Joined in 2023 
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power options changed, to max, perfomance, all power adjusted not to turn off any hardware, in this case mouse. Also adjusted settings in device manager that pc would not disable power to mouse to save energy. Something that’s also noticeable is the fact that the Viper has comfort grooves in the main buttons that are rather pronounced. I like that kind of design so for me it’s a win, but if you dislike these sorts of things this might be important to know.
As always I’d like to conclude this section with a disclaimer: I don’t know you, so I don’t know your preferences. You might have smaller hands and love large mice, or you might prefer super flat mice even with a palm grip. Always take these ‘grip and size recommendation’ portions by us reviewers with a grain of salt, as everyone is different. Buttons and Scroll Wheel Razer has also made two other small improvements. The first is that the Viper 8K glides much better than the original thanks to its new 100% PTFE mouse feet. The second is that the buttons on either side are now more flush with the rest of the shell and harder to hit by mistake. That was a constant aggravation on the original, so it’s a big plus to see that improved here. These two changes might not seem like much but they’re solid upgrades to day-to-day use and make the whole mouse nicer to use. Due to the different technologies that are inside the 8KHz it weighs just a bit more than it did when it first released with a max polling rate of 1000Hz. This one comes in at 71 grams. That puts it just above the ‘ultralight’ category (we consider every mouse that’s 70 grams or less to be an ultralight mouse) but of course it’s still an extremely respectable weight. The 8k polling rate. this provides an extremely smooth mouse movement. this may be different from person to person. maybe mouse pads make a huge difference I have a relatively cheap one atm. One issue I've run into is Apex legends WILL NOT run a polling rate over 2000 on a 144 hz monitor. or at least not on mine. rainbow six siege I can crank to 8k and no issues. so maybe its game/display/system dependent I dont have a way to test it.In conclusion I’d say that unless you’re a Viper (wired) user looking for a new mouse I wouldn’t recommend rushing out to the store to buy a new one. A lot of factors come into play when it comes to aiming, and unless your aim is already nearly perfect and you’re playing at the very highest of levels where every percentage point matters it’s not a massive game changer. Cool new technology? Yes. Would be good to have standard on every mouse in a couple of years? Also yes. Would I be able to tell which one is 8KHz and which one is 1KHz in a blind test? Probably not. Is it mandatory for competitive gamers? No. Razer Viper 8KHz Review – Conclusion Some examples are the ‘Raw Input Buffer’ in Valorant and ‘High Precision Mouse Input’ in Overwatch. Of course, when it comes to input lag there are other factors at work besides the mouse's individual latency. The overall amount of time it takes for my mouse input to appear on screen not only depends on the mouse, but also how long my CPU and GPU take to process it, as well as the screen. I have decent specs here, but the lowest latency results possible would require something like a desktop RTX 3090, along with a 360 Hz monitor. If you do use Synapse, you can store an limited number of profiles, including with RGB settings, usable with the software open, and every profile will be able to launch automatically with specific games or other apps. The Viper 8KHz comes with Razer’s Focus+ Optical sensor. That’s a flawless one, and I found no issues with its implementation. There’s no smoothing, sensor deviation, or anything like that. The sensor isn’t really the selling point of this mouse, however. Yes, it’s flawless (and it goes up to 20000 DPI, which is far beyond what any normal gamer would use to be honest) but all recent gaming mice worth their money have a flawless sensor. The unique factor here is the 8KHz polling rate, so the question is: is it worth it?
On to the mouse, then. I have never extensively tested a regular Viper but I did review the Viper Ultimateand Viper Miniso I have some experience with the product line. What immediately caught my attention when I first grabbed the 8KHz is how much better the buttons feel. I had no problems with the first iteration of Razer’s optical mouse switches (at least not on the units that I got for review) but it couldn’t be denied that they felt a fair bit less crispy than actual mechanical switches, and it feels as if Razer has really been working on that aspect. Polling rate isn’t the only thing boosted on the Viper 8K Hz. Even if you ignore the high polling rate, this is a high-specced rat, thanks to Razer’s homegrown Focus+ optical sensor. Although in introducing this mouse Razer is saying demonstratively and literally that it thinks a high polling rate enhances the gaming experience more than high CPI, the Viper 8K Hz still goes up to 20,000 CPI. The sensor is also specced to handle velocities of up to 650 IPS and 50g of acceleration. That’s an upgrade from the original Viper, which uses the Razer 5G optical sensor (16,000 CPI / 450 IPS / 50g) but matches the pricier wireless Viper Ultimate’s specs. But unless you game at the highest CPI (most don’t) or move your mouse with super aggression, you probably would’ve been fine with the 5G.so far, it's been about 2 weeks. this mouse is ultra light to me coming from a steelseries rival 600. the steelseries was slightly over 100 grams so it's almost 30 gram difference. this weighing in at 74. I didn't really expect it to affect my or even be noticeable. boy was I wrong. instantly lighter and the feet on this mouse glide so smoothly. When I did this same action with the Viper 8K Hz, the points of the oval where I could see arrows seemingly shoulder-to-shoulder expanded. It still mostly occurred on the left and right sides but was starting to appear more into the top and bottom sides. 