device
How many cores and how much RAM does my computer have
How many CPU cores and how much RAM your device has.
Hardware data is read locally in your browser. Nothing is sent to our servers.
Solutions that can help in your case
Other tools
Device Info
Overview: battery, network, and hardware — with links to specialized tools.
Display & System
Resolution, viewport, OS, language, timezone, and theme — read in your browser.
Battery Level
See your laptop or phone battery level in real time.
Connection Type
Find out if you're on 4G, 5G, Wi-Fi, or a slow connection.
How RAM and CPU core detection works
We read navigator.hardwareConcurrency (logical cores the browser exposes) and, when available, navigator.deviceMemory (a privacy-bucketed RAM estimate in gibibytes).
These APIs exist to help sites adapt workload — not to replace system profilers. Privacy modes often force low fake values (for example 2 cores and 0.5–8 GB).
How to interpret the numbers
Open: The page reads hardware APIs automatically.
Cores: Check hardwareConcurrency in the panel.
RAM: Read the estimate when the browser exposes deviceMemory.
Confirm: Verify with OS tools before buying upgrades.
Is your PC slow from low memory or few cores?
Tabs freeze, IDEs stutter, and games hitch when RAM is full or the CPU is underpowered for the workload. People often blame “the internet” when the machine is the bottleneck.
This page gives an honest browser view. If values look absurdly low on a known powerful machine, treat them as privacy-limited. Confirm with OS tools (About This Mac, Task Manager, System Monitor).
Tips to feel faster without guessing
- Close heavy browser tabs and Electron apps before blaming the CPU.
- If you still use a spinning HDD, move to NVMe SSD first — biggest everyday win.
- Add RAM when you multitask (browser + IDE + calls) and the OS reports pressure.
- On laptops, check thermal throttling: dust and soft surfaces raise temps.
- Disable startup junk and browser extensions you do not use.
- For creative work, prefer more RAM; for light web use, storage speed often matters more.
- Do not trust web tools that invent exact “16.00 GB” on every MacBook.
- Re-test after privacy extensions change — readings can jump.
Logical cores vs physical cores
hardwareConcurrency counts logical processors visible to the page (including hyperthreads when exposed). It is not a full topology map of performance vs efficiency cores on modern chips.
Use it to gauge parallel capacity for web workers — not as a full CPU model name.
Why RAM is an estimate
deviceMemory intentionally rounds and caps values to reduce fingerprinting. A 16 GB machine may show 8 GB. Privacy mode may show ~1–2 GB.
For purchases and upgrades, trust the OS or the manufacturer spec sheet.
SSD vs RAM: what to buy first
If the drive is an old HDD, SSD almost always transforms boot and app open times. Extra RAM helps when many apps stay open or large projects load.
Measure symptoms: constant disk activity → storage; constant memory pressure → RAM.
Limits of any browser hardware tool
Web apps cannot run a full system profiler. We refuse to invent cores or RAM. Honest “unavailable” beats fake precision for SEO trust and user decisions.
When hardware upgrades pay off
If OS tools confirm low RAM or a slow drive, upgrades beat another “cleaner” app. Prefer reputable RAM/SSD kits compatible with your exact model.