What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
TSMC N4X is a 4nm-family foundry process built specifically for high-performance computing (HPC). It prioritizes maximum clock frequency, high drive current and stable power delivery rather than simply minimizing transistor dimensions. TSMC says N4X can deliver up to 15% more performance than N5, or up to 4% more than N4P at 1.2 V; its newer platform information reports a 6% speed gain over N4P and lists volume production from 2024.
What TSMC N4X is
TSMC introduced N4X on December 16, 2021, as its first process in an “X” family reserved for technologies developed specifically for HPC products. It is a member of TSMC’s 4nm generation, derived from the company’s 5nm technology platform, but its design priorities differ from general-purpose mobile or low-power variants.
N4X is intended for chips such as AI accelerators, high-end GPUs, CPUs, FPGAs, server processors and high-speed networking silicon. The process is a manufacturing technology sold to chip designers; it is not a retail processor or graphics-card brand.
Design features aimed at extreme workloads
- Higher drive current: transistor and device structures are tuned to switch more strongly, helping circuits reach higher frequencies.
- High-frequency back-end wiring: TSMC optimized the metal interconnect stack for demanding HPC designs, where resistance and signal integrity can limit clock speed.
- High-density MIM capacitors: super-high-density metal-insulator-metal capacitors support local power delivery when large blocks change state rapidly.
Those changes address a practical HPC problem: a chip may have enough logical capability but still fail to sustain its target frequency because interconnects, voltage droop or package-level power delivery become bottlenecks.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How much faster N4X is than N5 and N4P
TSMC has published two related comparisons. The original N4X launch announcement states that, at 1.2 volts, the process offers up to 15% performance improvement over N5 or up to 4% over N4P. TSMC’s later advanced-technology platform page gives a different current summary: N4P is listed as 11% faster than N5, while N4X is listed as providing a 6% speed gain over N4P with a moderate leakage trade-off.
| Comparison | Published result | Qualification |
|---|---|---|
| N4X versus N5 | Up to 15% performance | TSMC launch claim at 1.2 V |
| N4X versus N4P | Up to 4% performance | TSMC launch claim at 1.2 V |
| N4X versus N4P | 6% speed | TSMC’s later platform-page summary; leakage increases moderately |
| N4P versus N5 | 11% performance | TSMC’s later platform-page summary |
These are foundry-level targets, not independent benchmarks from a finished CPU, GPU or accelerator. “Up to” describes a best-case design or operating point, and the figures should not be converted directly into an equivalent application-speed increase. Actual results depend on architecture, voltage, frequency targets, memory, package, cooling and software.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
What N4X trades for frequency
N4X’s purpose is to maximize performance per die, especially clock speed and current drive. That focus can require more power and can increase leakage compared with a process optimized primarily for energy efficiency. TSMC explicitly notes a moderate leakage trade-off in its N4X summary.
The high-density capacitor structures also illustrate the trade-off: extreme-performance logic needs more robust on-die power distribution, so the process allocates technology and area to reduce voltage fluctuations under heavy load. A designer choosing N4X should therefore evaluate total system power, cooling and power-delivery design, not just the headline frequency gain.
Recommended Free Tools
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
How easy it is to migrate an N5 design
TSMC says N4, N4P, N4C and N4X retain design-rule compatibility with its 5nm technology. N4X therefore allows customers to reuse substantial N5 design investments, including portions of intellectual-property libraries, physical-design methodology and manufacturing knowledge. Compatibility does not mean a free performance upgrade: designers still need to re-optimize timing, power grids, library choices, signal integrity and thermal limits for N4X’s HPC operating point.
Is N4X in volume production?
Yes. TSMC’s current advanced-technology information lists N4X as entering volume production in 2024. That establishes the process status, but it does not disclose every customer, wafer volume or product schedule. Foundry volume production also does not imply that a particular retail chip uses N4X.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Which CPUs, GPUs and AI accelerators use N4X?
No cited official source identifies a named shipping retail CPU, GPU or AI accelerator as an N4X product. TSMC describes N4X as suitable for those categories, but suitability is not proof of adoption. AMD’s official Ryzen 9000 information identifies a 4nm manufacturing process without naming the exact TSMC 4nm variant, so a Ryzen 9000 SKU should not be labeled N4X on that basis alone.
For any claimed N4X product, look for an explicit statement from the chip designer or TSMC. A generic “4nm” label is insufficient because several distinct processes share that marketing generation.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
How N4X fits with CoWoS and TSMC 3DFabric
N4X addresses transistor and wiring performance on the logic die. HPC systems often gain as much from integration and bandwidth as from the process node, so TSMC positions N4X within a wider platform that combines advanced logic with its 3DFabric packaging technologies.
CoWoS
CoWoS is TSMC’s 2.5D packaging technology. It places one or more logic dies alongside high-bandwidth memory and connects them through an interposer or related substrate technology. TSMC calls CoWoS an essential foundation for HPC and AI products. The company reports that CoWoS-L at 3.5 times reticle size has been in volume production since 2024.
InFO and TSMC-SoIC
InFO provides fan-out integration options, while TSMC-SoIC is the company’s 3D chip-stacking technology. Together with CoWoS, these services let a system combine compute tiles, cache, I/O and memory more closely than a single monolithic die can. They can improve compute density, energy efficiency and latency, but they also introduce package yield, thermal, test and supply-chain considerations.
The distinction matters: an N4X node improvement is a property of the logic manufacturing process, whereas CoWoS, InFO and SoIC are packaging and integration technologies. A product may use one without the others, or combine them as part of a complete HPC platform.
The Tool Desk
Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →How to interpret N4X claims
- Separate node claims from product benchmarks. TSMC’s percentages describe its process under stated conditions, not measured application performance.
- Check the voltage and comparison baseline. The launch figures are specified at 1.2 V, while the later page reports a 6% N4P speed gain and a leakage trade-off.
- Confirm the exact variant. “4nm” alone does not establish N4X.
- Include the package and memory system. CoWoS or 3D integration can materially affect bandwidth, latency and total performance.
- Evaluate power and cooling. High drive current and frequency may raise leakage and platform power requirements.
The Bottom Line
N4X is TSMC’s first HPC-specific “X” process: an N5-compatible 4nm technology optimized for clock speed, drive current and power delivery. TSMC reports up to 15% performance over N5 and a 6% speed advantage over N4P in its later summary, with volume production beginning in 2024. The process is available for HPC designs, but no cited official source yet proves that a particular retail CPU, GPU or AI accelerator uses it.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
