Razer Viper 8KHz Review: Gaming Mouse that breaks all speed records

Razer, one of the world leaders in PC gaming hardware, has just announced the launch of its proprietary Razer HyperPolling technology, which can be seen with its brand new Razer Viper 8KHz mouse. It is an ambidextrous gaming mouse, which as its name suggests has a polling rate of 8000 Hz.

8 times faster gaming mouse

For a long time, the manufacturers of gaming mice clashed in the field of the sensitivity of the sensors, by proposing more and more powerful models, going up to reach values ​​as high as 20,000 dpi (where the common people are satisfied with 1600 dpi). Today, Razer is changing its mind and tackling the polling rate, which represents the speed of transmission/reception of data between the mouse and the PC.

Until then, most gaming mice had a polling rate of 1000 Hz, which corresponds to a reactivity of 1 ms. In itself, this already made it possible to reproduce the movements of the mouse on the screen without noticeable latency for the common players with a standard screen.

With its HyperPolling technology, Razer allows its new mouse to achieve a polling rate of 8000 Hz, which corresponds to a reactivity of 0.25 ms! In other words, it is the mouse that offers the lowest latency that we have ever seen on this type of material.

Razer Viper 8KHz

Image Source: amazon.com

The goal is to be able to better adapt to the new refresh rates of current screens (144 Hz is becoming more democratic, and there are even more and more 240 and 360 Hz screens), so that the movement of the cursor remains very fluid, and when it comes to traditional dpi, the Razer Viper 8KHz is not left out since the sensitivity setting can reach a maximum of 20,000 dpi.

With the Hyperpolling technology of its Razer Viper 8KHz, Razer increases the frequency of exchange with the computer from 1000 Hz to 8000 Hz in order to eliminate the archenemy of competitive gamers, latency. Did it necessarily have to go that far?

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After having long participated – like almost all manufacturers – in the race for the mouse with the greatest sensor sensitivity, reaching values ​​as high as they are useless of 20,000 dpi, Razer now intends to revolutionize the speed of data transmission. exchanged between the mouse and the computer. Fixed at 1000 Hz for gaming mice for several years now, this mouse polling rate allows on paper to reduce latency to a minimum of 1 ms, which has already proven to be true. very fast.

Never mind, Razer goes even further with its Hyperpolling technology which promises no less than 8000 Hz! The Razer Viper 8KHz is the first mouse to take advantage of this and is clearly aimed at competitive gamers who need the best possible responsiveness. An “e-sport” positioning that results in a relatively high price for a wired mouse, the Razer Viper 8KHz being launched at $79.99.


Lightness without compromising comfort

Razer Viper 8KHz is just an improved Viper. We, therefore, find the same discreet design that is nevertheless easily identifiable as a Razer mouse. The grainy matte black plastic of the shell mingles with the shiny black plastic separating the two main buttons. The result is quite elegant, especially since the build quality is flawless.

We always appreciate the lightness of this model which displays only 72 g on the scale (71 g announced, cable excluded, or 2 g more than the classic Viper) and allows very good handling.

The well-curved edges and their elastomeric coating improve the grip so that it is very easy to make large and rapid movements and to lift the mouse to recenter it on the mat.

The glide is also very good thanks to the two large PTFE pads, in particular on carpets with textile coating. Fatally, the presence of a cable makes the movements of the mouse a little less free compared to a wireless mouse, but the very flexible cover of the Speedflex cable (1.8 m) of the Razer Viper 8KHz is easily forgotten.

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A secure grip

In addition to a good grip, the Razer Viper 8KHz has good reception of the hand despite its contained template (126.7 x 57.6 x 37.8 mm) which does not necessarily invite to put the entire palm. As this is a mouse designed for fast games (FPS type), it will be used more readily with your fingertips for more agility. The fingers remain in any case well centered on the main buttons, curved for this purpose.

Optical switches for more responsiveness

These buttons benefit from optical switches guaranteed to be very responsive, since their activation is carried out by interrupting a light beam, replacing the usual metal contact – which for its part requires signal processing involving higher latency. Reliability progresses in passing, going from 50 to 70 million guaranteed activations.

Note, however, that the activation force of the buttons of the Razer Viper 8KHz is not the weakest possible, those of its competitor G Pro Wireless from Logitech being even more sensitive. Both mice, however, use small springs that hold the main buttons on the switches and decrease the activation force required. Overall, the Razer Viper 8KHz’s knobs are a bit stiffer.

It is, unfortunately, less glorious on the side of the edge buttons which protrude little from the hull. A choice of reason to ensure the ambidextrous character of the mouse and avoid involuntary activations, but this requires a little more effort on the thumb.

However, we end with a positive result with a well-notched wheel that is quite discreet despite everything in-office use if it is scrolled quickly. Equally convincing is the switch associated with it.

Common to all Razer peripherals, the Synapse configuration software allows you to change the function of all mouse buttons (except the left click so you don’t end up with an unusable mouse). You can also assign a secondary function to each button thanks to Hypershift which engages when you hold down the button to which it has been assigned.

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It is also possible to create up to five levels of sensitivity of the mouse sensor, from 100 to 20,000 dpi (in steps of 50) and, of course, to adjust the polling frequency (125, 500, 1000, 2000, 4000, or 8000 Hz).

The backlight of the mouse logo and its intensity can be changed, with several light effects available.

High-end performance and finishes

With the Razer Viper 8KHz, revolutionary HyperPolling technology is embedded in an ergonomic and ambidextrous chassis, which weighs barely 71 grams. This lightness coupled with the excellent grip allows very good maneuverability of the mouse, which will delight both right-handed and left-handed players.

In addition, the Razer Viper 8KHz is equipped with large PTFE pads which ensure an impeccable glide, even on textile surfaces. Purists may regret the presence of a cable, at a time when wireless mice are on the rise. But rest assured, this one knows how to be forgotten thanks to its very flexible Speedflex sheath!

Finally, the mouse has 8 programmable buttons. As usual with Razer, these are customizable with Synapse 3 software, which allows each button to be assigned a shortcut or macro.

With such cutting-edge features, Razer targets an esports audience, looking for the highest possible responsiveness. A high-end positioning that comes with a substantial price, since the Razer Viper 8KHz has been available since the first quarter of 2021 at the retail price of $79.99.

Strong Points

  • Flawless responsiveness.
  • Fast and precise optical sensor.
  • Lightness.
  • Good handling.
  • Really ambidextrous: 2 buttons on each edge.
  • The flexibility of the USB cable.

Weak Points

  • Slice buttons not necessarily easy to operate.
  • Sensitivity change button under the mouse.
  • The interest of 8000 Hz not obvious.


Truly very responsive, the Razer Viper 8KHz achieves its objectives but struggles to assert its superiority in practice. The gain associated with switching to a frequency of 8000 Hz is in fact expressed by definition in the millisecond, which will remain imperceptible for many players compared to a classic Viper operating at 1000 Hz. Point of revolution, therefore, but a mouse on which competitive players can count on.

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