo Legion Pro 5i 16’’ Gaming Laptop, Intel 20-Core Ultra 7 255HX, RTX 5070, 2.5K OLED 165HZ Display, 16GB DDR5 RAM 512GB SSD, RGB Backlit, Wi-Fi 7, Win 11 Home with Mytrix Accessory	$1783.99 (www.amazon.com)
	Lenovo Legion 5 Pro 5i Gen 10 Gaming Laptop (16" 2.5K OLED G-SYNC 165Hz, NVIDIA RTX 5060, Intel Core Ultra 7 255HX, 16GB DDR5, 1TB SSD), 24-Zone RGB Backlit, Wi-Fi 7, IST Hub, 5MP Webcam, Win 11 Home	$1499.99 (www.amazon.com)
	Lenovo Legion Pro 5i 16" WQXGA OLED 165Hz AI-Powered Gaming Laptop, Intel 20-Core Ultra 7 255HX, GeForce RTX 5060 GDDR7, 16GB DDR5, 1TB SSD, RGB Backlit Keyboard, Win 11 Pro, Black, 1TB Docking	$1749.00 (www.amazon.com)

Note: PassMark Software may earn compensation for sales from links on this site through affiliate programs.

CPU Mark Relative to Top 10 Common Laptop CPUs
As of 16th of March 2026 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core Ultra 7 255HX		49,131
Intel Core i7-12700H		25,217
Apple M4 10 Core		23,685
AMD Ryzen 7 5800H		20,605
Intel Core i7-11800H @ 2.30GHz		19,737
AMD Ryzen 7 4800H		17,989
AMD Ryzen 5 5600H		16,457
Apple M2 8 Core 3500 MHz		15,642
Apple M1 8 Core 3200 MHz		14,130
Intel Core i7-9750H @ 2.60GHz		10,590
Intel Core i5-1135G7 @ 2.40GHz		9,382

CPU Value (CPU Mark / $Price )
As of 16th of March 2026 - Higher results represent better value
Processor	CPU Mark / $Price
Intel Core i7-12700H		55.18
Intel Core i7-11800H @ 2.30GHz		49.97
Intel Core i5-1135G7 @ 2.40GHz		30.36
Intel Core i7-9750H @ 2.60GHz		11.03
Intel Core Ultra 7 255HX		NA
Apple M1 8 Core 3200 MHz		NA
Apple M2 8 Core 3500 MHz		NA
Apple M4 10 Core		NA
AMD Ryzen 7 5800H		NA
AMD Ryzen 5 5600H		NA
AMD Ryzen 7 4800H		NA

Single Thread Rating
As of 16th of March 2026 - Higher results represent better performance
Processor	Average Thread Rating
Intel Core Ultra 7 255HX		4,591
Apple M4 10 Core		4,514
Apple M2 8 Core 3500 MHz		3,885
Apple M1 8 Core 3200 MHz		3,675
Intel Core i7-12700H		3,501
Intel Core i7-11800H @ 2.30GHz		3,021
AMD Ryzen 7 5800H		3,002
AMD Ryzen 5 5600H		2,884
Intel Core i5-1135G7 @ 2.40GHz		2,612
AMD Ryzen 7 4800H		2,586
Intel Core i7-9750H @ 2.60GHz		2,391

Last 5 Baselines for Intel Core Ultra 7 255HX
Most recent listed first
Baseline	CPU Mark
BL3350880 - Mar 15 2026		55790
BL3350358 - Mar 14 2026		53775
BL3349620 - Mar 14 2026		51791
BL3348473 - Mar 14 2026		36244
BL3348268 - Mar 13 2026		52145

Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.

Popular comparisons for Intel Core Ultra 7 255HX
As of 16th of March 2026 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core Ultra 7 255HX		49,131
Intel Core Ultra 9 275HX vs Intel Core Ultra 7 255HX		56,015 (+14.0%)
Intel Core Ultra 9 285HX vs Intel Core Ultra 7 255HX		57,485 (+17.0%)
Intel Core Ultra 7 265HX vs Intel Core Ultra 7 255HX		48,926 (-0.4%)
AMD Ryzen AI 7 350 vs Intel Core Ultra 7 255HX		25,001 (-49.1%)
Apple M4 Max 14 Core vs Intel Core Ultra 7 255HX		38,486 (-21.7%)
AMD Ryzen AI 9 HX 470 vs Intel Core Ultra 7 255HX		38,170 (-22.3%)
Apple M4 Pro 14 Core vs Intel Core Ultra 7 255HX		38,022 (-22.6%)
AMD Ryzen 9 9955HX vs Intel Core Ultra 7 255HX		55,856 (+13.7%)
AMD Ryzen AI Max+ 395 vs Intel Core Ultra 7 255HX		55,067 (+12.1%)
AMD Ryzen 9 8945HX vs Intel Core Ultra 7 255HX		52,239 (+6.3%)
AMD Ryzen AI Max+ Pro 395 vs Intel Core Ultra 7 255HX		51,567 (+5.0%)
AMD Ryzen 9 8940HX vs Intel Core Ultra 7 255HX		50,534 (+2.9%)

Is the Intel Core Ultra 7 255HX Good for Gaming?
As of 16th of March 2026 - Higher results represent better performance
Processor	Relative Gaming Score
AMD Ryzen 9 9955HX3D		9,792
Intel Core Ultra 9 285HX		9,351
Intel Core Ultra 9 275HX		8,986
Intel Core Ultra 5 235HX		8,891
Intel Core Ultra 7 255HX		7,907
Intel Core Ultra 7 265HX		7,893
Intel Core Ultra 7 265H		7,705
Intel Core Ultra X9 388H		7,303
AMD Ryzen 9 9850HX		7,301
Intel Core i9-14900HX		6,890
AMD Ryzen AI Max Pro 390		6,698
AMD Ryzen AI Max 390		6,666
AMD Ryzen 9 7945HX3D		6,642

CPU Benchmarks

CPU Benchmarks

Intel Core Ultra 7 255HX

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CPU Test Suite Average Results for Intel Core Ultra 7 255HX

CPU Mark Distribution for Intel Core Ultra 7 255HX

Machines with this CPU (or similar)