8,000 Hz was ultimately enabling my screen to show me more frequent updates of my pointer’s location. Razer Viper 8K – Design and FeaturesThe Razer Viper 8K feels like an old friend — and it should. There are virtually no differences between the original Razer Viper and the Viper 8K I’m reviewing today. That’s a very good thing, as the original Razer Viper is one of my favorite mice ever. It’s also good because the original Viper is being phased out and replaced with this upgraded version at no extra cost. It’s a medium-sized ultralight mouse (71 grams) that works well whether you’re a palm, claw, or fingertip gripped gamer. That versatility even extends to being a righty or lefty thanks to its 8-button ambidextrous design. The 144 Hz requirement is more attainable, but Razer claims that the higher the refresh rate, the greater the benefits. This is a future-proofing mouse, and it’s best mate currently is, really, a 360 Hz monitor, which we’ve found to show noticeable improvements in speed and response compared to 240 Hz monitors. I didn’t have one on hand though, so for my testing I used a Razer Blade 15 Advanced Model, one of the best gaming laptops. The Viper 8K Hz is specced for up to 20,000 CPI, a max velocity of 650 inches per second (IPS) and max acceleration of 50g. For comparison, we brought in two 1,000 Hz mice:
Some game engines, particularly in older titles, simply cannot handle high polling rate devices well, as they were never designed with such devices in mind. One very important caveat is that you need some decently beefy gear to reap the rewards: the 8Khz polling rate will make your PC work harder and unless you’re gaming on a high refresh rate monitor the advantages of the high polling rate will not be tangible at all. There’s also the fact that not all games support this kind of polling rate, so you might not get the full benefit from this tech for quite a while. Consider it an early adopter tax. I remembered from my study about the IRQ interrupts. I started to read how the interrupts work in Windows 10. I learned about the Message_Signaled_Interrupts. With the tool MSI_util_v3 (thanks to this article message-signal-interrupts-yes-or-no) lists the IRQ number, the type and priority of our peripherals. I discovered that my graphic card and my audio card were using the same IRQ numbers (16). I set the graphic card to use the "msi" type of interrupts:For a full explanation on my thoughts on 8KHz you’ll need to go the ‘performance and sensor’ section, but in short I’ll say: there are more important factors to a gaming mouse than the polling rate. Don’t get this one if you know you will dislike the shape, thinking that the 8KHz polling rate will catapult your aiming skills into the stratosphere. It won’t do that. But if you’re already used to the shape and you’ve got the system to match it might make you a bit more consistent. I'm a person who enjoys rgb and wish there was more. this is a non issue for most I'm sure, but this is about the only thing the steelseries had over this mouse was the customization options for rgb. In fact, trying to run at 8K even caused some problems in Apex Legends. When making fast turns, my game would sometimes stutter like it was trying to catch up in frames. Considering the specs of my gaming PC, it shouldn’t be a hardware limitation. In my search for an answer, I came across reports from other gamers experiencing the same but the only consistent factor between them seemed to be that turning down the polling rate fixed the problem. In my case, dropping to 2,000Hz fixed the issue. I wasn’t as bad off as some, but clearly even high-end systems can experience issues. The Razer Viper 8K Hz is a speed demon. Don't get me wrong; we're talking fractions of a second here, and most of us won't see a huge difference compared to previous editions. It isn't going to offer any benefit if you've got an older monitor, either. But it's a big deal for those who want to squeeze every last millisecond of speed from their gear. There's a reassuring feeling about your mouse being the fastest one out there, too. Synapse’s Performance menu lets you set the CPI stages that the button on the mouse’s underside toggles through. You can set 2, 3, 4 or 5 CPI settings, adjustable by increments of 50. There’s a light indicator by the CPI switch helpfully reminding you which setting you’re at, and if you have Synapse, a large pop-up will also appear on the screen.
the liftoff distance. this is the number one win for steelseries. they had a liftoff distance as low as .5 mm lift off distance which I absolutely loved. the lowest for this mouse is 2 mm. so lifting and lowering there is mouse jottering I'm not a fan of but overall not a big issue. big win for steelseries here. If it truly had any practical applications in gaming, then the highest DPI settings would be used by every eSports player,” Razer boldly states in its reviewer’s guide. Instead, the vendor thinks the combination of the Viper 8K Hz’s sensor, plus fast switches and polling rate will yield desired gameplay. Following the update to Test Bench 1.2, some of our test results have changed within both the Weight and CPI sections. We've added or modified some of the text in this article to clarify these changes. ounces is still pretty lightweight though. It’s not quite as light as most honeycomb mice (the Glorious Model D, for example, is 2.40 ounces for the matte version) but still lighter than the MSI Clutch GM30 (3.46 ounces) or Razer DeathAdder Elite (3.70 ounces).For transparency this is my first razer mouse, and only my 3rd mouse. fist was a cheap havit mouse that came with a bundle. second was a steelseries 600. Honestly I assumed I'd get this mouse and be underwhelmed. The reason for this is because of CPU use, it’s possible that 8K could actually lower your in-game FPS if you’re running an processor or graphics card.
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