If your multi-gig speed test shows only 940 Mbps, you likely have a hardware bottleneck. To see 2.5 Gbps or higher, your entire chain must be multi-gig compatible:
: Known for its detailed insights into "bufferbloat" and consistency, it is often cited as being more accurate for high-end fiber lines than some traditional web tests. Hardware Requirements for Accurate Results multi gig speed test
At its core, a speed test—whether using Ookla, Fast.com, or Cloudflare—measures the maximum throughput between your device and a strategically chosen server. For a multi-gig connection (exceeding 1 Gbps), this test creates a sterile, idealized environment. The test server is typically located within the ISP’s own backbone network or a nearby peering exchange, specifically optimized for high-bandwidth, low-latency transfers. It is the digital equivalent of a dyno test for a sports car: it measures the engine’s peak horsepower in a vacuum, not its performance in rush-hour traffic. The result—a satisfying 4,200 Mbps download—confirms that the ISP has delivered the theoretical bandwidth to your modem. But it tells you nothing about the real-world journey of a packet from a server in Tokyo to your smartphone. If your multi-gig speed test shows only 940