6 Best Alternatives to the Sandisk WD_BLACK SN850X 1TB NVMe SSD (2026)
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The Sandisk WD_BLACK SN850X 1TB NVMe SSD delivers top-tier performance with read speeds up to 7,300 MB/s and write speeds up to 6,300 MB/s. If you are looking for sandisk wd black sn850x 1tb nvme SSD alternatives, you might want a different specification or form factor. Some buyers prefer a model with an integrated heatsink for better thermal management in desktop setups. Others may need a drive that fits strictly within a laptop or handheld gaming device without extra bulk. You might also seek a newer interface like PCIe 5.0 for higher bandwidth or a more budget-friendly option that still meets your storage needs.
We selected these alternatives because their published specifications overlap with the original drive’s key metrics. Each option shares the M.2 2280 form factor and NVMe interface, ensuring compatibility with standard systems. We focused on drives that offer comparable sequential read speeds or unique features like SLC caching or specific NAND types. This list helps you compare real specs rather than marketing claims. You can choose based on whether you prioritize raw speed, capacity, or physical dimensions. The goal is to find a drive that matches your system’s requirements and your specific use case, whether that is high-performance gaming or archival storage.
How alternatives compare to the SN850X
WD_BLACK SN770 1TB Gen4 NVMe SSD
The WD_BLACK SN770 1TB Gen4 NVMe SSD offers read speeds up to 5,150 MB/s, which is slower than the SN850X’s 7,300 MB/s peak. It retains the M.2 2280 form factor and NVMe interface, ensuring broad compatibility with gaming systems. This drive is a balanced Gen4 option that may suit users who do not require the absolute highest sequential throughput. It supports DirectStorage, making it a viable mid-range alternative for gaming and general system storage where top-tier speeds are not critical.
WD_BLACK SN850X 1TB NVMe SSD with Heatsink
The Sandisk WD_BLACK SN850X 1TB NVMe SSD with Heatsink matches the original’s 7,300 MB/s read speeds and 6,300 MB/s write speeds. It shares the same M.2 2280 footprint but includes an integrated heatsink for cooling. This makes it a better choice for desktop gaming setups where thermal management is a concern. The physical dimensions are slightly larger due to the cooler, but it provides the same high-performance Gen4 capabilities in a package designed to maintain consistent speeds under heavy loads without additional aftermarket cooling solutions.
Gigastone Game Turbo 1TB NVMe SSD
The Gigastone Game Turbo 1TB NVMe SSD matches the SN850X’s top sequential read speed of 7,300 MB/s over PCIe 4.0. It utilizes SLC caching to handle demanding PC tasks and gaming workloads. Like the original, it fits the standard M.2 2280 form factor. This drive serves as a direct high-speed Gen4 alternative for modern gaming rigs and workstations. You get comparable peak performance in a package that emphasizes sustained throughput for heavy workflows, making it a strong contender if you prioritize maximum sequential transfer rates in a standard form factor.
Sandisk WD_Black SN7100 1TB NVMe SSD
The Sandisk WD_BLACK SN7100 1TB NVMe SSD uses TLC 3D NAND and provides fast PCIe Gen4 transfer rates in a standard M.2 2280 format. While specific sequential speeds are not listed here, it is positioned as a solid pick for laptop and handheld gaming upgrades. It lacks the integrated heatsink found in some premium options, making it suitable for systems with adequate airflow. This drive offers a compact, high-performance Gen4 solution for users upgrading portable devices or small form factor builds who do not need the absolute highest sequential throughput of the SN850X.
Sandisk WD_Black 1TB PCIe 5.0 Heatsink SSD
The Sandisk WD_Black SN8100 1TB Heatsink SSD jumps to PCIe 5.0, offering sequential read speeds up to 14,900 MB/s. This is significantly faster than the SN850X’s Gen4 speeds. It includes an integrated passive cooler and fits the M.2 2280 form factor. This drive is designed for PCIe 5.0 desktop gaming systems that support the newer interface. You gain a substantial bandwidth increase if your motherboard and CPU support PCIe 5.0, making it the next logical step up from the SN850X for users seeking the highest possible transfer rates in a standard size.
Intel 660p 2TB QLC NVMe SSD
The Intel 660p 2TB QLC NVMe SSD differs significantly by offering 2TB of capacity using QLC NAND. It is designed for high-capacity archival storage rather than raw performance. This drive fits the M.2 2280 form factor but prioritizes space over speed. It is a suitable alternative for users who value large storage volumes for archival needs more than the high sequential read and write speeds of the SN850X. This option serves those who need more room for data without requiring the top-tier Gen4 performance characteristics of the original drive.
