TestLap
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Online system information

Read what the browser knows about the machine: CPU, GPU, RAM, display and OS, and compare it with what the seller claims.

Browsers only expose part of the hardware details. For the full picture use dxdiag as described below.

Runs entirely in your browser. No data, images or audio are ever uploaded.

How to test in 3 steps

  1. 1

    Read the table below

    The page reads what the browser is allowed to know: CPU threads, GPU, estimated RAM, display and operating system.

  2. 2

    Compare with the advertised spec

    Pay most attention to the GPU line: a laptop sold with a dedicated GPU that only shows Intel UHD or Radeon Graphics needs a closer look.

  3. 3

    Cross-check in the OS

    Press Win + R and run dxdiag to see the full CPU name, exact RAM and graphics card model.

Full specs in Windows in 20 seconds

  1. Press Win + R, type dxdiag, Enter. The System tab lists the CPU, RAM and BIOS. The Display tab lists the graphics card and its VRAM.
  2. Or press Ctrl + Shift + Esc for Task Manager → Performance: CPU (name, cores, speed), Memory (size, slots, speed), Disk (SSD or HDD), GPU 0 and GPU 1.
  3. Screenshot dxdiag and compare it with the listing. A mismatch in CPU, RAM or graphics card is reason enough not to buy.

Specs most often misrepresented on used laptops

  • Dedicated GPU: the listing says GTX or RTX but the machine only has Intel Iris, or the dedicated GPU is dead or disabled in BIOS.
  • CPU generation: "Core i5" that turns out to be a 4th-gen i5 from 2014, far slower than an 11th or 12th-gen i5. Look up the full name in the laptop CPU benchmark table.
  • Storage: sold as SSD but actually an HDD, or a tiny SSD paired with an old HDD. Check Task Manager → Performance → Disk.
  • RAM: sold as 16 GB but one module is dead and only 8 GB is detected.
  • After checking the specs, run the dead pixel test and the battery check.

Frequently asked questions

Why is the full CPU name not shown?+

Browsers deliberately hide the CPU name and exact RAM to prevent tracking. You only get the thread count and RAM rounded to at most 8 GB. For full details open dxdiag or Task Manager → Performance.

Does 8 threads mean an 8-core CPU?+

Not necessarily. It is the number of threads. A 4-core / 8-thread CPU also shows 8. High-performance CPUs usually have 12–20 threads. Look the CPU up in the benchmark table for exact figures.

The GPU says "Intel(R) UHD Graphics…". What is that?+

The integrated graphics inside the CPU, which the browser is currently using. A laptop with a dedicated NVIDIA GPU can still show Intel because Windows prefers the integrated GPU for browsers to save power. Verify with dxdiag or Task Manager → Performance → GPU 1.

RAM shows 8 GB but the laptop is sold as 16 GB+

Browsers cap the reported value at 8 GB. Open Task Manager → Performance → Memory to see the real amount and how many slots are used.

Resolution shows 1536×864 but the screen is Full HD+

Windows is scaling at 125%. The page also shows the native resolution multiplied by the scale factor on the line below.