CPUs / Compare

Apple M5 (10-core CPU) vs Intel Core Ultra X9 388H

A

Product A: Apple

M5 (10-core CPU)

28 of 74 known

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B

Product B: Intel

Core Ultra X9 388H

47 of 74 known

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Every value links to where we found it.

Only differences

AApple M5 (10-core CPU)

BIntel Core Ultra X9 388H

General

7 of 13 differ

Series

Not available

Core Ultra Series 34Press releaseintel.com/content/www/us/en/newsroom/news/artificial-intelligence/ces-2026-intel-core-ultra-series-3-debut-first-built-on-intel-18a.htmlRead 15 October 2026Intel calls the family Intel Core Ultra Series 3. ARK's Product Collection reads Intel Core Ultra Series 3 processors.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

Not available

QQ807293B9B40E3, QQ807293B9B45852Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/ordering.htmlRead 15 October 2026Ordering codes QQ807293B9B40E3 (spec code Q9EK) and QQ807293B9B4585 (spec code SA4QW), both Tray, stepping B0, package FCBGA20X. ARK lists no boxed product.

GTIN / EAN

Not available

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

15 October 20251Press releaseapple.com/newsroom/2025/10/apple-unleashes-m5-the-next-big-leap-in-ai-performance-for-apple-siliconRead 14 October 2026Apple press release dated 15 October 2025: Apple today announced M5. Apple has no chip product page, so this release is the manufacturer link.

5 January 20264Press releaseintel.com/content/www/us/en/newsroom/news/artificial-intelligence/ces-2026-intel-core-ultra-series-3-debut-first-built-on-intel-18a.htmlRead 15 October 2026Intel release dated 5 January 2026 (CES, Las Vegas) introduces the Intel Core Ultra Series 3 processors. It does not name the 388H, and says the top SKUs have up to 16 CPU cores, 12 Xe-cores and 50 NPU TOPS.

Status

Available2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026MacBook Pro (14-inch, M5) tech specs are current on Apple Support. Apple also sells the M5 in the MacBook Air, iPad Pro and Apple Vision Pro.

Available1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Marketing Status: Launched. Launch Date: Q1'26. Product Collection: Intel Core Ultra Series 3 processors. Vertical Segment: Mobile.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Not available

Not available

SegmentiThe segment the chip maker sells it in. Intel calls laptop chips Mobile. AMD laptop chips that also list Desktops, for mini PCs, stay laptop.

Laptop2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Apple sells the M5 with a 10-core CPU in the MacBook Pro 14-inch and the MacBook Air. The iPad Pro uses a 9-core binned version, which is another product.

Laptop1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Vertical Segment row reads Mobile.

Instruction setiApple and Qualcomm chips are Arm64. Intel and AMD chips are x86-64.

Arm648Press articletech.yahoo.com/ai/apple-intelligence/articles/virtualized-windows-11-test-shows-090000669.htmlRead 14 October 2026The article runs the arm64 build of CPU-Z on the M5, version 1.04.arm64. Apple silicon is an Arm chip.

x86-641Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Instruction Set: 64-bit, with Intel 64 listed as Yes. Intel's 64-bit processors are x86-64.

CodenameiThe chip maker's codename. Intel: the Code Name row without "Products formerly". AMD: the Former Codename row without the socket.

Not available

Panther Lake1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Code Name row reads Products formerly Panther Lake.

CPU process (as published)iVerbatim name of the process the CPU cores are made on, e.g. TSMC N3B or Intel 18A.

TSMC N3P6Press articletomshardware.com/pc-components/cpus/apple-unveils-m5-chip-with-10-core-cpu-and-10-core-gpu-company-says-3nm-chip-offers-4x-peak-gpu-performance-over-m4-for-ai-45-percent-graphics-upliftRead 14 October 2026Tom's Hardware, 15 October 2025: the M5 uses TSMC 3nm technology, with the N3P process node on the M5 against N3E on the M4. Apple itself names only third-generation 3-nanometer technology.