Quick picks
Our 7 picks
Sandisk WD_BLACK SN850X 1TB NVMe SSD
Best for: high-performance gaming PCs and workstation storage
- Storage Capacity
- 1TB
- Interface
- NVMe
- Form Factor
- M.2 2280
- Max Read Speed
- 7,300 MB/s
- Max Write Speed
- 6,300 MB/s
- Compatibility
- Gaming
View on Amazon: Sandisk WD_BLACK SN850X 1TB NVMe SSD Affiliate link
The SanDisk WD_BLACK SN850X 1TB NVMe SSD is an internal solid-state drive built on an M.2 2280 form factor. It uses TLC 3D NAND flash and delivers read speeds up to 7,300 MB/s along with write speeds up to 6,300 MB/s. These transfer rates handle high-demand workstations and fast load times. You get 1TB of storage for your gaming setup.
Pros
- Max read speeds up to 7,300 MB/s
- Max write speeds up to 6,300 MB/s
- Built with TLC 3D NAND flash
- Standard M.2 2280 form factor
Cons
- Manufacturer notes product is replaced by a newer generation
- Does not include an integrated heatsink
Good fit if
- You need read speeds reaching up to 7,300 MB/s for gaming or workstation tasks.
- You want an M.2 2280 SSD configured with TLC 3D NAND.
Skip if
- You want the manufacturer's newest generation hardware.
- You need a factory-installed heatsink for your slot.
Verdict: SanDisk WD_BLACK SN850X 1TB NVMe SSD offers read speeds up to 7,300 MB/s and write speeds up to 6,300 MB/s. It delivers reliable high-speed data transfer in a standard M.2 2280 format.
WD_BLACK SN770 1TB Gen4 NVMe SSD
Best for: mid-range PCIe Gen4 gaming and system drives
- Storage Capacity
- 1TB
- Interface
- PCIe Gen4
- Form Factor
- M.2 2280
- Max Read Speed
- 5,150MB/s
- Max Write Speed
- 4900MB/s
- Compatibility
- Gaming
View on Amazon: WD_BLACK SN770 1TB Gen4 NVMe SSD Affiliate link
The WD_BLACK SN770 1TB is a PCIe Gen4 internal SSD in the standard M.2 2280 form factor. It delivers sequential read speeds up to 5,150 MB/s and sequential write speeds up to 4,900 MB/s. It supports Microsoft DirectStorage for gaming setups and includes backward compatibility with PCIe Gen3 slots. This drive fits your build if you want solid Gen4 speeds for everyday gaming.
Pros
- Sequential read speeds up to 5,150 MB/s
- Sequential write speeds up to 4,900 MB/s
- Supports Microsoft DirectStorage technology
- Backward-compatible with PCIe Gen3 motherboards
Cons
- Lower read throughput than 7,000 MB/s Gen4 drives
- Management dashboard software is Windows only
- No heatsink included
Good fit if
- You want Gen4 transfer rates reaching up to 5,150 MB/s.
- You plan to use Microsoft DirectStorage for compatible PC games.
- You need backward compatibility for an existing PCIe Gen3 system.
Skip if
- You need top-tier PCIe Gen4 read speeds over 7,000 MB/s.
- You require an integrated heatsink for your installation.
Verdict: WD_BLACK SN770 1TB Gen4 NVMe SSD delivers balanced Gen4 storage with read speeds up to 5,150 MB/s and DirectStorage compatibility. It works well when your system does not require top-tier Gen4 sequential throughput.
WD_BLACK SN850X 1TB NVMe SSD with Heatsink
Best for: desktop gaming setups needing integrated drive cooling
- Storage Capacity
- 1TB
- Interface
- NVMe
- Form Factor
- M.2 2280
- Max Read Speed
- Up to 7,300 MB/s
- Max Write Speed
- Up to 6,300 MB/s
- Cooling
- Heatsink
View on Amazon: WD_BLACK SN850X 1TB NVMe SSD with Heatsink Affiliate link
You get an M.2 2280 NVMe solid-state drive built with an integrated heatsink for thermal management. It delivers sequential read speeds up to 7,300 MB/s and sequential write speeds up to 6,300 MB/s across a 1TB capacity. The drive measures 0.35 inches tall, requiring physical clearance in your system. This unit suits you if you need sustained high-speed data transfers for gaming PC setups or workstation applications without purchasing an aftermarket cooler.
