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Intel Core Ultra 7 255HX

IntelLaptop CPU

Core Ultra 7 255HX

Released March 2025.1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026ARK lists Launch Date Q1'25. See the other sources for the family timing. Last checked 14 October 2026.

Cores
20
Max boost clock
5.2GHz
L3 cache
30MB
Socket or package
BGA2114

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General

Series
Core Ultra 200HX3Press releaseintel.com/content/www/us/en/newsroom/news/2025-ces-client-computing-news.htmlRead 14 October 2026Intel calls the family the Core Ultra 200HX series.
Model numbers
AC8076806324, AC80768067E42Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/ordering.htmlRead 14 October 2026Ordering codes AC8076806324 (spec code Q5X3) and AC80768067E4 (spec code SRVFG), both Tray, stepping B0. ARK lists no boxed product and no recommended customer price.
GTIN / EAN
Not available
Announced
6 January 20253Press releaseintel.com/content/www/us/en/newsroom/news/2025-ces-client-computing-news.htmlRead 14 October 2026Intel newsroom release dated 6 January 2025 (CES, Las Vegas) introduces the Core Ultra 200HX and H series mobile processors. It does not name the 255HX and gives no price.
Status
Available1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Marketing Status: Launched. Launch Date: Q1'25. Vertical Segment: Mobile.
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
Not available
Segment
Laptop1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Vertical Segment row reads Mobile.
Instruction set
x86-641Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Instruction Set: 64-bit. Instruction Set Extensions lists Intel SSE4.1, SSE4.2 and AVX2, which are x86 extensions.
Codename
Arrow Lake1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Code Name row reads Products formerly Arrow Lake.
CPU process (as published)
TSMC N3B1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026CPU Lithography row: TSMC N3B.
CPU process node
3nm1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026TSMC N3B is stored as 3 nm, as on the other Arrow Lake products. Intel prints no nm figure.
AVX-512
No1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Instruction Set Extensions lists Intel SSE4.1, SSE4.2 and AVX2 only.

Cores and clocks

Core configuration
Core typeCountCoreBase clock (GHz)Max clock (GHz)
Performance8Lion Cove2.45.2
Efficiency12Skymont1.84.5
Source1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026# of Performance-cores 8 with base 2.4 GHz and Max Turbo 5.2 GHz. # of Efficient-cores 12 with base 1.8 GHz and Max Turbo 4.5 GHz. Low-power Efficient-cores 0. Core names are not on ARK and come from the Tom's Hardware launch article.4Press articletomshardware.com/pc-components/cpus/intel-launches-arrow-lake-mobile-family-with-core-ultra-200hx-and-200h-processorsRead 14 October 2026Tom's Hardware, 6 January 2025: the 200HX chips use the Lion Cove P-core and Skymont E-core microarchitectures. Its table lists the 255HX with 20 cores (8+12), a 5.2 GHz P-core turbo, 30 MB cache and 55 W base and 160 W turbo power. The table's E-core column reads 1.85 GHz, which is ARK's graphics frequency, so it is not used for the E-cores.
Cores
20
Cores labelled performance
8
Cores labelled efficiency
12
Threads
201Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Total Threads 20. Intel Hyper-Threading Technology: No.
Max boost clock
5.2GHz1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Max Turbo Frequency 5.2 GHz, the same as the Performance-core Max Turbo Frequency.
Unlocked for overclocking
Not available

Cache

L2 cache
36MB1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Total L2 Cache 36 MB.
L3 cache
30MB1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 202630 MB Intel Smart Cache.
AMD 3D V-Cache
No1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026AMD technology. ARK lists only the 30 MB Smart Cache and no stacked cache.

Power and thermals

Base power (TDP)
55W1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Processor Base Power 55 W.
Max turbo power
160W1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Maximum Turbo Power 160 W.
Configurable power range
Minimum45W1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Minimum Assured Power 45 W. ARK has no Maximum Assured Power value, so max_w is left out.
Max operating temperature
105°C1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Max Operating Temperature 105 C. ARK prints no row named TJ Max for this chip.

Memory

Memory support
Memory typeModule typeMax speed (MT/s)
DDR5SO-DIMM6,400
Source1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Memory Types: Up to DDR5 6400 MT/s. ARK names no module type, so the SODIMM form comes from Wccftech's report of Intel's briefing. ARK gives no rank or DIMM-per-channel detail, so the row has no config.6Press articlewccftech.com/intel-core-ultra-200hx-core-ultra-200h-arrow-lake-cpus-debut-high-end-gaming-premium-laptops/ampRead 14 October 2026Wccftech, 6 January 2025, from Intel's briefing: the 200HX CPUs support standard DDR5-6400 SO-DIMMs, or OEMs can use LPDDR5X or LP5/5x CAMM2. ARK lists only DDR5 for this chip, so only the DDR5 SODIMM row is stored.
Max memory speed (official)
6,400MT/s
Memory channels
21Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Max # of Memory Channels 2.
Memory bandwidth (claimed)
Not available
Max memory
256GB1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Max Memory Size 256 GB, dependent on memory type. Tom's Hardware's launch table lists 96 GB for DDR5, and Wccftech writes up to 192 GB. ARK is used.
ECC memory support
No1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026ECC Memory Supported: No.