Intel 18A1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026CPU Lithography row: Intel 18A. The GPU tile lithography row reads TSMC N3E.

CPU process nodeiThe nm class of the named CPU-core process, as on laptops and desktop PCs: TSMC N3B is 3, Intel 7 is 10, Intel 4 is 7 and Intel 18A is 1.8. The exact name is in CPU process (as published). I/O and graphics dies may use other nodes.

3nm1Press releaseapple.com/newsroom/2025/10/apple-unleashes-m5-the-next-big-leap-in-ai-performance-for-apple-siliconRead 14 October 2026Apple says M5 is built using third-generation 3-nanometer technology and names no foundry.

1.8nm1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Intel 18A is stored as 1.8 nm by the field rule. Intel prints no nm figure.

AVX-512iThe chip maker lists AVX-512 among the supported instruction extensions.

Not available

No1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Instruction Set Extensions lists Intel SSE4.1, SSE4.2 and AVX2 only.

Cores and clocks

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Core configurationiOne row per core group the chip maker names. Intel names performance, efficient and low-power efficient cores. AMD names Zen 5 and Zen 5c cores. Qualcomm names prime and performance cores.

AApple M5 (10-core CPU)

Core type	Count	Core	Max clock (GHz)
Super	4	Super	4.61
Efficiency	6	Efficiency	3.05

Source2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Chip section: 10-core CPU with 4 super cores and 6 efficiency cores. Apple publishes no clock speeds for the cores.5Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 14 October 2026Apple, 3 March 2026: the super core was first introduced as performance cores in M5, which also adopts the super core name for all M5-based products. The four fastest M5 cores are stored with core type super.7Press articlewccftech.com/apple-renames-m5-performance-cores-to-super-coresRead 14 October 2026Super core max_ghz 4.61 from the same article. The article lists the efficiency cores at 3.00GHz, but Ars Technica and Eclectic Light read 3,048 MHz from the system, which is 3.05 GHz and is stored for the efficiency cores.11Reviewarstechnica.com/gadgets/2026/03/testing-apples-2026-16-inch-macbook-pro-m5-max-and-its-new-performance-coresRead 21 October 2026Same table: maximum clock 4,608 MHz for the super cores and 3,048 MHz for the efficiency cores, from powermetrics and sysctl. This gives 4.61 and 3.05 GHz.12Press articleeclecticlight.co/2026/04/13/cpu-core-frequencies-updated-for-all-current-apple-silicon-macsRead 21 October 2026Eclectic Light reads the maximum core frequencies from powermetrics for the M5: 4608 MHz for the super cores and 3048 MHz for the efficiency cores. This agrees with Ars Technica.

BIntel Core Ultra X9 388H

Core type	Count	Core	Base clock (GHz)	Max clock (GHz)
Performance	4	Cougar Cove	2.1	5.1
Efficiency	8	Darkmont	1.6	3.8
Low-power efficiency	4	Darkmont	1.6	3.7

Source1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026# of Performance-cores 4 with base 2.1 GHz and Max Turbo 5.1 GHz. # of Efficient-cores 8 with base 1.6 GHz and Max Turbo 3.8 GHz. # of Low Power Efficient-cores 4 with base 1.6 GHz and Max Turbo 3.7 GHz. Total cores 16. ARK does not name the core architectures. Cougar Cove and Darkmont come from the Chips and Cheese and Igor's Lab Panther Lake architecture articles.5Press articleold.chipsandcheese.com/2025/10/14/panther-lakes-reveal-at-itt-2025Read 15 October 2026Chips and Cheese, 14 October 2025: the P-cores are codenamed Cougar Cove and the E-cores Darkmont. The largest Panther Lake configuration has 4 P-cores, 8 E-cores and 4 LP E-cores, with the 18 MB L3 shared by the P-cores and E-cores and the 12 Xe3 core GPU tile.6Press articleigorslab.de/en/evolution-or-revolution-intel-panther-lake-including-architecture-efficiency-and-software-integrationRead 15 October 2026Igor's Lab names the compute tile cores as four Cougar Cove-P, eight Darkmont-E and four Darkmont-LP-E cores. The LP E-core row stores Darkmont from this source.

