CPI vs DPI: What's the Difference?
The short answer: nothing. CPI (counts per inch) and DPI (dots per inch) describe the same measurement — how many pixels your cursor moves per inch of physical mouse motion.
The technical distinction (that doesn't matter)
Strictly speaking, DPI is a printer/scanner specification — how many dots of ink a printer places in an inch. CPI is the correct term for mice — how many sensor "counts" are produced per inch of motion.
But because marketing departments like round numbers, and "DPI" rolls off the tongue, both terms get used interchangeably. A "1600 DPI mouse" and a "1600 CPI mouse" produce identical cursor movement.
What does it actually mean?
A 1000 CPI mouse moves the cursor 1000 pixels when you move it 1 inch (2.54 cm) physically. At 1600 CPI, 1 inch moves the cursor 1600 pixels. Higher number = more sensitive.
On modern high-refresh monitors, sensitivity is personal preference. Most competitive FPS players use 400–800 CPI. Casual users typically 800–1600. Productivity users with multi-monitor setups may go higher (2000+) to reduce arm motion across screens.
The marketing trap
Some manufacturers brag about 30,000+ CPI sensors. In reality:
- Most operating systems and games don't benefit from CPI above ~3000.
- Windows has a cursor acceleration setting that complicates things further.
- Higher CPI without a faster sensor = jitter and inconsistent tracking.
- Sensor quality at any CPI matters more than max CPI.
Flagship sensors (HERO 2, Focus Pro 30K, PixArt PMW3950) are accurate across their entire range. Cheap sensors become erratic above 5000–8000 CPI.
What "true CPI steps" means
Some mice only have a few CPI options (e.g., 400, 800, 1200, 1600, 3200). These are typically rounded to convenient numbers from the sensor's native resolution. Premium mice like the Logitech G Pro X Superlight 2 and Razer DeathAdder V3 Pro let you set any value in 50 or 100 CPI increments via software.
The 1:1 setting and why it matters
In most games, "1:1" means moving the mouse 1 inch moves your view by some fixed amount that matches your in-game sensitivity. Windows mouse acceleration interferes with this. To get true 1:1 tracking:
- Disable "Enhance pointer precision" in Windows mouse settings.
- Set raw input in your game (most competitive games have this option).
- Set your in-game sensitivity to a value that feels right for your CPI.
Finding your ideal sensitivity
There's no universal best — it depends on your hand size, grip, and mousepad size. A common starting point for FPS games is:
- Low sens (1:1, 40cm/360°): 400 CPI at 2.0 in-game sens, or 800 CPI at 1.0 in-game sens. Best for tracking and consistency.
- Medium sens (20cm/360°): 800 CPI at 1.0 in-game sens, or 1600 CPI at 0.5 in-game sens. Best for general play.
- High sens (10cm/360°): 1600 CPI at 0.5 in-game sens. Best for fast flicks and 180° turns.
Use an aim trainer (Aim Lab, Kovaak's) to dial in your sensitivity. Spend at least a week with any setting before deciding.
Verify your CPI is what you set it to
Some mice misreport their CPI when set to certain values, especially under load. To verify:
- Open a pixel-measuring tool or use Mouse Sensitivity online tool.
- Set your mouse to a known CPI (e.g., 1000).
- Move the mouse exactly 1 inch (use a ruler).
- Verify the cursor moved ~1000 pixels.
If it's off by more than 5%, your mouse may have a sensor issue or driver misconfiguration.
Recommended mice with reliable CPI
| Mouse | Sensor | CPI Range |
|---|---|---|
| Logitech G Pro X Superlight 2 | HERO 2 | 100–44,000 |
| Razer DeathAdder V3 Pro | Focus Pro 30K | 100–30,000 |
| Zowie EC2-CW | 3360 | 400 / 800 / 1600 / 3200 (preset) |
| Endgame Gear OP1 8k | PMW3950 | 50–42,000 |
Prices were last checked in October 2026 and change often. Always confirm the current price with the retailer before buying.
The takeaway
CPI and DPI are the same thing. Don't pay extra for high max CPI numbers — what matters is accuracy and consistency at the CPI you'll actually use. Most competitive players use 400–800 CPI; pick a value, disable mouse acceleration, and stick with it.
Test your mouse setup: Polling Rate · CPS · Latency.
Once you have your sensitivity settled, our best mouse for FPS games guide covers which shapes and weights suit competitive play. Our best gaming mouse 2026 roundup ranks every pick we recommend.
Related guides
Frequently asked questions
Is there any difference between CPI and DPI?
Effectively, no. Both terms describe how many counts the sensor reports per inch of physical movement. Modern gaming mice use sensors that are accurate in both units, and the values match exactly in every mouse we tested. The terms split because DPI originally referred to laser printers and scanners, while CPI was coined later by mouse manufacturers. Sensor manufacturers now use CPI because it is more precise, but vendors still print both.
Is 400 DPI better than 1600 DPI?
Neither is inherently better. What matters is the total sensitivity, which combines hardware DPI with the in-game multiplier. A 400 DPI mouse at 2.0 in-game sensitivity and a 1600 DPI mouse at 0.5 in-game sensitivity feel almost identical. Higher DPI lets you use a higher in-game multiplier, which some players prefer because it allows finer raw-number adjustments.
What is the best DPI for gaming?
For competitive shooters, 400-800 DPI with a low in-game sensitivity is the most common professional setup, because it minimises arm movement and micro-correction noise. For general use and productivity, 1000-1600 DPI is more comfortable. The right value depends on your desk space and how large your movements are.
Does a higher DPI make the mouse more accurate?
It makes it more sensitive, not more accurate. Accuracy depends on sensor quality and whether the mouse is tracking smoothly without acceleration or jitter. A 26,000 DPI sensor that jitters or curves is less accurate in practice than a clean 800 DPI sensor. Our best gaming mouse guide ranks sensors on measured consistency rather than headline DPI.
Should I use the highest DPI my mouse supports?
Rarely. Very high DPI values on a small mouse surface require constant wrist movement and are almost always a mistake for gaming. Use a value where a full arm sweep covers your mousepad comfortably, then tune the in-game multiplier from there.