Platform

Socket or package
BGA21141Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Package: FCBGA2114. Stored without the FC prefix.
Compatible chipsets
Not available
CPU PCIe lanes
PCIe generationLanes
520
44
Source1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Max # of PCI Express Lanes is 24 and PCI Express Revision is 5.0 and 4.0. Configurations: 1x16+2x4, 2x8+2x4, 1x8+4x4. ARK gives no per-generation split. See the Wccftech note for the 20 Gen 5 and 4 Gen 4 split.6Press articlewccftech.com/intel-core-ultra-200hx-core-ultra-200h-arrow-lake-cpus-debut-high-end-gaming-premium-laptops/ampRead 14 October 2026All Intel Core Ultra 200HX CPUs feature 4 PCIe Gen5 and 4 PCIe Gen4 lanes for SSDs. With ARK's 24 total lanes and the 1x16+2x4 configuration, the remaining 16 are the graphics lanes, which run at Gen 5. That gives 20 Gen 5 and 4 Gen 4 lanes.
CPU PCIe lanes in total
24
Highest PCIe generation
5
Native USB ports
Standard
Thunderbolt 4
Source1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Intel Thunderbolt 4: Yes. Intel gives no port count on ARK, so the row has no count.
Native USB4 or Thunderbolt
Yes

Integrated graphics

Integrated graphics
Yes1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026GPU Name: Intel Graphics, with Xe-cores listed.
Integrated GPU
Intel Graphics1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026GPU Name: Intel Graphics. ARK notes that Arc graphics is only on select H-series systems.
GPU cores
41Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Xe-cores: 4.
Max GPU clock
1,850MHz1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Graphics Max Dynamic Frequency 1.85 GHz. Graphics base frequency 300 MHz.
Max displays
41Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026# of Displays Supported: 4.
DisplayPort version
2.1 UHBR201Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Graphics Output: eDP 1.4b, DP 2.1 UHBR20, HDMI 2.1 FRL.
HDMI version
2.1 FRL1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Graphics Output: eDP 1.4b, DP 2.1 UHBR20, HDMI 2.1 FRL.
Hardware video encode
H.264, H.265 (HEVC), AV11Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026H.264, H.265 (HEVC) and AV1 encode and decode are all listed.
Hardware video decode
H.264, H.265 (HEVC), AV11Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026H.264, H.265 (HEVC) and AV1 are listed. ARK has no VP9 row, so VP9 is left out.

NPU

NPU performance
13TOPS1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026NPU Peak TOPS (Int8): 13.
Total AI performance
33TOPS1Maker product pageintel.com/content/www/us/en/products/sku/242292/intel-core-ultra-7-processor-255hx-30m-cache-up-to-5-20-ghz/specifications.htmlRead 14 October 2026Overall Peak TOPS (Int8): 33. GPU Peak TOPS (Int8) is 8.

Measured performance

We could not find any of these 7 fields. Show them
Cinebench 2024 single-core
Not available
Cinebench 2024 multi-core
Not available
Cinebench 2026 single-thread
Not available
Cinebench 2026 multi-core
Not available
Geekbench 6 single-core
Not available
Geekbench 6 multi-core
Not available
Game frame rates
Not available

Measured power and temperature

We could not find any of these 5 fields. Show them
CPU power in multi-thread load (measured)
Not available
CPU power while gaming (measured)
Not available
CPU power at idle (measured)
Not available
CPU temperature in stress test
Not available
All-core clock in stress test
Not available

In the box

We could not find any of these 2 fields. Show them
Cooler in the box
Not available
Included cooler
Not available

Warranty

We could not find any of these 1 fields. Show them
Manufacturer warranty (source market)
Not available

Compare with

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Variants

Each variant lists only what differs from the specs above.

Model number
AC8076806324
AC80768067E4

Sources

We read 6 sources for this CPU. The numbers match the markers in the sheet.

  1. Read 14 October 2026Backs 37 fields
  2. Read 14 October 2026Backs 2 fields
  3. Read 14 October 2026Backs 2 fields
  4. Read 14 October 2026Backs 2 fields
  5. Read 14 October 2026Backs 1 field
  6. Read 14 October 2026Backs 2 fields

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