CoresiPhysical cores, not threads.

10=CalculatedFrom Core configuration

16=CalculatedFrom Core configuration

Cores labelled performanceiCounts only cores the chip maker labels performance. Not available when the maker labels no roles, as on AMD chips. Qualcomm and Apple use other labels for their fastest cores.

0=CalculatedFrom Core configuration

4=CalculatedFrom Core configuration

Cores labelled efficiencyiCounts efficient and low-power efficient cores. Not available when the maker labels no roles.

6=CalculatedFrom Core configuration

12=CalculatedFrom Core configuration

ThreadsiHardware threads, including simultaneous multithreading where the chip has it.

108Press articletech.yahoo.com/ai/apple-intelligence/articles/virtualized-windows-11-test-shows-090000669.htmlRead 14 October 2026Tom's Hardware article syndicated on Yahoo Tech: the M5 has 10 cores without simultaneous multi-threading, so a benchmark runs 10 threads on it.

161Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Total Threads 16. There are no multi-threaded cores in this layout: 16 cores and 16 threads.

Max boost clockiHighest clock the chip maker states for the processor, Intel Max Turbo Frequency or AMD Max. Boost Clock. Often reached on one or two cores only. It can be higher than every core group's max clock.

4.61GHz7Press articlewccftech.com/apple-renames-m5-performance-cores-to-super-coresRead 14 October 2026Wccftech, 3 March 2026: a Geekbench 6 comparison shows the M5 super cores running at 4.61GHz. Apple publishes no clock speeds. Tom's Hardware's MacBook Pro review reads 4.6 GHz single-core from Cinebench 2024.11Reviewarstechnica.com/gadgets/2026/03/testing-apples-2026-16-inch-macbook-pro-m5-max-and-its-new-performance-coresRead 21 October 2026Super core maximum clock 4,608 MHz in the same table. Agrees with 4.61 GHz.12Press articleeclecticlight.co/2026/04/13/cpu-core-frequencies-updated-for-all-current-apple-silicon-macsRead 21 October 2026powermetrics maximum for the super cores: 4608 MHz. Agrees with 4.61 GHz.

5.1GHz1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Max Turbo Frequency 5.1 GHz, the same as the Performance-core Max Turbo Frequency and the Turbo Boost Max Technology 3.0 Frequency.

Unlocked for overclockingiThe core multiplier is unlocked, as on Intel K models and AMD chips listed as Unlocked for Overclocking. Memory profiles such as XMP or EXPO alone do not count.

Not available

Not available

Cache

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L2 cacheiTotal L2 cache of all cores.

22MB11Reviewarstechnica.com/gadgets/2026/03/testing-apples-2026-16-inch-macbook-pro-m5-max-and-its-new-performance-coresRead 21 October 2026Ars Technica, 9 March 2026, read with sysctl on macOS 26.3.1: the M5 super cores have 16 MB of L2 per cluster and the M5 efficiency cores have 6 MB per cluster. The M5 has one super cluster and one efficiency cluster, so total L2 is 16 + 6 = 22 MB. Apple publishes no cache sizes.

Not available

L3 cacheiTotal L3 cache, including 3D V-Cache. Intel Smart Cache is L3. L2 is not added. A total cache figure from Qualcomm or Apple is not L3.

Not available

18MB1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 202618 MB Intel Smart Cache. The Total L2 Cache row is not on ARK.

AMD 3D V-CacheiExtra L3 cache stacked on a compute die. Yes when at least one compute die has it.

Not available

No1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026AMD technology. ARK lists only the 18 MB Smart Cache and no stacked cache.

Power and thermals

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Base power (TDP)iIntel Processor Base Power or AMD Default TDP. A rating for cooler and board design, not measured power draw. A Default TDP printed as a range, such as 35-54 W, is not stored.

Not available

25W1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Processor Base Power 25 W.

