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1617469647 AMD has found a vulnerability in its latest Ryzen processors 1617469647 AMD has found a vulnerability in its latest Ryzen processors

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AMD has found a vulnerability in its latest Ryzen processors, but claims not to worry

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Several years ago, there was a boom in the detection of vulnerabilities in the processor market, which has already been safely forgotten. More often, vulnerabilities were found in Intel CPUs, while AMD processors did not.

Now AMD itself has found a new vulnerability in its new generation Ryzen processors. It allows the use of so-called side-channel or side-channel attacks. This kind of attack is similar to the one underlying the Specter vulnerability.

The vulnerability was found in the latest Zen 3 architecture. More precisely, the reason is the new Predictive Store Forwarding (PSF) function, which is a predictor of the result of loading instructions. In most cases, the PSF forecast comes true, which allows Ryzen processors to execute instructions in advance that would normally be executed much later.

However, there are times when the predictor is wrong. In this case, the very vulnerability is formed. AMD itself has no evidence of anyone ever exploiting this vulnerability and considers the risks to be low. The company has explained how to disable PSF, but warns that it will negatively impact performance. It is possible that AMD is already working on a patch to fix the discovered vulnerability.

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AMD Ryzen 7 6800H octa-core processor, GeForce RTX 2050 graphics, and 3.2K screen for $975. Inexpensive powerful laptops Redmi Book Pro 2022 Ryzen Edition

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AMD Ryzen 7 6800H octa core processor GeForce RTX 2050 graphics

Xiaomi has finally unveiled the Redmi Book Pro 2022 Ryzen Edition laptops, which were announced in early March. There are two new products – Redmi Book Pro 14 2022 Ryzen Edition with a 14-inch screen and Redmi Book Pro 15 2022 Ryzen Edition with a 15.6-inch screen. All of them are equipped exclusively with 16 GB of RAM and a 512 GB SSD.

AMD Ryzen 7 6800H octa-core processor, GeForce RTX 2050 graphics, and 3.2K screen for $975.  Inexpensive powerful laptops Redmi Book Pro 2022 Ryzen Edition

There are two processors to choose from: a 6-core Ryzen 5 6600H and an 8-core Ryzen 7 6800H. They are available for both the younger version and the older one. Redmi Book Pro 15 2022 Ryzen Edition in the top version is also endowed with a discrete 3D accelerator in the face of the GeForce RTX 2050.

Redmi Book Pro 14 2022 comes with a 2.5K resolution screen, 120Hz frame rate, DC Dimming support and 100% sRGB color space coverage. Redmi Book Pro 15 2022 received a display with a resolution of 3.2K and a frame rate of 90 Hz, everything else is like the younger model.

AMD Ryzen 7 6800H octa-core processor, GeForce RTX 2050 graphics, and 3.2K screen for $975.  Inexpensive powerful laptops Redmi Book Pro 2022 Ryzen Edition

AMD Ryzen 7 6800H octa-core processor, GeForce RTX 2050 graphics, and 3.2K screen for $975.  Inexpensive powerful laptops Redmi Book Pro 2022 Ryzen Edition

Redmi Book Pro 14 2022 is characterized by a thickness of 15.9 mm and a weight of 1.45 kg. Among the interface connectors are USB-C with Thunderbolt 4 interface, one each USB-C and USB-A, as well as HDMI 2.0. The thickness of Redmi Book Pro 15 2022 is only 14.9mm. The set of connectors here is the same as in the younger model, but there is also a slot for SD memory cards. A feature of Redmi Book Pro 15 2022 is a cooling system with three heat pipes and two fans – in the younger model, the cooling system is simpler.

As for prices, they look like this:

Redmi Book Pro 14 2022 Ryzen Edition:

  • Ryzen 5 6600H, 16GB RAM, 512GB SSD – $675;
  • Ryzen 7 6800H, 16GB RAM, 512GB SSD – $765

Redmi Book Pro 15 2022 Ryzen Edition:

  • Ryzen 5 6600H, 16GB RAM, 512GB SSD – $705;
  • Ryzen 7 6800H, 16GB RAM, 512GB SSD – $795;
  • Ryzen 5 6600H, 16GB RAM, 512GB SSD, GeForce RTX 2050 – $885;
  • Ryzen 7 6800H, 16GB RAM, 512GB SSD, GeForce RTX 2050 – $975
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A large and complex processor that looks like a little man. Amazon AWS Graviton3 go to market

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A large and complex processor that looks like a little

Amazon today made available AWS Graviton3 processors, which were shown six months ago.

A large and complex processor that looks like a little man.  Amazon AWS Graviton3 go to market

Like the previous models in the series, Graviton3 is server-oriented and created by Amazon itself for its own cloud servers. It contains about 55 billion transistors and is based on the Arm architecture. Relative to its predecessor, the novelty is two to three times faster, depending on the tasks.

But one of the most interesting features of Graviton3 is the design. Or structure. It is not so important how to call it, but what is important is that, as you can see in the photo, the processor crystals are arranged in such a way that they resemble a little man.

A large and complex processor that looks like a little man.  Amazon AWS Graviton3 go to market

There are seven dies in total: the main processor, two DDR5 RAM dies and two PCIe bus dies. Another distinguishing feature of Graviton3 is that it is designed for three-socket motherboards, which is quite rare. Typically, the number of sockets, if greater than one, is a multiple of two.

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Asus introduced a unique monitor with a frame rate of 500 Hz. ROG Swift 500 Hz received a TN panel

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Asus introduced a unique monitor with a frame rate of

While monitors with frame rates over 240Hz are still rare, Asus took the ROG Swift 500Hz model and showed it. As you might guess, with a frame rate of 500 Hz!

Asus introduced a unique monitor with a frame rate of 500 Hz.  ROG Swift 500 Hz received a TN panel

At the moment, the maximum value is 360 Hz, so there is an impressive jump. The monitor is coming out as part of Nvidia’s G-Sync initiative, which means it will support the corresponding technology.

The monitor is positioned as a solution for eSports, which is logical, since the average gamer is unlikely to feel those same 500 Hz.

As for the rest of the parameters, the monitor is based on a 24-inch TN panel with Full HD resolution. Of course, this may seem outdated, but still we are talking about a professional tool, so for potential users, this is not all minuses. But the release date on the market is still unknown. It is possible that the monitor will be released only at the end of the year.

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Now the SSD in PlayStation 5 seems to be slow. Apacer showed drives with speeds up to 13,000 MB / s

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Now the SSD in PlayStation 5 seems to be slow

It’s been literally a year and a half since the launch of the PlayStation 5, which, among other things, impressed with its ultra-fast SSD. But a lot has changed in the market in a year and a half.

Now the SSD in PlayStation 5 seems to be slow.  Apacer showed drives with speeds up to 13,000 MB / s

Apacer showcases next-generation PCIe 5.0 SSDs with read/write speeds of 13,000 and 12,000 MB/s respectively!

Recall that the Sony console has an SSD with a speed of about 7000 MB / s, that is, the new Apacer will be almost twice as fast.

The Apacer AS2280F5 drive does not stand out in any way. It has a heat sink, but overall it’s just an SSD. There is also the Zadak TWSG5 model, which is distinguished by the addition of graphene and aluminum to the cooling system.

There are no other details yet. In particular, the company does not name the controller used, but it could be the Phison E20.

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