CPUs / Compare

Apple M5 Pro (15-core CPU) vs Intel Core Ultra X9 388H

A

Product A: Apple

M5 Pro (15-core CPU)

26 of 74 known

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B

Product B: Intel

Core Ultra X9 388H

47 of 74 known

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All 74 fields

Every value links to where we found it.

Only differences

AApple M5 Pro (15-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.

3 March 20261Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 October 2026Apple press release dated 3 March 2026: Apple today announced M5 Pro and M5 Max. 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/126318Read 15 October 2026MacBook Pro (14-inch, M5 Pro or M5 Max) tech specs are current on Apple Support. The apple.com MacBook Pro specs page shows the same M5 Pro rows.

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/126318Read 15 October 2026Apple sells this bin in the 14-inch MacBook Pro only. The page lists the M5 Pro 18-core bin with the 14-inch and 16-inch models.

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.

Arm646Press articlecounterpointresearch.com/cn/insights/apple-m5-pro-chip-teardown-analysisRead 15 October 2026The teardown says the Super and Performance cores are based on the Armv9 instruction set. 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 articlecounterpointresearch.com/cn/insights/apple-m5-pro-chip-teardown-analysisRead 15 October 2026Counterpoint Research teardown analysis, 2 June 2026: process technology TSMC N3P under FIB analysis, and both dies in the M5 Pro are made on TSMC's N3P process. Apple names only third-generation 3-nanometer technology. The teardown covers the 18-core bin and the 15-core bin uses the same chip family.

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/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 October 2026Apple: Fusion Architecture connects two third-generation 3-nanometer dies into one SoC. Apple names no foundry or node name.

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 Pro (15-core CPU)

Core type	Count	Core	Max clock (GHz)
Super	5	Super	4.61
Performance	10	Performance	4.38

Source2Maker product pagesupport.apple.com/en-us/126318Read 15 October 2026Chip section: 15-core CPU with 5 super cores and 10 performance cores. The other M5 Pro bin is an 18-core CPU with 6 super cores and 12 performance cores. Apple publishes no core clocks. Clocks come from the other sources.7Press articleeclecticlight.co/2026/04/13/cpu-core-frequencies-updated-for-all-current-apple-silicon-macsRead 15 October 2026The Eclectic Light Company, 13 April 2026: table of frequencies reported by powermetrics. The M5 Pro row has the highest frequency steps 4380 MHz for the P cores and 4608 MHz for the S cores. Apple publishes no clocks, and the table does not split the 15-core and 18-core bins. Low End Mac lists a P-core clock of 3.05 GHz, which equals the M5 efficiency core clock, and is not used. Apple publishes no base clocks.

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.

15=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.

10=CalculatedFrom Core configuration

4=CalculatedFrom Core configuration

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

0=CalculatedFrom Core configuration

12=CalculatedFrom Core configuration

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

155Spec databasecpubenchmark.net/compare/7230vs7229vs6346vs5189/Apple-M5-Pro-15--vs-Apple-M5-Pro-18--vs-Apple-M4-Pro-12--vs-Apple-M2-Pro-12-3480-MHzRead 15 October 2026PassMark lists the Apple M5 Pro 15 Core as 15 physical cores with 15 threads and a 16-core GPU. Apple states no thread count, and Apple cores have no simultaneous multithreading.

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.

4.61GHz4Spec databaseeverymac.com/systems/apple/macbook_pro/specs/macbook-pro-m5-pro-15-core-cpu-16-core-gpu-14-2026-specs.htmlRead 15 October 2026EveryMac gives 4.6 GHz as the processor speed and says third-party software reports a variable clock around 4.6 GHz. Apple publishes no clock. The exact 4.61 GHz comes from the Eclectic Light powermetrics table.7Press articleeclecticlight.co/2026/04/13/cpu-core-frequencies-updated-for-all-current-apple-silicon-macsRead 15 October 2026Highest S core frequency step in the M5 Pro row: 4608 MHz, stored as 4.61 GHz, the same as the M5 S cores.

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.

Not available

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

4 of 4 differ

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

3 of 6 differ

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

AApple M5 Pro (15-core CPU)

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

Source6Press articlecounterpointresearch.com/cn/insights/apple-m5-pro-chip-teardown-analysisRead 15 October 2026The teardown states LPDDR5X-9600 unified memory with 307 GB/s bandwidth. Apple states unified memory only, with no memory type or speed, so module type and configuration are left out. 9600 MT/s over a 256-bit bus gives 307.2 GB/s, which matches Apple's 307GB/s.