Max turbo poweriHighest package power limit at stock settings. Intel Maximum Turbo Power, or AMD's package power tracking (PPT) limit. The source note says which. Only a source that names this exact chip counts. A database value applied to a whole class of chips does not.

Not available

80W1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Maximum Turbo Power 80 W with no footnote on ARK. Intel's launch SKU slide and the Quick Reference Guide print two values for this chip, 65 W and 80 W, which means the limit depends on the laptop maker's configuration. The ARK value is stored.3Maker spec sheet (PDF)cdrdv2-public.intel.com/871380/Intel%20Core%20Ultra%20Series%203%20Processors%20-%20Quick%20Reference%20Guide%20v1.pdfRead 15 October 2026Page 3 lists Maximum Turbo Power 65, 80 W with the Processor Base Power 25 W. The footnote says systems with a base power of 25 W and a turbo power of 64 W are supported, and systems with a base power of 45 W and a turbo power of 80 W. The ARK value of 80 W is stored.

Configurable power rangeiThe sustained power range a PC or laptop maker may set. AMD cTDP. Intel Minimum and Maximum Assured Power.

Not available

Minimum15W1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Minimum Assured Power 15 W. ARK has no Maximum Assured Power row, so max_w is left out.

Max operating temperatureiHighest die temperature the chip maker allows, called Tjmax or Tjunction. The chip lowers its clocks to stay below it.

Not available

100°C1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Max Operating Temperature 100 C, listed under Package Specifications.

Memory

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Memory supportiOfficial memory speeds per memory type, module type and module configuration, as the chip maker states them.

AApple M5 (10-core CPU)

Memory type	Max speed (MT/s)
LPDDR5X	9,600

Source9Reviewdday.it/redazione/56657/recensione-macbook-pro-m5-max-il-primo-passo-verso-un-nuovo-modo-di-lavorareRead 14 October 2026DDay.it, MacBook Pro M5 Max review: the whole M5 family uses LPDDR5X memory at 9,600 MT/s, and the M4 used 7,500 MT/s on a 128-bit bus. The base M5 bandwidth of 153 GB/s matches a 128-bit bus at 9,600 MT/s. Apple does not state the memory type or speed. Apple states only unified memory, so module type and configuration are left out.

BIntel Core Ultra X9 388H

Memory type	Max speed (MT/s)
LPDDR5X	9,600

Source1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Memory Types row: Up to LPDDR5X 9600 MT/s. ARK lists no DDR5 and names no module type, rank or configuration, so those keys are left out.

Max memory speed (official)iHighest official speed in the memory support table, for any module type. Four modules or plain UDIMMs can run slower. Intel quotes some chips with CUDIMM speeds only.

9,600MT/s=CalculatedFrom Memory support

9,600MT/s=CalculatedFrom Memory support

Memory channelsiCounted in 64-bit channels, as Intel and AMD count them. A DDR5 module has two 32-bit subchannels and makers count it as one channel. A maker that counts narrower channels and states their width is converted by the total bus width, so Qualcomm's 8 channels of 16 bits are 2. A total bus width alone is divided by 64, so AMD's 256-bit interface is 4. The maker's own count goes in the source note.

213Spec databaseen.wikipedia.org/wiki/Apple_siliconRead 21 October 2026M-series table, M5 row: 128-bit memory bus, listed as 8 channels of 16 bits. The field counts 64-bit channels, so 128 bits is 2. Apple states no bus width. A 128-bit bus at 9,600 MT/s is 153.6 GB/s, which matches the 153GB/s that Apple states. Wikipedia lists the same 16 MB and 6 MB L2 split as Ars Technica.

21Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Max # of Memory Channels: 2.

Memory bandwidth (claimed)iPeak memory bandwidth the chip maker states. Not a measurement.

153GB/s1Press releaseapple.com/newsroom/2025/10/apple-unleashes-m5-the-next-big-leap-in-ai-performance-for-apple-siliconRead 14 October 2026Apple states unified memory bandwidth of 153GB/s, a nearly 30 percent increase over M4. The release also says M5 has up to a 10-core CPU made up of six efficiency cores and up to four performance cores, which Apple later renamed super cores.2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Chip section: 153GB/s memory bandwidth.

