By Walter Jobs, Technology writer and editor · Published 9 October 2026
Short answer: press Windows+R, type dxdiag, press Enter. That one screen gives you processor, memory and graphics card in about four seconds, which is everything you need to look up whether your two main parts suit each other. The longer answer matters because Windows reports four of these numbers in a way that regularly misleads people, and if you are about to spend money on an upgrade you want to know which number you are actually reading.
The six methods, and when each one is the right one
Every guide lists these. Few say which to reach for, so here they are ranked by how fast they get you a usable answer, with the thing each one gets wrong.
| Method | How to open it | Best for | What it gets wrong |
|---|---|---|---|
| DirectX Diagnostic | Windows+R, dxdiag | Processor, memory and graphics in one screen | Rounds video memory, and on a laptop it often shows the integrated chip first |
| Settings, System, About | Windows+I, then System, then About | Processor name, installed memory, Windows edition | Does not name your graphics card at all |
| Task Manager, Performance | Ctrl+Shift+Esc, Performance tab | Memory speed, channel count, and live usage | Lists shared memory as if it were video memory |
| System Information | Windows+R, msinfo32 | Motherboard model, BIOS version, every device | Dense, and buries the graphics card three levels deep |
| Device Manager | Windows+X, then Device Manager | Confirming both graphics chips on a laptop | Names only, no performance figures or memory |
| PowerShell | Windows+X, then Terminal | Exact part numbers you can paste into a search | Nothing, which is why it is the one to use when the others disagree |
The PowerShell commands worth knowing
If any two methods above disagree, these settle it. They read the same data Windows reads, without the summarising that causes the trouble.
Get-CimInstance Win32_Processor | Select Name, NumberOfCores, NumberOfLogicalProcessors
Get-CimInstance Win32_VideoController | Select Name, AdapterRAM, DriverVersion
Get-CimInstance Win32_PhysicalMemory | Select Manufacturer, Capacity, Speed, DeviceLocator
Get-CimInstance Win32_BaseBoard | Select Manufacturer, ProductThe memory command is the useful one. It returns a row per stick, so the number of rows tells you how many modules are fitted, DeviceLocator tells you which slots they sit in, and Speed gives the rated figure rather than whatever the board defaulted to. Those three facts answer the dual channel question that Task Manager only hints at.
The four numbers Windows reports misleadingly
This is the part other guides skip, and it is the part that costs people money. Each of these has sent somebody to buy the wrong component.
1. Task Manager shows shared memory as video memory
Open Task Manager, go to Performance, click your GPU, and you will see two figures: dedicated GPU memory and shared GPU memory. Only the first is on the card. The second is ordinary system memory that Windows is willing to lend the graphics driver when the card runs out, and it is roughly half your installed RAM. A machine with 8 GB on the card and 32 GB of system memory will show 8 GB dedicated and 16 GB shared, and somebody reading quickly concludes they have 24 GB of video memory. They do not. Shared memory is reached across the PCIe bus at a fraction of the speed, and a game spilling into it is the stutter people describe as the game breaking rather than slowing down.
The number that matters for whether a game fits is the dedicated figure alone.
2. Installed RAM is not usable RAM
Settings reports something like “16.0 GB (15.8 GB usable)”. The gap is memory reserved by hardware, usually the integrated graphics on the processor, and it is normal. A gap of a few hundred megabytes is nothing to investigate. A gap of several gigabytes on a desktop with a separate graphics card is worth looking at, because it usually means a stick is seated badly or a memory limit has been set in system configuration.
3. DxDiag rounds video memory, sometimes badly
DxDiag computes an approximate total rather than reading the card’s own figure, and the result can be off by enough to matter. It is excellent for identifying which card you have and useless for deciding whether 8 GB is enough. Take the model name from DxDiag, then look the memory up by model.
4. Laptops have two graphics chips and report the wrong one
Almost every gaming laptop contains an integrated chip built into the processor and a separate, much faster one. Windows frequently names the integrated chip first because that is what is driving the desktop while nothing demanding is running. Open Device Manager, expand Display adapters, and count the entries. Two means you have a separate card and the second entry is the one your games should be using. If a game is slow and the task manager shows the integrated chip doing the work, that is a graphics settings problem, not a hardware one.