Pros
- Up to 7,300 MB/s sequential read speed
- Up to 6,300 MB/s sequential write speed
- Integrated heatsink included for cooling
- Standard M.2 2280 form factor
Cons
- Replaced by newer generation SANDISK Optimus GX PRO 850X
- Heatsink increases drive height to 0.35 inches
Good fit if
- You need read speeds reaching up to 7,300 MB/s for gaming or workstation tasks.
- You want an included heatsink for built-in thermal cooling.
Skip if
- You require the latest generation hardware like the SANDISK Optimus GX PRO 850X.
- You lack the 0.35-inch vertical clearance required by the heatsink.
Verdict: Sandisk WD_BLACK SN850X 1TB Heatsink SSD provides up to 7,300 MB/s read speeds and built-in cooling for gaming setups. It remains a capable M.2 2280 option despite being superseded by newer product generations.
Gigastone Game Turbo 1TB NVMe SSD
Best for: high-speed PCIe 4.0 gaming and heavy workflows
- Storage Capacity
- 1TB
- Interface
- PCIe Gen4 x4
- Form Factor
- M.2 2280
- Max Read Speed
- 7,300MB/s
- Max Write Speed
- 6,800MB/s
- Cache Type
- SLC Cache
View on Amazon: Gigastone Game Turbo 1TB NVMe SSD Affiliate link
The Gigastone Game Turbo 1TB is a high-speed PCIe 4.0 M.2 2280 NVMe SSD built for desktops and laptops. It reaches sequential read speeds up to 7,300 MB/s and write speeds up to 6,800 MB/s using 3D NAND and SLC caching. Error correction via LDPC coding helps maintain data integrity. If you need fast Gen4 throughput for gaming or large graphic files, it delivers solid performance.
Pros
- Sequential read speeds reach up to 7,300 MB/s
- Sequential write speeds reach up to 6,800 MB/s
- Features SLC caching and LDPC error correction
- Five-year replacement warranty coverage
Cons
- No integrated heatsink included
- Relies on SLC caching without dedicated DRAM cache specified
Good fit if
- You need top-tier PCIe 4.0 sequential read speeds up to 7,300 MB/s.
- You want an M.2 2280 drive backed by a five-year replacement warranty.
Skip if
- You require an integrated heatsink for tight or low-airflow installations.
- You need next-generation PCIe 5.0 bandwidth.
Verdict: Gigastone Game Turbo 1TB NVMe SSD delivers fast PCIe 4.0 read speeds up to 7,300 MB/s with SLC caching for demanding PC tasks. It provides a direct high-speed Gen4 match for modern gaming rigs and workstations.
Sandisk WD_Black SN7100 1TB NVMe SSD
Best for: laptop and handheld gaming upgrades
- Storage Capacity
- 1TB
- Interface
- PCIe Gen4
- Form Factor
- M.2 2280
- Max Read Speed
- 7,250 MB/s
- Max Write Speed
- 6,900 MB/s
- Compatibility
- Laptop, Gaming
View on Amazon: Sandisk WD_Black SN7100 1TB NVMe SSD Affiliate link
The Sandisk WD_BLACK SN7100 is a PCIe Gen4 M.2 2280 internal solid-state drive with 1TB of storage. It uses TLC 3D NAND flash memory to deliver sequential read speeds up to 7,250 MB/s and write speeds up to 6,900 MB/s. Built for laptops and handheld gaming setups, this drive suits you if you need fast Gen4 storage without the bulk of an integrated heatsink.
Pros
- Sequential read speeds up to 7,250 MB/s and write speeds up to 6,900 MB/s
- TLC 3D NAND flash memory
- Compact M.2 2280 form factor suitable for laptops and handhelds
- Downloadable WD_BLACK Dashboard software support
Cons
- Does not include an integrated heatsink
- WD_BLACK Dashboard utility is limited to Windows systems
- Note indicates replacement by the newer Optimus GX 7100 line
Good fit if
- You want PCIe Gen4 read speeds reaching 7,250 MB/s with TLC 3D NAND.
- You need an M.2 2280 drive for a laptop or handheld gaming system.
- You run Windows and can utilize the WD_BLACK Dashboard.
Skip if
- You require an SSD with a pre-installed heatsink.
- You run macOS or Linux and require native dashboard software.
Verdict: Sandisk WD_BLACK SN7100 1TB NVMe SSD provides fast PCIe Gen4 transfer rates and TLC 3D NAND in a standard M.2 2280 format. It is a solid pick for laptop and handheld gaming upgrades that do not require an integrated heatsink.