Not available

Max memoryiMost memory the chip maker says the processor supports. When the limit depends on the device, as for Apple chips, the highest limit the maker states for this chip in any device. The device goes in the source note. When Intel's documents differ, such as 192 GB in a launch brief and 256 GB on its spec page, the current spec page wins, since newer memory modules can raise the limit.

32GB2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Memory section: 16GB, 24GB, or 32GB unified memory for the MacBook Pro 14-inch with M5.

96GB1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Max Memory Size (dependent on memory type): 96 GB.

ECC memory supportiThe chip maker says the processor supports ECC memory. Most need a board that supports it too. DDR5 on-die ECC does not count.

Not available

Not available

Platform

5 of 7 differ

Socket or packageiDesktop socket, e.g. AM5 or LGA1851. Laptop chips are soldered, so this is the package the maker names, e.g. FP8. When the maker names several packages, in the socket row or the product IDs, list them all separated by commas, such as "FP7, FP7r2".

Not available

BGA25401Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Sockets Supported: FCBGA2540. Stored without the FC prefix.

Compatible chipsetsiDesktop chipsets the chip maker lists, with the brand and without the word chipset, e.g. AMD X870E, AMD B850 or Intel Z890. Same form as the motherboard chipset.

Not available

Not available

CPU PCIe lanesiUsable PCIe lanes from the processor, one row per PCIe generation. Lanes that link the CPU to the chipset are not counted. If the maker gives only a total, a review that lists the split may be used, and the source note names it. When the package also holds the chipset, as on Intel Raptor Lake U and H chips, ARK's total includes the chipset lanes. Those are not counted, so the datasheet split is used. On Intel Core Ultra chips, such as Panther Lake, the platform controller or SoC tile is part of the processor, so its lanes count.

AApple M5 (10-core CPU)

Not available

BIntel Core Ultra X9 388H

PCIe generation	Lanes
5	4
4	8

Source1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026PCI Express Revision 5.0 and 4.0. Max # of PCI Express Lanes 12. PCI Express Configurations: x4 PCIe5 (1x4, 2x2) and two rows of x4 PCIe4 (1x4, 2x2, 4x1). That gives 4 lanes at Gen 5 and 8 lanes at Gen 4, which adds up to the stated 12. The Quick Reference Guide gives the same split, 12 (8 G4, 4 G5). The Core Ultra 9 386H has 20 lanes with an extra 8 Gen 5 lanes.3Maker spec sheet (PDF)cdrdv2-public.intel.com/871380/Intel%20Core%20Ultra%20Series%203%20Processors%20-%20Quick%20Reference%20Guide%20v1.pdfRead 15 October 2026Page 3: Total Platform PCIe Lanes, CPU PCIe Config for the 388H reads 12 (8 G4, 4 G5).5Press articleold.chipsandcheese.com/2025/10/14/panther-lakes-reveal-at-itt-2025Read 15 October 2026The article says the largest configuration keeps the I/O configuration of the smallest one, which is 4 Gen 5 and 8 Gen 4 lanes for 12 lanes. The middle configuration, as in the Core Ultra 9 386H, adds 8 Gen 5 lanes.

CPU PCIe lanes in totaliUsable lanes from the processor. Lanes to the chipset are not counted.

Not available

12=CalculatedFrom CPU PCIe lanes

Highest PCIe generationiHighest PCIe generation of the processor's own lanes. Chipset lanes are not counted.

Not available

5=CalculatedFrom CPU PCIe lanes

Native USB portsiUSB ports the processor itself provides, as the chip maker lists them. The board or laptop decides which ones reach a connector. Chipset ports are not counted. eUSB2 is the embedded USB 2.0 link that Qualcomm lists. It needs a repeater on the board to become a USB 2.0 port.

