KIOXIA or GIGABYTE? Nvme SSDs Compared in 2026
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This KIOXIA vs GIGABYTE nvme SSD comparison looks at two 1TB drives for gaming and PC use. Both offer M.2 storage, but they differ in generation and architecture. The KIOXIA Exceria G3 uses PCIe 5.0 and QLC NAND. The GIGABYTE AORUS relies on PCIe 4.0 with TLC NAND and a DDR cache. You need to decide if newer interface speeds or established caching matters more for your workflow.
Key differences
| Aspect | KIOXIA Exceria 1TB PCIe 5.0 SSD | GIGABYTE AORUS 1TB PCIe 4.0 NVMe SSD |
|---|---|---|
| Interface | PCIe 5.0 Gen5 x4 | PCIe 4.0 x4 |
| NAND Type | 3D QLC | 3D TLC |
| Cache | not listed | DDR4 1 GB |
| Max Read Speed | not listed | Up to 5000 MB/s |
| Random Read IOPS | Up to 1,600,000 | 750,000 |
Which one should you choose?
Choose KIOXIA Exceria 1TB PCIe 5.0 SSD if
- You want the latest PCIe 5.0 interface for future-proofing.
- You prioritize high random read IOPS for fast system responsiveness.
- You prefer QLC NAND for higher storage density in a compact drive.
Choose GIGABYTE AORUS 1TB PCIe 4.0 NVMe SSD if
- You need a dedicated DDR4 cache buffer for consistent performance.
- You prefer TLC NAND over QLC for potentially better endurance.
- You are using a PCIe 4.0 system and want a proven, high-speed option.
Verdict: The KIOXIA Exceria G3 suits users seeking the newest PCIe 5.0 interface and high random access speeds. The GIGABYTE AORUS is better for those who value a dedicated DDR cache and TLC NAND on a PCIe 4.0 platform. Your choice depends on whether you prioritize interface generation or caching architecture.
KIOXIA vs GIGABYTE SSD Specs
Interface generation
The KIOXIA Exceria G3 uses a PCIe 5.0 Gen5 x4 interface, offering a newer pathway for data transfer compared to the GIGABYTE AORUS. The GIGABYTE drive relies on PCI-Express 4.0 x4. While both support NVMe protocols, the KIOXIA’s Gen5 connection provides a wider bandwidth ceiling. This means the KIOXIA is built for future-proofing and higher potential throughput, whereas the GIGABYTE operates on the established Gen4 standard. You get the latest interface with the KIOXIA, while the GIGABYTE sticks to the previous generation.
NAND flash type
NAND type affects density and endurance. The KIOXIA Exceria G3 utilizes BiCS Flash 3D QLC NAND, which allows for higher storage density in a compact form. In contrast, the GIGABYTE AORUS employs 3D-TLC NAND Flash. TLC NAND is generally known for better performance consistency and endurance compared to QLC. If you prioritize long-term reliability and consistent write speeds, the GIGABYTE’s TLC choice is the stronger option. The KIOXIA offers higher density storage, but the GIGABYTE provides a more traditional NAND architecture.
Cache type
Cache helps manage data flow and improves random access speeds. The GIGABYTE AORUS includes an external DDR4 1 GB cache buffer, which is a significant advantage for handling large files and complex workloads. The KIOXIA Exceria G3 specifications do not list an external cache component. Without explicit data on KIOXIA’s caching, the GIGABYTE’s dedicated DDR4 buffer offers a clear architectural benefit for sustained performance. You get a tangible hardware advantage in data management with the GIGABYTE drive.
Sequential read speed
Sequential read speed impacts how fast you load games and large files. The GIGABYTE AORUS lists a max read speed of up to 5000 MB/s. The KIOXIA Exceria G3 does not provide a specific sequential read number in its published specs, only IOPS figures. Because the GIGABYTE explicitly states its throughput capability, it offers a verifiable speed benchmark for your purchasing decision. The KIOXIA’s lack of a stated MB/s figure makes direct comparison difficult, giving the GIGABYTE the edge in transparent speed metrics.
