Site speed starts with the server’s disk. It determines how fast files are served, how quickly database queries run and how the admin panel opens. All CloudAxis web hosting servers run on flagship Samsung PM9A1 NVMe drives — and the difference from “just an SSD” is measured not in percentages but in multiples.
Why disk speed matters at all
When a visitor opens a page, the server has to read dozens or even hundreds of small files (PHP, images, styles) from disk and run database queries. Here what matters most is not so much “sequential” speed as IOPS — the number of input/output operations per second and access latency. The more IOPS and the lower the latency, the faster the server handles many users’ parallel requests.
For a site this directly affects TTFB (time to first byte), page open speed and behavior under load. Speed, in turn, affects Google rankings: search favors fast sites.
HDD vs SSD vs NVMe vs PM9A1 — specifications
| Metric | HDD 7200 | SATA SSD | NVMe PCIe 3.0 | Samsung PM9A1 |
|---|---|---|---|---|
| Sequential read | ~180 MB/s | ~550 MB/s | ~3,500 MB/s | up to 7,000 MB/s |
| Sequential write | ~120 MB/s | ~520 MB/s | ~3,000 MB/s | up to 5,000 MB/s |
| Random IOPS (read) | ~200 | ~95,000 | ~450,000 | up to 1,000,000 |
| Access latency | ~8–12 ms | ~0.1 ms | ~0.05 ms | ~0.02 ms |
| Interface | SATA | SATA III | PCIe 3.0 | PCIe 4.0 |
Typical values for each disk class and the datasheet specs of the Samsung PM9A1 (PCIe 4.0) are shown. Real site speed also depends on CPU, network and optimization, but the disk is the foundation.
Why PM9A1 is better than a “regular” NVMe
It’s important to understand: not all NVMe drives are equal. Budget NVMe drives use the PCIe 3.0 interface, often without their own DRAM cache and on cheap QLC memory — their speed drops noticeably under load. The Samsung PM9A1 is a server-grade flagship on PCIe 4.0:
- PCIe 4.0 interface — twice the bandwidth of PCIe 3.0
- Up to 7,000 MB/s read and up to 1,000,000 IOPS — many times higher than regular NVMe
- Its own DRAM cache and reliable TLC V-NAND — stable speed under load, not just in peak tests
- High write endurance (TBW) and integrity control — designed for round-the-clock server operation
What it means for your site on CloudAxis
In practice, moving from a regular SSD to PM9A1 is felt immediately: the WordPress admin stops “thinking”, pages and store catalogs open instantly, and the site handles bursts of visitors without slowdowns. This is especially noticeable on heavy CMS and databases, where every click is dozens of small disk operations.
- Faster TTFB and page opening — better for visitors and SEO
- Stable database operation even on large catalogs
- The admin and control panel respond without delay
- A performance reserve for peak loads and sales
How is NVMe different from SSD?
SATA SSD and NVMe are both solid-state, but SATA SSD is limited by the old interface (~550 MB/s), while NVMe works directly over the PCIe bus and delivers many times higher speeds and IOPS. NVMe is the next generation after a regular SSD.
How much faster is PM9A1 than a regular NVMe?
PM9A1 runs on PCIe 4.0 and delivers up to 7,000 MB/s read and up to 1M IOPS — roughly twice a typical PCIe 3.0 NVMe and many times more than a SATA SSD. Most importantly, it holds this speed under load thanks to DRAM cache and TLC memory.
Will I notice the difference on my site?
Yes, especially on CMS like WordPress or OpenCart and on sites with a database. A fast disk shortens server response time, so pages and the admin open noticeably faster and the site handles load better.
Which plans use PM9A1 disks?
All CloudAxis web hosting servers run on Samsung PM9A1 NVMe drives — regardless of the chosen plan. You get flagship disk speed even on the entry plan.
Feel the speed of NVMe PM9A1
All CloudAxis plans run on flagship Samsung PM9A1 disks, with free SSL and site migration. Launch your site on fast hosting.
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