AApple M5 (10-core CPU)

Standard
Thunderbolt 4

Source2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Thunderbolt / USB 4 Ports row: three Thunderbolt 4 (USB-C) ports with Thunderbolt 4 and USB 4, both up to 40Gb/s. The MacBook Air page below lists two Thunderbolt 4 ports. Apple states no port count for the chip, so the row has no count.3Maker product pagesupport.apple.com/en-us/126320Read 21 October 2026Thunderbolt / USB 4 Ports row: two Thunderbolt 4 (USB-C) ports with Thunderbolt 4 and USB 4, both up to 40Gb/s. The MacBook Pro 14-inch lists three. Apple states no port count for the chip.

BIntel Core Ultra X9 388H

Standard	Count
Thunderbolt 4	4

Source1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Intel Thunderbolt 4: Yes. ARK gives no port count. The count of 4 comes from the Quick Reference Guide.3Maker spec sheet (PDF)cdrdv2-public.intel.com/871380/Intel%20Core%20Ultra%20Series%203%20Processors%20-%20Quick%20Reference%20Guide%20v1.pdfRead 15 October 2026Page 3: a merged cell for the 388H, 386H, 368H and 366H rows reads 4 Integrated Thunderbolt 4 Ports, Discrete Thunderbolt 5 Technology Support. Only the 4 integrated Thunderbolt 4 ports are stored. Thunderbolt 5 needs a separate controller on the laptop board.

Native USB4 or ThunderboltiThe processor itself provides USB4 or Thunderbolt. The board or laptop must still wire it to a port.

Yes=CalculatedFrom Native USB ports

Yes=CalculatedFrom Native USB ports

Integrated graphics

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Integrated graphicsiNo for chips that need a graphics card, such as Intel F models.

Yes2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026The 10-core GPU is part of the M5 chip.

Yes1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026

Integrated GPUiAs the chip maker names it.

Apple M5 GPU2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Chip section lists a 10-core GPU for the MacBook Pro. The MacBook Air page lists 8-core GPU or 10-core GPU with the same 10-core CPU, so the core count is stored as two variant rows (8 and 10) and not as one base value.3Maker product pagesupport.apple.com/en-us/126320Read 21 October 2026MacBook Air (13-inch, M5) tech specs, Chip section: 10-core CPU with 4 super cores and 6 efficiency cores, with an 8-core GPU or a 10-core GPU. Configurable to M5 with 10-core CPU and 10-core GPU. The core count is stored as two variant rows (8 and 10).

Intel Arc B3901Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026GPU Name: Intel Arc B390 GPU. Intel also sells an Arc Pro B390 name for vPro systems.

GPU coresiAs the chip maker counts them: AMD compute units, Intel Xe-cores, Apple GPU cores. Counts from different makers are not comparable. Intel execution units (EUs) are not Xe-cores and are not stored here. Apple sells some chips with two GPU core counts under one name, so it is per variant.

8 to 102Maker product pagesupport.apple.com/en-us/125405Read 21 October 20263Maker product pagesupport.apple.com/en-us/126320Read 21 October 202614Reviewtomshardware.com/laptops/macbooks/apple-macbook-air-13-inch-m5-reviewRead 21 October 2026

121Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Xe-cores: 12. Ray Tracing: Yes.

Max GPU clockiIntel Graphics Max Dynamic Frequency or AMD Graphics Frequency.

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2,500MHz1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Graphics Max Dynamic Frequency 2.5 GHz.

Max displaysiDisplays the integrated GPU drives at the same time. The chip maker's total. Intel counts a built-in laptop panel in it. A count of external displays only, as Qualcomm gives, is left out and goes in the source note.

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41Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026# of Displays Supported: 4. Max Resolution (DP) 7680 x 4320 at 60 Hz and eDP 3840 x 2400 at 120 Hz.

DisplayPort versioniHighest DisplayPort version the integrated GPU outputs, with the UHBR rate when stated.

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2.1 UHBR201Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Graphics Output: eDP 1.5, DP 2.1 UHBR20, HDMI 2.1 FRL.

HDMI versioniHighest HDMI version the integrated GPU outputs, as published.