Laptop model names also carry a trap. A mobile graphics chip shares its name with the desktop version and is a materially slower part at a lower power limit. A card described as a laptop GPU is not the desktop card of the same name.
What each number actually means
Finding the specs is the easy half. Here is what to do with each one.
| Spec | What it governs | When it is the thing holding you back |
|---|---|---|
| Graphics card model | How many pixels get drawn per second | Nearly always, on a well built machine, and that is the correct outcome |
| Video memory on the card | Whether textures fit at your settings | When frame times spike rather than the average dropping |
| Processor model | The ceiling on frames per second, before the card is asked to draw anything | At high refresh rates and low resolutions, and in simulation heavy games |
| Core and thread count | How much the machine can do at once | Below six cores, and when streaming or recording alongside |
| Memory capacity | Whether the game and Windows both fit | Below 16 GB, where the symptom is hitching on area transitions |
| Memory speed and channels | How fast the processor is fed | Single channel costs real frames, often more than people expect |
| Storage type | Load times and texture streaming | Rarely for frame rate, often for the stutter when entering a new area |
The single channel check worth doing today
Open Task Manager, Performance, Memory, and look at the Slots used line. If it reads 1 of 2 or 1 of 4, every memory access is running through half the available width. On a prebuilt machine sold with a single 16 GB stick, adding a second matching stick is usually the cheapest meaningful upgrade available, and it costs less than almost anything else you could buy. This is a far more common finding than people expect, because fitting one stick is cheaper for the builder and invisible on a spec sheet.
Now put the two main numbers together
Once you have the processor and the graphics card, the useful question is not what each one scores on its own. It is whether one of them is wasting the other. A fast card behind a slow processor sits idle at low resolutions, and a fast processor behind a slow card does nothing at all. Those two situations call for completely different purchases.
Put both parts into the bottleneck calculator and it will tell you which one is the limit at your resolution, roughly what frame rate the pair should produce, and which single upgrade changes that. If you would rather read about your specific parts first, every card has a page under our graphics card database and every processor one under our processor database, each showing what it pairs with and when it is worth replacing.
If the specs you just found look weaker than you hoped, whether your PC is good enough for gaming works through what a given machine can realistically target at each resolution and refresh rate.
Frequently asked questions
What is the fastest way to find just my graphics card?
Windows+R, type dxdiag, press Enter, then click the Display tab. The card name is the first line. On a laptop check the second display tab as well, because the first is usually the integrated chip built into the processor rather than the faster separate card your games should be using.
Why does Windows say I have more video memory than my card has?
Because Task Manager adds shared memory to the total. Shared memory is ordinary system RAM that Windows lends the graphics driver when the card runs out of its own, and it is reached over the PCIe bus at a small fraction of the speed of memory on the card. Only the dedicated figure counts when you are deciding whether a game fits at your settings.
How do I check whether my RAM is running in dual channel?
Task Manager, Performance tab, Memory. The Slots used line tells you how many modules are fitted. One stick in a two or four slot board means single channel, which costs frames in processor limited games. For the rated speed of each stick rather than the speed the board chose, run Get-CimInstance Win32_PhysicalMemory | Select Speed, DeviceLocator in Terminal.
Do I need third party software to read my specs?
No. Everything on this page uses tools already installed in Windows 11. Third party monitoring tools are genuinely better for live temperatures, clock speeds and per core load while a game runs, which is a different job from identifying what is fitted. For identification, the built in tools are sufficient and there is nothing to install or trust.
My laptop says it has an RTX 4060, so is it the same as a desktop RTX 4060?
No. A mobile graphics chip carries the same model name as the desktop part while being a different, slower configuration running at a lower power limit, and laptop makers set that limit differently from model to model. Two laptops with identical names on the box can differ noticeably in frame rate. Treat the name as a family rather than a specification.
The spec reading methods on this page were checked against Windows 11. Where this article describes what a number means for frame rate, that interpretation comes from our own model rather than from measurement on your machine, and how we calculate this sets out the method and its limits.