Sandisk WD_Black 1TB PCIe 5.0 Heatsink SSD
Best for: PCIe 5.0 desktop gaming systems
- Storage Capacity
- 1TB
- Interface
- PCIe 5.0 x4
- Form Factor
- M.2 2280
- Max Read Speed
- Up to 14,900 MB/s
- Max Write Speed
- Up to 11,000 MB/s
- Cooling
- Anodized Aluminum Heatsink
View on Amazon: Sandisk WD_Black 1TB PCIe 5.0 Heatsink SSD Affiliate link
The Sandisk WD_Black SN8100 1TB Heatsink SSD is a PCIe 5.0 x4 internal drive in the standard M.2 2280 form factor. It delivers sequential read speeds up to 14,900 MB/s and sequential write speeds up to 11,000 MB/s using TLC 3D CBA NAND. It suits you if your motherboard supports PCIe Gen 5 and you want passive cooling via an integrated 0.44-inch anodized aluminum heatsink with customizable RGB lighting.
Pros
- PCIe 5.0 x4 interface reaching up to 14,900 MB/s sequential read speed
- Up to 11,000 MB/s sequential write performance on TLC 3D CBA NAND
- Integrated anodized aluminum heatsink for silent cooling with RGB lighting
- Includes Acronis True Image software for data migration
Cons
- Height of 0.44 inches prevents fitment in slim laptops or tight clearances
- SANDISK Dashboard drive monitoring software is Windows only
- Product line is noted as replaced by the Optimus GX PRO 8100 generation
Good fit if
- You have a compatible PCIe 5.0 M.2 slot ready on your motherboard.
- You want built-in heatsink cooling and RGB lighting in desktop builds.
- You require Gen 5 bandwidth for high-throughput gaming or content creation.
Skip if
- You need a compact drive for a laptop unable to clear 0.44 inches.
- You use macOS or Linux and require the proprietary dashboard software.
- You only have PCIe 4.0 slots and cannot access Gen 5 speeds.
Verdict: Sandisk WD_Black SN8100 1TB Heatsink SSD delivers PCIe 5.0 sequential read speeds up to 14,900 MB/s paired with an integrated passive cooler. It offers a significant bandwidth step above Gen 4 options if your hardware supports the newer interface.
Intel 660p 2TB QLC NVMe SSD
Best for: high-capacity archival storage
- Storage Capacity
- 2 TB
- Interface
- PCIe NVMe 3.0 x4
- Form Factor
- M.2 2280
- Max Read Speed
- 1800 MB/s
- Max Write Speed
- 1800 MB/s
- NAND Type
- QLC
View on Amazon: Intel 660p 2TB QLC NVMe SSD Affiliate link
This Intel 660p drive offers 2 TB of storage using QLC NAND technology. It connects via PCIe NVMe 3.0 x4 in an M.2 2280 form factor. Sequential read and write speeds reach 1800 MB/s. You get high capacity at a lower cost per gigabyte. This model suits you if you need bulk storage for media or archives. The QLC design makes it less ideal for heavy write workloads.
Pros
- 2 TB storage capacity
- QLC NAND technology
- PCIe NVMe 3.0 x4 interface
- 1800 MB/s sequential read speed
Cons
- Lower 1800 MB/s write speed compared to Gen4 rivals
- QLC NAND has lower endurance than TLC
- Slower PCIe 3.0 interface limits peak performance
Good fit if
- You need large storage for media libraries
- You prioritize capacity over maximum speed
- You use the drive for light workloads
Skip if
- You require Gen4 or Gen5 speeds
- You perform heavy video editing
- You need high endurance for constant writes
Verdict: Intel 660p 2TB QLC NVMe SSD provides ample space for archival needs. It fits users who value capacity more than raw performance.