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2.1 FRL1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026Graphics Output: eDP 1.5, DP 2.1 UHBR20, HDMI 2.1 FRL.

Hardware video encodeiCodecs the chip maker states the integrated GPU encodes in hardware.

H.264, H.265 (HEVC)2Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026Media Engine row: hardware-accelerated H.264, HEVC, ProRes and ProRes RAW, with a video encode engine and a ProRes encode and decode engine.

H.264, H.265 (HEVC), AV11Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026H.264 and H.265 (HEVC) hardware encode and decode and AV1 encode and decode are listed. H.266 is decode only.

Hardware video decodeiCodecs the chip maker states the integrated GPU decodes in hardware.

H.264, H.265 (HEVC), AV12Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026The Media Engine row lists a video decode engine, H.264, HEVC, ProRes and ProRes RAW, plus AV1 decode. Apple does not list VP9 decode.

H.264, H.265 (HEVC), AV1, H.266 (VVC)1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026H.264, H.265 (HEVC), AV1 and H.266 (decode only) are listed for hardware decode. ARK has no VP9 row, so VP9 is left out.

NPU

1 of 2 differ

NPU performanceiNPU only, as the chip maker states it. CPU and GPU AI throughput are not included. Precision, usually INT8, belongs in the source note.

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50TOPS1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026NPU Peak TOPS (Int8): 50. ARK lists GPU Peak TOPS (Int8) 122 but has no Overall Peak TOPS row, so platform_tops is left out.

Total AI performanceiThe chip maker's combined AI figure for CPU, GPU and NPU together, e.g. Intel Overall Peak TOPS or AMD Overall TOPS.

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Measured performance

2 of 7 differ

Cinebench 2024 single-coreiMeasured by a reviewer, not claimed by the maker. Compare only results from the same reviewer.

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Cinebench 2024 multi-coreiMeasured by a reviewer, not claimed by the maker. Compare only results from the same reviewer.

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Cinebench 2026 single-threadiMeasured by a reviewer, not claimed by the maker. The CPU (Single Thread) test, not the CPU (Single Core) test with the core's second thread. Compare only results from the same reviewer.

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Cinebench 2026 multi-coreiMeasured by a reviewer, not claimed by the maker. The CPU (Multiple Threads) test. Not comparable with Cinebench 2024. Compare only results from the same reviewer.

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Geekbench 6 single-coreiMeasured by a reviewer, not claimed by the maker. Geekbench 6 only. Geekbench 7 has another scale and is not stored here. Intel Binary Optimization on or off goes in the source note. Store results with it off. Compare only results from the same reviewer.

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3,036points7Reviewclub386.com/intel-core-ultra-series-3-panther-lake-reviewRead 15 October 2026Club386 Core Ultra Series 3 review of the X9 388H, 26 January 2026. App performance table: Geekbench 6 single-core 3,036. Tested in an Asus Zenbook 14 Duo (UX8407) with 32 GB LPDDR5X-9600, Windows Performance power mode and the Asus fan mode set to Performance, which the review says were used for all performance figures. The Geekbench 6 minor version is not stated and the review does not mention Intel Binary Optimization.

Geekbench 6 multi-coreiMeasured by a reviewer, not claimed by the maker. Geekbench 6 only. Geekbench 7 has another scale and is not stored here. Intel Binary Optimization on or off goes in the source note. Store results with it off. Compare only results from the same reviewer.

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17,800points7Reviewclub386.com/intel-core-ultra-series-3-panther-lake-reviewRead 15 October 2026Geekbench 6 multi-core 17,800 in the same table. The review text calls this 62.9 percent faster than the Core Ultra 9 288V at 10,926, which matches. Same test laptop and settings. Tom's Hardware measured 3,031 and 17,283 in the same laptop and is not used, since Club386 is the Geekbench 6 reviewer for this type.