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.

46Press articlecounterpointresearch.com/cn/insights/apple-m5-pro-chip-teardown-analysisRead 15 October 2026The teardown reads a 4-channel LPDDR5X-9600 PHY with four memory controllers on the GPU die. Four 64-bit channels give the 256-bit bus that the bandwidth implies. Apple states no channel count and the teardown covers the 18-core bin. The 15-core bin has the same 307GB/s.

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.

307GB/s1Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 October 2026Apple: M5 Pro supports up to 64GB of unified memory with higher unified memory bandwidth up to 307GB/s. The Apple support tech specs page lists 307GB/s for both the 15-core and the 18-core bin.2Maker product pagesupport.apple.com/en-us/126318Read 15 October 2026Chip section: 307GB/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.

64GB3Maker product pagesupport.apple.com/en-us/128108Read 15 October 2026Mac mini (M6 or M5 Pro) tech specs, Memory section: M5 Pro chip with a 15-core CPU with 5 super cores and 10 performance cores and a 16-core GPU, 24GB unified memory, configurable to 48GB or 64GB. Apple also says the M5 Pro supports up to 64GB. The 14-inch MacBook Pro sells this bin with up to 48GB only, and the 64GB option there needs the 18-core bin.4Spec databaseeverymac.com/systems/apple/macbook_pro/specs/macbook-pro-m5-pro-15-core-cpu-16-core-gpu-14-2026-specs.htmlRead 15 October 2026Maximum RAM 48 GB for the 14-inch MacBook Pro: without changing the M5 Pro from the 15 CPU/16 GPU configuration, the model can be configured with 48 GB of RAM. Higher RAM needs the faster M5 Pro or M5 Max in that laptop. The Mac mini with the same 15-core bin goes to 64 GB, so 48 GB is a laptop limit and is not stored.

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 Pro (15-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 Pro (15-core CPU)

Standard
Thunderbolt 5

Source1Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 October 2026Apple lists Thunderbolt 5 capabilities among the functions of the two dies and says the Thunderbolt 5 ports are each supported by their own custom-designed controller directly on the chip. Apple states no port count for the chip, so the row has no count.

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/126318Read 15 October 2026The GPU is part of the M5 Pro 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 Pro GPU2Maker product pagesupport.apple.com/en-us/126318Read 15 October 2026Apple names the GPU by its core count only, for example 16-core GPU. The name Apple M5 Pro GPU follows the M5 entry, which is stored as Apple M5 GPU.

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.

162Maker product pagesupport.apple.com/en-us/126318Read 15 October 2026The chip section lists a 16-core GPU and a 20-core GPU. The 20-core GPU is offered only with the 18-core CPU (Configurable to: M5 Pro with 18-core CPU and 20-core GPU), so the 15-core CPU bin has the 16-core GPU. EveryMac and PassMark list this bin as 15 CPU cores with a 16-core GPU.4Spec databaseeverymac.com/systems/apple/macbook_pro/specs/macbook-pro-m5-pro-15-core-cpu-16-core-gpu-14-2026-specs.htmlRead 15 October 2026The model is listed as MacBook Pro M5 Pro 15 CPU/16 GPU 14-inch, with a 16-core GPU with a Neural Accelerator in each core.

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)1Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 October 2026Media Engine: hardware-accelerated H.264 and HEVC, with ProRes encode and decode engines. ProRes is not a schema option.2Maker product pagesupport.apple.com/en-us/126318Read 15 October 2026Media Engine row: hardware-accelerated H.264, HEVC, ProRes and ProRes RAW, with a video encode 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), AV11Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 October 2026Media Engine: hardware-accelerated H.264 and HEVC and AV1 decode. Apple lists no VP9 decode.2Maker product pagesupport.apple.com/en-us/126318Read 15 October 2026Media Engine row: video decode engine, H.264, HEVC, ProRes, ProRes RAW and AV1 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

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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.

Not available

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

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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.

Not available

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

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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.

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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.

Not available

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Included cooler

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Links

Not compared

Product page

www.apple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflows1Press releaseapple.com/newsroom/2026/03/apple-debuts-m5-pro-and-m5-max-to-supercharge-the-most-demanding-pro-workflowsRead 15 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/1263182Maker product pagesupport.apple.com/en-us/126318Read 15 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.