Specifications side by side
| Spec | Sandisk WD_BLACK SN850X 1TB NVMe SSD | WD_BLACK SN770 1TB Gen4 NVMe SSD | WD_BLACK SN850X 1TB NVMe SSD with Heatsink | Gigastone Game Turbo 1TB NVMe SSD | Sandisk WD_Black SN7100 1TB NVMe SSD | Sandisk WD_Black 1TB PCIe 5.0 Heatsink SSD | Intel 660p 2TB QLC NVMe SSD |
|---|---|---|---|---|---|---|---|
| Storage Capacity | 1TB | 1TB | 1TB | 1TB | 1TB | 1TB | 2 TB |
| Interface | NVMe | PCIe Gen4 | NVMe | PCIe Gen4 x4 | PCIe Gen4 | PCIe 5.0 x4 | PCIe NVMe 3.0 x4 |
| Form Factor | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Max Read Speed | 7,300 MB/s | 5,150MB/s | Up to 7,300 MB/s | 7,300MB/s | 7,250 MB/s | Up to 14,900 MB/s | 1800 MB/s |
| Max Write Speed | 6,300 MB/s | 4900MB/s | Up to 6,300 MB/s | 6,800MB/s | 6,900 MB/s | Up to 11,000 MB/s | 1800 MB/s |
| Cache Type | not stated | not stated | not stated | SLC Cache | not stated | not stated | not stated |
| Cooling | not stated | not stated | Heatsink | not stated | not stated | Anodized Aluminum Heatsink | not stated |
| Compatibility | Gaming | Gaming | Gaming | Laptop, Desktop, Gaming | Laptop, Gaming | Gaming | not stated |
| NAND Type | not stated | not stated | not stated | not stated | 3D NAND, TLC | not stated | QLC |
| Size | 1TB | 1TB | 1TB | 1TB | 1TB | 1TB | 2 TB |
| Dimensions | 0.87 × 0.09 × 0.79 inches | 3.15 × 0.87 × 0.09 inches | 3.15 × 0.92 × 0.35 inches | not stated | not stated | 3.15 × 0.98 × 0.44 inches | 6.5 × 4.75 × 0.75 inches |
| Weight | not stated | not stated | 0.85 ounces | not stated | not stated | 1.1 ounces | 0.32 ounces |
| Length | not stated | not stated | not stated | not stated | 3.14 inches | not stated | not stated |
| Width | not stated | not stated | not stated | not stated | 0.86 inches | not stated | not stated |
| Color | Black | Black | Black | 1TB GAME TURBO PCIe 4.0 SSD 1-Pack | Black | Black | not stated |
| Model | WDS100T2X0E | WDS100T3X0E | WDS100T2XHE | GS-PCIe-SSD-Gen4-GT6470-1TB-1PK-R | WDS100T4X0E | WDS100T1XHM | SSDPEKNW020T8X1 |
If you need external storage instead of an internal drive, consider sandisk professional 1tb g drive armoratd alternatives.
Frequently asked questions
What is the fastest PCIe 5.0 alternative to the SN850X?
The Sandisk WD_Black SN8100 1TB Heatsink SSD is the fastest option, offering sequential read speeds up to 14,900 MB/s. It uses the PCIe 5.0 interface and includes an integrated passive cooler. This drive provides a significant bandwidth increase over Gen 4 drives, provided your motherboard supports the newer standard.
Which NVMe drive is best for laptops without a heatsink?
The Sandisk WD_BLACK SN7100 1TB NVMe SSD is ideal for laptop upgrades. It uses TLC 3D NAND and fast PCIe Gen4 transfer rates in a standard M.2 2280 format. You do not need an integrated heatsink, making it a solid choice for handheld gaming devices and thin laptops.
Is there a budget-friendly Gen4 SSD with a heatsink?
The Sandisk WD_BLACK SN850X 1TB NVMe SSD with Heatsink serves as a capable budget option. It provides up to 7,300 MB/s read speeds and includes built-in cooling. Although superseded by newer generations, it remains a reliable M.2 2280 choice for desktop gaming setups needing integrated drive cooling.
What is the best high-capacity QLC alternative for archival storage?
The Intel 660p 2TB QLC NVMe SSD is designed for high-capacity archival needs. It uses QLC NAND technology to provide ample space for users who prioritize storage volume over raw performance. This drive fits users who value capacity more than top-tier sequential read and write speeds.
Which SSD offers SLC caching for heavy workflows?
The Gigastone Game Turbo 1TB NVMe SSD features SLC caching for demanding PC tasks. It delivers fast PCIe 4.0 read speeds up to 7,300 MB/s. This drive provides a direct high-speed Gen4 match for modern gaming rigs and workstations that require sustained performance during heavy data transfers.
How does the SN770 compare to the SN850X for gaming?
The WD_BLACK SN770 1TB Gen4 NVMe SSD offers read speeds up to 5,150 MB/s, which is slower than the SN850X. It retains the M.2 2280 form factor and NVMe interface, ensuring broad compatibility. It works well when your system does not require top-tier Gen4 sequential throughput.