Game frame ratesiReviewer game results with this processor and the named graphics card, at native resolution with no upscaling and ray tracing off unless the source note says otherwise. Intel Binary Optimization or APO on or off goes in the source note. Store only results with it off. Compare only results from the same reviewer. A 99th percentile frame rate, as Tom's Hardware prints it, is stored as the 1 % low.

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Measured power and temperature

2 of 5 differ

CPU power in multi-thread load (measured)iMeasured by a reviewer, not claimed by the maker. CPU package power in a sustained all-core load such as Cinebench multi-core. Not wall power. Compare only results from the same reviewer.

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CPU power while gaming (measured)iMeasured by a reviewer, not claimed by the maker. Average CPU package power while gaming. Not wall power. Compare only results from the same reviewer. Intel Binary Optimization or APO on or off goes in the source note. A geomean that mixes games with it on and off is left out.

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CPU power at idle (measured)iMeasured by a reviewer, not claimed by the maker. CPU package power at the reviewer's idle state. Not wall power. Compare only results from the same reviewer.

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CPU temperature in stress testiMeasured by a reviewer, not claimed by the maker. Highest absolute CPU temperature in a sustained all-core load. A delta over room temperature is not stored. It depends on the cooler. Compare only results from the same reviewer.

87°C10Measurementtomshardware.com/laptops/ultrabooks-ultraportables/apple-macbook-pro-14-inch-m5-late-2025-reviewRead 14 October 2026Tom's Hardware review of the 14-inch MacBook Pro (M5, late 2025). During a 10-run Cinebench 2024 stress test, measured with the TG Pro app, the M5 itself registered 87 C. The fans spun up at the start. The laptop's power mode and the room temperature are not stated. The same test settled at 1,100 to 1,128 points, so no single Cinebench result is stored.

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All-core clock in stress testiMeasured by a reviewer, not claimed by the maker. Sustained clock under an all-core load. On chips with several core groups, the clock of the group with the highest rated clock, such as Intel P-cores, even when another group measures higher. Compare only results from the same reviewer.

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2.86GHz8Measurementtomshardware.com/laptops/gaming-laptops/asus-zenbook-duo-2026-reviewRead 15 October 2026Tom's Hardware review of the Asus Zenbook Duo (UX8407) with the Core Ultra X9 388H, 26 January 2026. During its ten-run Cinebench 2026 stress test the performance cores ran at an average of 2.86 GHz, the efficiency cores at 2.7 GHz and the low-power efficient cores at 2.45 GHz. The P-cores are the fastest group, so 2.86 GHz is stored. The review does not state the laptop's power mode, fan profile or room temperature. The ten runs scored 3,872 on the first run and in the mid 3,800s after run 5, so no single Cinebench result is stored.

In the box

None of 2 known

Cooler in the boxiA cooler comes in the retail box. Tray versions have none.

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Included cooler

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Links

Not compared

Product page

www.apple.com/newsroom/2025/10/apple-unleashes-m5-the-next-big-leap-in-ai-performance-for-apple-silicon1Press releaseapple.com/newsroom/2025/10/apple-unleashes-m5-the-next-big-leap-in-ai-performance-for-apple-siliconRead 14 October 2026

www.intel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.html1Maker product pageintel.com/content/www/us/en/products/sku/245526/intel-core-ultra-x9-processor-388h-18m-cache-up-to-5-10-ghz/specifications.htmlRead 15 October 2026

Spec sheet

support.apple.com/en-us/1254052Maker product pagesupport.apple.com/en-us/125405Read 21 October 2026

cdrdv2-public.intel.com/871380/Intel%20Core%20Ultra%20Series%203%20Processors%20-%20Quick%20Reference%20Guide%20v1.pdf3Maker spec sheet (PDF)cdrdv2-public.intel.com/871380/Intel%20Core%20Ultra%20Series%203%20Processors%20-%20Quick%20Reference%20Guide%20v1.pdfRead 15 October 2026Intel Core Ultra Series 3 Processors Quick Reference Guide v1, SKU table on page 3 with a row for the Core Ultra X9 388H.

Manual

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EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

None of 1 known

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

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Both are also in the API. Back to all CPUs.