AMD 3D V-Cache, which has been developed for many years, will be officially announced in 2021. Using chip stacking technology, it can increase the cache capacity of the CPU several times, and effectively improve the performance of the processor without changing the core area. After testing by foreign media Chips and Cheese, the new EPYC processor has lower latency and stronger performance.
From the specific data, the cache capacity of the new EPYC processor is larger, and the 3D V-Cache technology also increases the L3 cache delay to a certain extent, but the overall performance is still shrinking, and the performance is better. So, what are the highlights of AMD’s newly released 3D V-Cache technology?
In fact, it has already undergone a variety of tests when it was released in June 2021. From the results, even if the underlying architecture has not changed, but the L3 cache has been violently increased, the measured performance of the CPU has been greatly improved.
For the server GPU, only looking at the power consumption of a single package, the upper limit can reach 280W, but the actual running Compute Benchmark will be higher than the 3200 full plug-in situation. If you want to achieve multi-core performance, of course, the number of cores is inseparable. With enough memory channels, the number of cores can be significantly released, which also raises the expectations of many users.
There have been rumors on the Internet before that AMD will “magnify” to deal with Intel’s Alder Lake, and now it is mostly 3D V-Cache technology. Overall, this technology is based on the 3D Chiplets concept proposed by TSMC’s 3D-Fabric technology. It also adopts the idea of stacking, and the number of L3s is increased to 3 times, which can further release the processor performance and effectively improve the user experience.
But at the same time, some netizens pointed out many problems with AMD 3D V-Cache stacking technology: First, although the introduction of Cache can improve the sensitivity of the cache, it also greatly increases the cost. At the same time, similar to the Qualcomm Snapdragon, the performance improvement and the characteristics of 3D packaging have made the heat dissipation problem deeply criticized, and the corresponding link measures have not yet been proposed.
The real stacking material, the processor architecture of Zen 3, there is currently news that the price will exceed 10,000 US dollars, which is obviously expensive among the same type of processors, but how much more expensive it will be, there is no clear news yet, relatively At the 5000 price after Ryzen’s price increase, it is difficult to speculate on how AMD 3D V-Cache will control costs.
In the past two years, the e-sports has become popular. Like other e-sports enthusiasts, the author has longed for a powerful e-sports headset. In order to avoid being misled by advertisements, it is better to teach people how to fish than to teach them how to fish first.
A. Definition of gaming headset The full name of e-sports is electronic sports, which is an activity in which electronic game competitions reach the level of “competition”. E-sports is an intellectual confrontation exercise between people using electronic equipment as a device.
The gaming headset, as the name suggests, is a headset specially made for video games. It is mainly used to play background music and sound effects. It has the characteristics of accurately positioning the game sound and making people immersive. At the same time, it is combined with a microphone to form the main interface for instant communication with teammates. medium.
B. Comparison of gaming headsets with music headsets, HiFi headsets, and ordinary headsets
The difference with music headphones different appearance On the one hand, gaming headsets generally pursue coolness and domineering, using wide headbands, large earmuffs, thick and long cables, and equipped with shiny adjustable lights, giving people a cool and stylish sense of sight; Music headphones are exquisite and compact in appearance and can be carried around. They emphasize the beauty of fashion and lines, and are usually not decorated with lights.
On the other hand, in order to facilitate communication with teammates, gaming headsets generally have their own microphones, but music headsets generally do not carry a microphone because of the sound quality.
Different sound quality/different emphasis As mentioned in the previous definition, the gaming headset will process the input audio information, pay more attention to the environmental sound effects and the sense of orientation of the sound, filter the noise, and enhance the sound of some details, such as footsteps, skill sounds, etc., so as to bring clarity accurate sound.
Music headphones focus on the restoration of sound and pursue authenticity. The performance of low, medium and high three frequencies is more balanced, and the connection is softer, so the sound effect of showing details and orientation is not so good. If you often play shooting games, gaming headsets are essential.
different channels Immersiveness is the focus of the gaming experience, so gaming headsets generally use 5.1 channels and 7.1 channels, while music headsets generally use 2.0 channels.