Random IOPS
Random IOPS measure responsiveness for system tasks and game loading. The KIOXIA Exceria G3 claims up to 1,600,000 IOPS random read and 1,450,000 IOPS random write. The GIGABYTE AORUS lists 750K random read and 700K random write IOPS. The KIOXIA’s figures are significantly higher, suggesting faster system responsiveness and quicker load times for smaller files. If your workflow relies heavily on random access, the KIOXIA provides superior raw processing power according to its specifications.
Which SSD matches your system specs
Users with a PCIe 5.0 motherboard
The KIOXIA Exceria G3 supports PCIe 5.0 Gen5 x4, allowing you to utilize the latest interface for higher bandwidth. It delivers up to 1,600,000 random read IOPS, ensuring fast load times. This drive is ideal if your system supports the newer generation and you want maximum theoretical throughput for gaming and professional workflows.
Gamers needing external cache stability
The GIGABYTE AORUS includes a 1 GB DDR4 external cache buffer, which helps maintain consistent performance during heavy data transfers. It uses 3D TLC NAND, often preferred for endurance over QLC. With sequential read speeds up to 5000 MB/s, this drive offers reliable, high-performance gaming storage for systems that do not yet support PCIe 5.0.
Budget-conscious builders on a budget
The GIGABYTE AORUS provides established PCIe 4.0 performance with a Phison E16 controller. It offers 1 TB of storage with proven TLC NAND technology. This configuration is suitable if you prioritize known reliability and standard interface compatibility over the cutting-edge but potentially more expensive PCIe 5.0 options available in the current market.
The products compared
KIOXIA Exceria 1TB PCIe 5.0 SSD
Best for: Next-gen gaming PCs needing PCIe 5.0 speed
- Storage Capacity
- 1TB
- Interface
- PCIe 5.0 Gen5 x4
- Form Factor
- M.2 2280
- Compatibility
- Gaming
- Dimensions
- 5.91 × 5.91 × 7.87 inches
View on Amazon: KIOXIA Exceria 1TB PCIe 5.0 SSD Affiliate link
This KIOXIA Exceria G3 is a 1TB NVMe drive built for high-speed performance. It uses PCIe 5.0 Gen5 x4 interface technology. The drive delivers up to 1,600,000 IOPS random read speeds. It relies on BiCS Flash 3D QLC NAND for dense storage. You will find it in a standard M.2 2280 form factor. This makes it suitable for gaming and professional workflows.
Pros
- PCIe 5.0 Gen5 x4 interface for high bandwidth
- Up to 1,600,000 IOPS random read performance
- Uses advanced BiCS Flash 3D QLC NAND
- Compact M.2 2280 form factor
Cons
- QLC NAND may have lower endurance than TLC
- No thermal heatsink included in the package
- No software management tools mentioned in data
Good fit if
- You need the latest PCIe 5.0 speed
- You want high random read performance
- You are building a modern gaming PC
Skip if
- You require PCIe 4.0 compatibility only
- You need included thermal protection
- You prioritize long-term write endurance over speed
Verdict: KIOXIA Exceria G3 1TB PCIe 5.0 SSD offers top-tier PCIe 5.0 speeds for users who need maximum responsiveness. It fits those building next-generation systems who prioritize raw IOPS over included accessories.
GIGABYTE AORUS 1TB PCIe 4.0 NVMe SSD
Best for: Gaming systems using PCIe 4.0 motherboards
- Storage Capacity
- 1 TB
- Interface
- NVMe 1.3, PCI-Express 4.0 x4
- Max Read Speed
- Up to 5000 MB/s
- Max Write Speed
- Up to 4400 MB/s
- Cache Type
- DDR4 1 GB
- Form Factor
- M.2
View on Amazon: GIGABYTE AORUS 1TB PCIe 4.0 NVMe SSD Affiliate link
This GIGABYTE drive uses a Phison E16 controller and 3D TLC NAND to deliver sequential read speeds up to 5000 MB/s and write speeds up to 4400 MB/s. It includes a 1 GB DDR4 external cache buffer to help manage data efficiently. The M.2 form factor fits standard slots, making it suitable for gaming systems that benefit from fast load times and consistent performance under load.
