Once a browser has branched into dozens of versions, what really shapes daily use is whether the engine keeps up, and whether old sites still open.

The 64-bit part and the dual-core part

360 Extreme Browser X is a 64-bit dual-core browser from 360. The official product page opens its performance section with the kernel version, Chromium 132, then gives the 64-bit dual-core positioning, and says overall performance can improve by up to 50 percent against a traditional 32-bit build. That sentence carries two separate facts: the architecture moved to 64-bit, and the engine caught up to a newer release.

The optimisations are then broken down. On memory, the page describes disabling unnecessary extensions and plugins to compress the footprint, and claims a 30 percent improvement in browsing speed. On startup, it describes reaching a usable state faster after clicking the icon. A separate passage covers parsing pages loaded with images, video or scripts. Together the three map onto the three waits people run into most.

The core that keeps old sites working

Dual-core mode solves a different kind of trouble. Officially the browser supports dual-core mode for compatibility with office OA systems, and specifically keeps IE mode. For anyone who moves between online banking, government and enterprise intranets and legacy office systems, that point usually means more than a benchmark score, because the real fear is not slowness but a page that simply refuses to open.

Interface and companion features follow familiar patterns. The page groups a clean interface with homepage customisation and an extension centre, where it says Chrome extensions can be installed and gives the scale of the available catalogue. The password manager saves credentials on first login and fills them in automatically on return visits, so nothing has to be typed twice.

The small tools you end up using

Private browsing is an explicitly listed feature, described as not saving browsing history, search records or cookies, which suits a borrowed machine or sensitive business. Bookmarks and extensions can sync to the cloud, which the page uses to explain consistency across devices: open on another computer and the bookmarks and installed extensions are already there.

The feature list also carries a batch of small tools: sleeping tabs and a power saving mode to cut the cost of pages left open, a split screen for two pages side by side, a reading mode that pulls out the body text, plus screenshot, translation, a downloader, night mode, mouse gestures and a web recycle bin. Video pop-out lets a video shrink into a small window that can sit in a corner while you work. On version, the 64-bit installer on the official download page carries 23.1.1253.64 in its filename, which is also the current release number.

The more a browser can do, the more someone needs to set the defaults so they stop interrupting.

Practical notes. Install Chrome extensions before looking at other plugins, since compatibility is steadiest there. If you rely on legacy office systems, pin IE mode to the specific domains that need it instead of switching by hand. And when tabs pile up, turn on sleeping tabs, which is less work than closing them one by one.