#1 Overall Winner
Intel 660p Series 2TB NVMe SSD
- 2TB capacity provides substantially more room for game libraries, media, applications, and files.
Comparison
The Intel 660p 2TB and Kingston A400 240GB are internal SSDs aimed at very different upgrade needs. Choose the Intel for a compatible M.2 NVMe system needing far more capacity and higher rated peak transfer speeds; choose the Kingston for a conventional 2.5-inch SATA hard-drive replacement with stronger supplied reliability, value, and satisfaction scores.
#1 Overall Winner
Contender
Choose the Intel 660p 2TB for a compatible M.2 NVMe slot, large game or media storage, and higher rated peak transfer speeds. Choose the Kingston A400 240GB for a 2.5-inch SATA hard-drive upgrade, dependable everyday use, and stronger supplied reliability and satisfaction results.
Overall winner
Depends on your needs
| Feature | Intel 660p Series 2TB NVMe SSD | Kingston A400 240GB SATA SSD | Winner |
|---|---|---|---|
Overall score |
79 |
92 |
Kingston A400 240GB SATA SSD |
Capacity |
2TB |
240GB |
Intel 660p Series 2TB NVMe SSD |
Interface and form factor |
M.2 2280 PCIe NVMe 3.0 x4 |
2.5-inch SATA |
Depends |
Rated sequential read |
Up to 1800 MB/s |
Up to 500 MB/s |
Intel 660p Series 2TB NVMe SSD |
Rated sequential write |
Up to 1800 MB/s |
Up to 450 MB/s |
Intel 660p Series 2TB NVMe SSD |
Sustained heavy writes |
Can slow after SLC cache fills |
No comparable cache concern provided |
Kingston A400 240GB SATA SSD |
Reliability score |
70 |
89 |
Kingston A400 240GB SATA SSD |
Durability score |
66 |
84 |
Kingston A400 240GB SATA SSD |
Setup score |
84 |
90 |
Kingston A400 240GB SATA SSD |
Value score |
89 |
93 |
Kingston A400 240GB SATA SSD |
Customer satisfaction score |
91 |
96 |
Kingston A400 240GB SATA SSD |
Best fit |
Large, read-heavy NVMe storage |
2.5-inch SATA HDD replacement |
Depends |
Intel has the higher stated peak sequential performance, with up to 1800 MB/s reads and writes versus Kingston's up to 500 MB/s and 450 MB/s. That advantage is meaningful for compatible NVMe systems and lighter transfers that remain within the Intel's cache behavior. The supplied performance and speed scores nevertheless favor Kingston, reflecting its stronger everyday SATA-upgrade assessment. For sustained large writes, Intel reviews warn that performance can drop substantially after the SLC cache is filled; buyers with recurring heavy-write workloads should treat that limitation seriously.
For peak rated sequential speed, Intel is clearly ahead at up to 1800 MB/s read and write, compared with Kingston's up to 500 MB/s read and 450 MB/s write. Real-world behavior is more conditional: Intel reviewers report strong everyday and game-loading performance but possible severe slowdown after sustained large writes fill the SLC cache. Kingston's supplied speed score is higher and review feedback is consistently positive for an HDD-to-SSD upgrade, though SATA sets a lower ceiling.
Kingston is the stronger choice on the supplied reliability score. Its review overview emphasizes reliable everyday operation, and several reviews describe long-running use without issues. Intel's reliability feedback is mixed: some users report good results, but the supplied summary notes concerns that it may not last, while QLC NAND and cache behavior make demanding write workloads a less suitable match. Neither drive should be selected without maintaining backups for important data.
Both drives receive favorable installation feedback when matched to compatible hardware. Kingston has the higher usability score and is built for familiar 2.5-inch SATA upgrades, while reviewers frequently report fast operating-system installation and an immediate improvement over HDD behavior. Intel reviews also describe a simple install and Windows initialization process, but users must confirm an M-key M.2 NVMe-capable slot. Intel's cache behavior and potential cooling consideration add more workload and setup awareness.