Pros
- PCIe 4.0 x4 interface for high bandwidth
- 1 GB DDR4 external cache buffer
- Phison E16 controller for reliable performance
- 3D TLC NAND flash memory
Cons
- Slower than the PCIe 5.0 Gen5 option on this list
- No included thermal heatsink in the data
- Heavier than typical M.2 drives at 3.64 pounds
Good fit if
- You need a PCIe 4.0 SSD with dedicated DRAM cache
- You are building a gaming PC that supports Gen4 drives
- You want 3D TLC NAND for balanced endurance
Skip if
- You require the fastest PCIe 5.0 speeds available
- You are installing the drive in a tight slot without space for bulk
- You prefer a drive with an integrated heatsink
Verdict: GIGABYTE AORUS 1TB PCIe 4.0 SSD offers strong Gen4 performance with a dedicated cache buffer, making it a solid choice for gamers who do not need PCIe 5.0 speeds.
Specifications side by side
| Spec | KIOXIA Exceria 1TB PCIe 5.0 SSD | GIGABYTE AORUS 1TB PCIe 4.0 NVMe SSD |
|---|---|---|
| Storage Capacity | 1TB | 1 TB |
| Interface | PCIe 5.0 Gen5 x4 | NVMe 1.3, PCI-Express 4.0 x4 |
| Form Factor | M.2 2280 | not stated |
| Max Read Speed | not stated | Up to 5000 MB/s |
| Max Write Speed | not stated | Up to 4400 MB/s |
| Cache Type | not stated | DDR4 1 GB |
| Compatibility | Gaming | Gaming |
| NAND Type | not stated | TLC |
| Dimensions | 5.91 × 5.91 × 7.87 inches | 5.12 × 3.15 × 1.18 inches |
| Weight | not stated | 3.64 pounds |
| Size | 1 To | not stated |
| Model | EXCERIA G3 | GP-AG41TB |
| Color | not stated | Black |
Frequently asked questions
Which SSD is better for a PCIe 5.0 motherboard?
The KIOXIA Exceria G3 is the better choice for systems with PCIe 5.0 motherboards. It utilizes a PCIe 5.0 Gen5 x4 interface, which provides higher bandwidth than the GIGABYTE AORUS. This allows you to access the latest speed capabilities for gaming and data transfer.
Does the GIGABYTE AORUS use a cache buffer?
Yes, the GIGABYTE AORUS SSD includes a dedicated cache buffer. This feature helps maintain consistent performance during heavy workloads. It makes this drive a solid option for gamers who prioritize stable speeds over the absolute maximum throughput of PCIe 5.0 drives.
What NAND type does the GIGABYTE drive use?
The GIGABYTE AORUS SSD uses TLC NAND. This type of NAND flash memory generally offers a good balance between performance and endurance. It supports the drive’s NVMe protocol and PCIe 4.0 interface for reliable gaming system operation.
How do the physical dimensions compare?
The KIOXIA Exceria G3 is notably thinner, measuring 0.09 inches in height. The GIGABYTE AORUS is thicker at 1.18 inches and longer at 5.12 inches. You should check your case or motherboard M.2 slot clearance to ensure the larger GIGABYTE drive fits properly.
Is the KIOXIA drive suitable for next-gen gaming?
Yes, the KIOXIA Exceria G3 is designed for next-generation gaming PCs. It offers top-tier PCIe 5.0 speeds and high random read IOPS. This ensures fast load times and maximum responsiveness for users building the latest high-performance gaming systems.
Which drive is better if I do not need PCIe 5.0?
If your system does not support PCIe 5.0, the GIGABYTE AORUS is a strong choice. It provides robust PCIe 4.0 performance with a dedicated cache buffer. You get reliable speeds without paying for interface capabilities your motherboard cannot utilize.
Does the KIOXIA drive come with accessories?
The product data does not list included accessories for the KIOXIA Exceria G3. It is positioned as a drive for users who prioritize raw performance specifications. You may need to source mounting hardware separately if your motherboard does not include an M.2 heatsink or screw.