PixArt’s PAW3950 has already established itself as one of the most trusted flagship gaming mouse sensors on the market. Now, the newer PAW3955 is beginning to appear in next-generation wireless gaming mice.
On paper, the two sensors look very similar. Both deliver flagship-level tracking, ultra-low latency, and support for high polling rate.
So what actually changed?
Here’s the quick breakdown from a user perspective.
Quick Comparison
| Feature | PAW3950 | PAW3955 |
| Max DPI (CPI) | 30,000 | 40,000 |
| DPI (CPI) Adjustment | 50 DPI steps | 1-DPI steps |
| Native HP Modes | HP 1K | HP 1K, 2K, and 4K |
| Max Polling Rate | Up to 8K | Up to 8K |
| Max Acceleration | 50 G | 60 G |
| User-Adjustable LOD | Yes | Yes |
| Factory Preset LOD Levels | Not available | 5 preset values |
| Glass Tracking | Yes | Yes |
*Native HP Modes: HP stands for High Performance. These modes are optimized at the sensor level for different polling rate scenarios, helping improve stability, latency behavior, and efficiency in high-polling-rate wireless gaming mice.
*LOD: LOD stands for Lift-Off Distance, which refers to how high the mouse can be lifted before tracking stops.
What Actually Matters for Gamers?
1. Better Optimization for High Polling Rates
Both PAW3950 and PAW3955 support up to 8K polling.
The difference is that the PAW3955 introduces native High Performance (HP) 1K, 2K, and 4K operating modes directly at the sensor level. This allows better optimization for high polling rates, especially in wireless gaming scenarios.
In practice, this can help improve:
- Motion Consistency
- Wireless Stability
- Latency Behavior
- High-Polling-Rate Efficiency
Matters Most for: Competitive Players Using High Polling Wireless Mice
Less Noticeable for: Casual Users Gaming at Standard Polling Rates
2. More Precise DPI Adjustment
PAW3950 adjusts DPI in 50-DPI steps, while PAW3955 supports 1-DPI increments.
For most gamers, this will not dramatically change gameplay. However, players who fine-tune sensitivity settings may appreciate the added precision.
The jump from 30K to 40K DPI also gives manufacturers more headroom for future high-resolution and multi-monitor setups, even if most users will never actually use extremely high DPI values.
Matters Most for: FPS Players and Sensitivity Enthusiasts
Less Noticeable for: Most Everyday Users
3. More Refined Default LOD Tuning
Both sensors still support adjustable Lift-Off Distance (LOD) settings through software.
The difference is that PAW3955 adds a 5-level preset LOD system, allowing mouse manufacturers to fine-tune the default lift-off distance more precisely before the mouse reaches the user.
This can result in a more refined out-of-box tracking experience depending on the mouse implementation.
Matters Most for: Low-Sensitivity FPS Players Who Frequently Reposition The Mouse
Less Noticeable for: General-Purpose Gaming and Office Use
4. Slightly Higher Tracking Headroom
The PAW3955 increases maximum acceleration from 50G to 60G.
In real-world gaming, most players are unlikely to notice a major difference, since both sensors already handle extremely fast movement well. However, the higher specification gives manufacturers additional performance headroom for flagship gaming mice.
Matters Most for: High-Speed Competitive Gameplay
Less Noticeable for: Most Players in Normal Use
What Hasn’t Changed?
A lot of the core experience remains the same.
Both sensors still offer:
- Enthusiast-grade Tracking Performance
- Glass Surface Tracking Support
- Motion Sync Support
- Ultra-low Latency
- Excellent Power Efficiency
In real-world gaming, both sensors already perform at an extremely high level.
Conclusion
The PAW3955 is not a complete redesign of the PAW3950.
Instead, it is a refined evolution of an already excellent platform.
The biggest improvements are not just higher numbers on a spec sheet, but better optimization for modern wireless gaming mice — especially for high polling rate, precise tuning, and next-generation flagship performance.
Explore Keychron’s Gaming Mouse Collection to learn more about our latest wireless gaming mouse designs.
FAQs
Do both sensors support 8K polling?
Yes. Both PAW3950 and PAW3955 support up to 8K polling in Corded Gaming mode. The main difference is that the PAW3955 adds native sensor-level HP 1K / 2K / 4K operating modes for more refined optimization for high polling rates.
Will I notice a difference during gameplay?
For most players, the difference will be relatively small. Both sensors already provide excellent tracking accuracy, ultra-low latency, and high-speed motion performance. The PAW3955 focuses more on improving tuning precision and wireless optimization rather than dramatically changing raw tracking capability.