The best PCIe NVMe solid state drive depends on your system, capacity needs, and workload. The Samsung 990 PRO 2TB is best for high-performance gaming and demanding computing; the Acer Predator GM7 and SIX X7400 are 1TB options with stated gaming and expansion uses. The SanDisk Optimus 5100 1TB is suited to creators and portable-workflow needs, while its 500GB version is a smaller-capacity choice. Confirm that your device supports the drive’s M.2 form factor and PCIe generation before buying.
| Drive | Capacity | Best for | Stated maximum read speed |
|---|---|---|---|
| Samsung 990 PRO | 2TB | Heavy computing and gaming | 7,450 MB/s |
| Acer Predator GM7 | 1TB | Gaming and content creation | 7,400 MB/s |
| SIX X7400 | 1TB | Gaming and storage expansion | 7,350 MB/s |
| SanDisk Optimus 5100 | 1TB | Creative work and mobile use | 7,100 MB/s |
| SanDisk Optimus 5100 | 500GB | Smaller storage needs | Not specified for this capacity |
Samsung 990 PRO 2TB

Best for: Buyers who want a high-capacity PCIe 4.0 drive for gaming, heavy computing, or frequent transfers. Samsung lists sequential read and write speeds up to 7,450 MB/s and 6,900 MB/s, respectively. Its M.2 2280 form factor suits systems designed for that drive size.
The product description also highlights improved random performance compared with the 980 PRO and power efficiency. Choose this drive if both speed and 2TB of listed capacity matter. Maximum speeds are manufacturer figures; actual performance depends on the host system and workload. Check your device’s M.2 and PCIe requirements before purchase.
Acer Predator GM7 1TB

Best for: Gamers and creators seeking a 1TB PCIe 4.0 NVMe drive. The GM7 lists read speeds up to 7,400 MB/s and write speeds up to 6,500 MB/s. Its HMB and SLC cache are specified as performance features for loading games and transferring files.
The description also notes a controller and NAND design intended to reduce power consumption and heat. Choose this option if those stated features align with your workload. It is a 1TB drive, so avoid it if you need more capacity on the drive itself. Confirm your system supports M.2 2280 and PCIe Gen 4 x4.
SIX X7400 1TB With Heatsink

Best for: Buyers looking for a 1TB PCIe Gen 4 x4 drive that is marketed for laptop, desktop, or PS5 storage expansion. SIX lists read speeds up to 7,350 MB/s and describes the drive as suitable for gaming, content creation, and demanding applications. The product name specifies an included heatsink.
Choose this drive if the stated capacity, interface, and heatsink configuration suit your setup. The listing’s compatibility claims do not replace checking your particular device’s requirements. Avoid assuming it fits every laptop or console; verify physical clearance and supported SSD specifications before installation.
SanDisk Optimus 5100 1TB

Best for: Creators who want a 1TB M.2 2280 drive for applications and media files. SanDisk lists read speeds up to 7,100 MB/s for the 1TB model and write speeds up to 6,700 MB/s for 1TB models. The feature list describes a power-efficient design for mobile productivity and BiCS QLC 3D CBA NAND.
Choose this version if you want the listed 1TB capacity and creator-focused positioning. The advertised maximum speeds are not guarantees of everyday results. Confirm your computer supports PCIe 4.0 and M.2 2280 before selecting it.
SanDisk Optimus 5100 500GB

Best for: Buyers who need less storage than the 1TB option while keeping the same product family’s PCIe 4.0, M.2 2280 format. SanDisk describes the range as suitable for creator applications and storing high-resolution images and 4K video, with capacities from 500GB to 4TB.
The supplied feature details do not state maximum read or write speeds specifically for the 500GB model. Choose it if capacity is the priority; select a capacity with published speed details if you need to compare model-specific performance figures.
Buying Guide: How To Choose A PCIe NVMe SSD
Does your computer support M.2 NVMe?
Check the system manual or motherboard specifications for an M.2 slot that supports NVMe and the drive’s physical size. These products are M.2 2280 models. An M.2 slot alone does not establish that it supports NVMe or PCIe 4.0.
Do you need PCIe 4.0 speeds?
PCIe 4.0 drives can offer high sequential transfer speeds, but the host device must support the interface to take advantage of its capabilities. A drive’s listed maximum is not a guaranteed speed for every computer or task. Compare the interface, advertised read and write speeds, and your system’s supported generation.
How much capacity is practical?
Choose capacity according to the size of your operating system, applications, games, and work files. The listed options include 500GB, 1TB, and 2TB. Larger media libraries and game collections may call for more space, while lighter workloads may fit a smaller drive.
Should you prioritize heatsink or power features?
The SIX X7400 product name specifies a heatsink, while the SanDisk Optimus 5100 description emphasizes power efficiency. Check available space and your device’s cooling arrangement before choosing a heatsink-equipped drive. Compare the actual product configuration with the device maker’s installation guidance.
Frequently Asked Questions
What does NVMe mean in a solid state drive?
NVMe is a storage protocol used by solid state drives over PCIe. It is distinct from the M.2 form factor, which describes a physical drive format.
Will a PCIe 4.0 NVMe SSD work in any computer?
No. The computer needs a compatible M.2 slot and NVMe support. Check its specifications for drive size and PCIe generation.
Are advertised read speeds guaranteed?
No. Listed speeds are maximum manufacturer specifications. Actual results vary with the host system and workload.
Which drive in this list has the highest stated read speed?
The Samsung 990 PRO 2TB has the highest stated maximum read speed in this selection, at up to 7,450 MB/s.
Is a 1TB SSD enough for gaming?
It may suit a gaming library that fits within the available space. Consider game sizes and other files you plan to store before choosing capacity.