These drives have fundamentally different physical designs. The Intel is a small M.2 2280 module that installs directly into a compatible motherboard or laptop slot, reducing cable and bay requirements. The Kingston is a 2.5-inch SATA drive intended for a traditional drive bay and SATA connection. Intel has the higher design score, but the better design depends entirely on the host computer: M.2 NVMe for supported modern systems, 2.5-inch SATA for conventional HDD replacement.
The supplied build-quality score is slightly higher for Intel. Its compact M.2 board is designed for internal M.2 installations, whereas Kingston uses a 2.5-inch enclosure and lists stainless steel as its enclosure material. Kingston's stated lack of moving parts and shock/vibration resistance are useful traits for laptop upgrades. The available data does not establish a clear materials or construction winner beyond these form-factor differences.
Kingston has the higher supplied durability score and is described as more durable than a mechanical hard drive, with no moving parts and stated shock and vibration resistance. Intel's QLC NAND is repeatedly identified in reviews as a longevity trade-off versus other NAND approaches, especially under heavy write use. Intel can be sensible for read-heavy storage, but Kingston has the stronger evidence in the provided data for buyers who prioritize long-term everyday durability.
Kingston has the higher supplied portability score, while both drives are light internal components rather than standalone portable storage products. Intel's M.2 module is physically compact and eliminates SATA cabling in a supported system. Kingston's 2.5-inch format is larger but is more likely to fit the drive bay in an older laptop or desktop. Installation compatibility is more important than the small practical difference in physical size.
The Intel's defining features are its 2TB capacity, M.2 2280 format, PCIe NVMe 3.0 x4 interface, and QLC 3D NAND. Kingston's feature set is simpler: a 240GB 2.5-inch SATA drive with SATA Rev. 2.0 backward compatibility and stated shock and vibration resistance. Intel offers more storage and a newer interface, while Kingston focuses on a broadly familiar HDD-replacement format. Neither product has smart or app-led features central to the buying decision.
Kingston has the higher supplied setup score. Its 2.5-inch SATA format follows the familiar hard-drive replacement path, and reviews describe quick Windows installation and straightforward physical installation. Intel is also generally easy to fit and initialize according to reviews, but the buyer must verify the M.2 slot supports PCIe/NVMe rather than SATA-only M.2. Intel users may also need to consider a heatsink depending on the system and workload.
Compatibility depends on the system rather than a universal winner. Intel requires an M.2 2280 PCIe/NVMe-compatible slot; reviews also mention adapters in certain older Mac configurations and PCIe adapters in desktop use. Kingston requires a 2.5-inch SATA connection and is listed for desktops and laptops, with Xbox One and PlayStation 4 named in its specifications. Intel has the higher supplied compatibility score, but Kingston is usually the practical option where only SATA storage is supported.
Intel leads the supplied connectivity score because it uses PCIe NVMe 3.0 x4, which supports far higher stated sequential transfer rates than SATA. Kingston's SATA connection remains advantageous for older and mainstream systems that lack an NVMe M.2 slot, and it is backward compatible with SATA Rev. 2.0. Do not choose based on interface speed alone: the computer must physically support the selected drive type.
Kingston has the higher supplied power-efficiency score. Its SSD design has no moving parts and is described as cooler and quieter than a mechanical hard drive. Intel's supplied power-efficiency score remains solid, but reviews include reports of heat during operation, with some users adding a heatsink. The provided data does not include directly comparable power-consumption measurements, so this result should be treated as directional rather than a quantified power comparison.
Kingston narrowly leads the supplied value score, aided by strong reliability, setup, satisfaction, and HDD-upgrade feedback. The Intel still offers a distinct kind of value: 2TB capacity and NVMe-rated speed in a drive reviewers often consider attractive for game and read-heavy storage. Value therefore depends on required capacity and platform. A buyer who only needs a modest SATA boot drive may gain more from Kingston; a buyer who needs 2TB in an NVMe slot may find Intel's capacity proposition more relevant.