The difference with HiFi headphones HiFi, the abbreviation of High-Fidelity, translated as “high fidelity”, that is, the playback sound that is highly similar to the original sound, focusing on high-fidelity and high-quality restoration of sound quality, that is, no sound is processed during the game. The ground feedback to you, but some sounds, such as wind, are not really what the player needs, but will cause interference. Many HiFi headphones can be used for listening to music, so the differences between HiFi headphones and gaming headphones are the same as those of music headphones in terms of appearance, sound quality focus, and channel technology.
Also, the prices of the two are different. The lower price limit of HiFi headsets is high, and HiFi headsets under 300 yuan are half less than gaming gaming headsets. In addition, HIFi headsets at the same price are not of the same grade as gaming gaming headsets. For example, 1,000 yuan gaming headsets are already high-end for gaming, but 1,000 yuan HiFi headsets are only barely getting started for enthusiasts.
The difference from ordinary headphones The ordinary earphones mentioned here refer to ordinary earphones whose price is lower than that of music earphones and HiFi earphones, and do not pay attention to sound quality and material.
In contrast, the gaming headset also has a prominent highlight, which is the noise reduction function. You listen to music with ordinary headphones, no matter how loud the sound is, you can clearly hear the sounds around you, and even others can hear the sound of your music. However, in order to create a sense of immersion in games and achieve the effect of listening to sound, noise reduction is a necessary function for gaming headsets.
Summary There are specialties in the technology industry. As a headset specially designed for video games, gaming headsets have the advantages of cool and diverse appearance, enhanced sound with outstanding details, multi-channel, high sensitivity, noise reduction, and relatively cheap prices. Generally speaking . Games with a weak sense of orientation can do without e-sports headsets, but if you often play games that require a sense of orientation, such as shooting, you need to judge the battlefield situation through footsteps and gunshots, etc., e-sports headsets can make the game experience better.
C. Types of gaming headsets
According to the way of wearing: in-ear, head-mounted Headset: The most common gaming headset, so this article is also about headset gaming headsets. The wrap-around earmuffs provide better noise reduction, and are more suitable for long-term wear without the need for ear canals. At the same time, the obvious appearance is easier to attract attention, but it is easy to be stuffy in summer. Head-mounted gaming gaming headsets can be divided into ear-pressing and over-ear types according to the way they are worn, and can be divided into open and closed types according to the cavity type. Ear pressure type: The size of the earmuffs is too small, it needs to keep fit with the ear to prevent sound leakage, and the pressure on the ear will be greater.
Over-ear type: The size of the earmuffs is designed to be larger, and the entire ear is isolated, which ensures good sound insulation performance. It is relatively comfortable to wear and can be worn for a long time, but it is easy to be stuffy.
Open type: When the headphone unit is seen from one side, the airflow conduction is more natural, the sound field is larger, the sense of hearing is more natural, and the low frequency performance is looser, but the attenuation of noise is poor, and it is not suitable for public use.
Closed type: Contrary to the open type, most of the cavities are closed, there is basically no sound leakage, and the sound insulation is better, but it is easy to feel dull.
In-ear type: It is more friendly to friends who wear glasses, it is easy to carry, and the sound insulation is relatively good. However, because it has to enter the ear canal, it will cause serious hearing damage after prolonged use.
According to the connection method: wired earphones, wireless earphones Wired headset: The most widely used gaming headset at present, the price is cheaper, and the sound quality and sound effect delay are better than wireless ones, but the space is limited and there is a sense of entanglement. Wireless earphones: Gaming earphones connected through wireless Bluetooth are convenient and free of tangle, but they are more expensive and have limited battery life.
Summary From the point of view of health and sound insulation, over-ear headphones are recommended; however, if you simply consider convenience and sound insulation, in-ear headphones can be the first choice.
D. Analysis of professional words related to gaming headsets
Head beam and earmuff material Wearing comfort is the primary pursuit of gaming headsets. And to determine the comfort, in addition to whether the headset is ergonomically designed, it also depends on the material used for the head beam and earmuffs of the headset. Most gaming headsets are now designed with leather-wrapped sponges, which are more breathable. Of course, earphones at different price points use different materials. Leather has the difference between genuine leather and imitation leather, and sponge has the difference between ordinary sponge and memory sponge.
Speaker unit That is, the diameter of the speaker can also be simply and rudely understood as the power of the headphone. Most of the speakers on the market are equipped with 50mm speaker units, and there are also 40mm or 60mm units. That’s not the point of the headset though, the point is the power rating.
