To understand the speed of Shadow PC, one must first understand the hardware being tested. While local setups vary wildly, Shadow offers a standardized baseline: typically a dedicated Nvidia Tesla GPU (often equivalent to a GTX 1080 or RTX 2080), a modern Intel Xeon or AMD Ryzen CPU, and 12GB to 16GB of RAM. The critical variable in this speed test is not the silicon, but the internet connection. Shadow PC requires a stable fiber or high-speed cable connection to function as intended.

However, the speed of Shadow PC is entirely dependent on the speed of the user's internet connection. It transforms the computer into a service, where network stability is as crucial as the CPU clock speed. For users with gigabit fiber and Ethernet access, Shadow PC passes the speed test with flying colors, effectively functioning as a high-end gaming rig in the cloud. For those on unstable connections, the speed of the hardware is rendered moot by the latency of the network. Ultimately, Shadow PC proves that while the cloud can match the speed of local hardware, it cannot yet fully escape the physics of distance.

: This is the most critical metric for gaming. An ideal ping is 30 ms or less . Once latency exceeds 35–40 ms , most users will notice a "heavy" feel to their controls (input lag).

The most critical metric for any cloud computer is latency, often referred to as "input lag." This is the time it takes for a user's mouse click to register on the remote server and for the resulting visual change to travel back to the user's screen. In speed tests conducted via Ethernet, Shadow PC demonstrates remarkable efficiency. With a server location within 500 miles of the user, average input latency hovers around 20 to 30 milliseconds.