Intel has a marginally higher supplied brand-trust score. Reviews cite confidence in the Intel name and mention the Intel SSD Toolbox. Kingston also has a strong brand-trust score and an exceptionally large base of customer reviews for the A400. The supplied information does not provide a detailed comparison of support policies or update commitments, so brand preference should not override compatibility and workload requirements.
Both drives hold a 4.8/5 rating in the supplied data, but Kingston has a much larger review count and the higher customer-satisfaction score. Its recurring praise centers on easy HDD upgrades, faster startup, and everyday reliability. Intel also receives very positive feedback for capacity, value, gaming storage, and simple installation. Its satisfaction case is tempered by recurring warnings about QLC endurance, heat, and slower performance during sustained writes.
The provided data does not state warranty terms, return policies, or detailed after-sales support for either model. Kingston has a supplied warranty-support score, while Intel has no applicable supplied score; without underlying policy details, a direct support comparison would be speculative. Check the current seller listing and manufacturer documentation before buying.
The Kingston A400 240GB is the best overall option according to the supplied scoring, leading the Intel 660p in overall result, reliability, durability, setup, value, and customer satisfaction. It is particularly compelling for a basic 2.5-inch SATA hard-drive replacement where a modest-capacity operating-system and application drive is enough.
However, the Intel 660p 2TB is the more appropriate product for a different buyer: someone with a compatible M.2 NVMe slot who needs far more storage and higher rated peak sequential speeds. It is well suited to large game libraries and other predominantly read-heavy data, but its QLC NAND, mixed reliability feedback, heat reports, and sustained-write slowdowns make it a poorer fit for heavy-write professional workloads. Verify interface compatibility first; these are not interchangeable physical upgrades.
Overall winner
Depends on your needs
The supplied overall score favors the Kingston A400, supported by stronger reliability, durability, value, setup, and customer-satisfaction results. However, the Intel 660p is the more suitable choice for buyers who specifically need 2TB capacity and have a compatible M.2 NVMe slot. These drives address different upgrade paths rather than being direct like-for-like replacements.
By stated sequential specifications, the Intel 660p is faster: it is rated up to 1800 MB/s for reads and writes, versus up to 500 MB/s reads and 450 MB/s writes for the Kingston A400. The Intel's reviews also warn that sustained large writes can slow sharply after its SLC cache fills, while the Kingston is constrained by SATA.
Yes. Review feedback repeatedly describes the Intel 660p as a strong fit for large, mostly read-heavy game libraries. Its 2TB capacity is useful as game sizes grow, and its NVMe interface offers higher rated sequential throughput than SATA. It is less appropriate if frequent, very large writes are a central part of the workload.
It is positioned specifically as a 2.5-inch SATA HDD replacement, and supplied reviews commonly report noticeably improved booting, application loading, and general responsiveness after an upgrade. Confirm that the computer accepts a 2.5-inch SATA drive and keep its 240GB capacity in mind before choosing it for a large game or media collection.
The Kingston has the higher setup score and uses the familiar 2.5-inch SATA format, making it a practical option for systems designed around a hard-drive bay. The Intel also receives positive installation feedback, but it requires a compatible M.2 2280 PCIe/NVMe slot. In either case, the correct physical connection is the deciding factor.
The Kingston A400 has the higher supplied reliability score, and its review overview is broadly positive about dependable everyday use. The Intel 660p has mixed reliability feedback and a lower durability score. Its QLC NAND and sustained-write behavior make workload selection more important, particularly for users who write large amounts of data regularly.
No. The Intel 660p is an M.2 2280 PCIe NVMe drive, whereas the Kingston A400 is a 2.5-inch SATA drive. A computer that only provides a 2.5-inch SATA bay cannot accept the Intel without a different supported connection arrangement. Check the motherboard or laptop documentation for M.2 slot type, keying, and PCIe/NVMe support.
The Intel 660p provides 2TB, compared with 240GB on this Kingston A400 model. That difference strongly favors the Intel for game libraries, media collections, large applications, and substantial file storage. The Kingston can still be sufficient for an operating system and a smaller set of programs, depending on the buyer's storage requirements.
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