Frequency Response Range The frequency response range refers to the frequency range that the audio system can reproduce within the allowable range of the sound amplitude, which is used to measure the uniform reproduction ability of the headphones to the high, medium and low frequency signals. The lower the lower limit of the frequency response and the higher the upper limit, the wider the resolution of the earphones and the richer the details of the sound quality. The frequency range of earphones on the market is basically 20Hz-20KHz, which is also the range that our human ears can hear.
Note: For gaming headsets, the frequency response range is only a reference coefficient, and some businesses will falsely mark the frequency response range, so don’t worry too much about this parameter.
Sensitivity Refers to the sound pressure level that can be emitted when the earphone inputs 1mW of power. Usually the higher the sensitivity, the easier the earphones are to push and sound. High sensitivity is conducive to the enhancement of positioning ability during the game, which is one of the differences between gaming headsets and music headsets.
Impedance Refers to the obstruction of alternating current in the circuit. Generally, the smaller the impedance, the easier it is for the earphone to drive the sound, and the sound performance is smoother. The impedance of gaming headsets on the market is generally around 32Ω, which can basically meet the needs of players.
The difference between 7.1 virtual channels and 7.1 physical channels The 7.1 channel system was mentioned in the previous article on the difference between gaming headphones and music headphones. In short, it is to establish a relatively balanced front and rear sound field around the listener. 7 refers to left, center, right, left front Surround, right front surround, left back surround, right back surround these 7 sound zones, 1 refers to the bass. 7.1 Virtual channel: The DSP algorithm simulates the sound volume and echo to construct multiple virtual channels, and the phase difference between the left and right ears is used to achieve a surround three-dimensional feeling. This technology is a test algorithm. Even if the algorithm is accurate, the actual power amplifier will inevitably have deviations. Physical 7.1 channel: It is really equipped with physical speakers, and 2 to 4 independent channels are set on the left and right. The size of each channel is also different according to the different functions. In general, the sound realism brought by 7.1 physical channels is stronger than that of 7.1 virtual channels, and the price is more expensive. However, not all games can use 7.1 physical channels. The specifics have to be judged according to the games that are often played. Common gaming headsets are equipped with 7.1 virtual channels and 5.1 virtual channels.
E. How to choose gaming headsets The methods and points to pay attention to when choosing gaming headsets are also mentioned in the previous article, which are summarized in this section.
Comfort first! No matter what kind of earphones are in contact with the skin, comfort must be considered first! Pay attention to the following aspects of the gaming headset: whether the head beam is adjustable, the adjustable head beam can be adjusted to the appropriate angle according to different head shapes or hairstyles; the metal steel ring head beam with hollow design has better air permeability and deformation, and is not easy to press Head and clip ears; the material of the earmuffs is preferably memory foam, which is mainly breathable and has a weak sense of pressure.
Multi-channel enhanced stereo sense It is recommended to choose 7.1 channel first, if you like the price, you can choose 7.1 virtual channel. It is especially effective for first-person shooters that require a high sense of orientation.
Pay attention to sensitivity It is recommended to reach more than 100dB, which can more effectively display the sound details in the game scene, especially when playing popular FPS e-sports games.
Optimal sound insulation and noise reduction It can be in-ear or over-the-ear, and the over-ear closed-back gaming headset will be better, free from interference from the surrounding environment, and have a better sense of game immersion and experience.
5.Whether wire control/appearance: This is mainly based on personal preference. Although wireless is convenient and has a large space for movement, it will be limited by battery life and delay. Wired headphones are cheaper, but the space is limited and there is a sense of entanglement.
Other Speaker unit, frequency response range, impedance, these parameters of the gaming headsets on the market are relatively consistent and do not need to be considered too much.
Summary Seeing six roads and listening to all directions is the focus of many games today. For this reason, gaming headsets have become a must-have during gaming. However, the lower limit of the price of gaming headsets is not high, and there is no shortage of high-quality headsets around $30. No matter how much the price is, the key is to choose headphones that match your actual situation and make you comfortable. But it’s hard to tell the difference between the deep and the shallow, so you can’t go wrong with the knowledge of gaming headsets in person!