Here’s a technology that could make laptops and smartphones last longer

When you think about the parts of our electronic devices that consume the most power, the screen and processor usually spring to mind. However, data transfer – either within the device or over the waves (i.e. to cloud storage providers) – is consuming more and more power.

Scientists at the National University of Singapore (NUS) have come up with an innovative technique that promises to reduce the amount of energy consumed during memory-intensive processes by up to 80%. In other words, a fivefold improvement in efficiency over current solutions when bits travel on silicon.

They came up with a new type of network-on-chip that decreases quality a little bit, but also reduces power consumption significantly. This is achieved by adjusting the amplitude of the transmitted signal dynamically; using conventional values for mission-critical tasks to ensure maximum accuracy and lower values for greater power reductions.

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Smarter than usual

The example provided by the team was that of imperceptible video quality degradation when full quality is unnecessary, for example when the user looks away from the screen, when ambient light is low or when battery life is short.

Similar scenarios are also applicable to more powerful (and power hungry) platforms such as desktop PCs, NAS boxes, laptops or even servers, but the key opportunity is to enable a full computer vision system – one that can replicate the human vision system while being viable from a power perspective.

The stated goal of the research is to build “a new breed of low-power smart cameras that could operate almost perpetually under the tight power budget extracted from the environment such as via a centimeter-sized solar cell”.

It's unclear when the technology will be rolled out for more practical use cases, but given TSMC – which manufactures chips for AMD, Nvidia and Qualcomm – supports the project for chip fabrication, we wouldn’t be surprised if it was sooner rather than later.

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Here’s the best value rugged smartphone on the market

We were impressed with the Ulefone Armor 7 rugged smartphone when we reviewed the device earlier this year. Now, Ulefone has released a new and cheaper iteration: the Ulefone Armor 7E.

The discount version of Ulefone’s flagship rugged smartphone is available for an attractive $ 229.99 (£188.60/AU$ 370.29) from online retailer Gearbest – that's more than $ 100 less than the original model.

The unit ships for free to the US, UK, Australia and dozens of other territories worldwide, but it's worth noting the price of the system could change in line with exchange rate fluctuations.

There are only two main differences between the Armor 7 and Armor 7E: the latter has half the memory and inferior camera sensors.

All other components found in the original are still present, including a Mediatek P90 CPU with 128GB storage, 6.3-inch FHD+ display, 48-megapixel rear Samsung camera, 16-megapixel front camera and 5500mAh battery.

Other features include 802.11ac Wi-FI, Bluetooth, dual nano SIM card with microSD slot, Bluetooth 5.0, NFC, IP68, wireless charging, heart rate sensor and MIL-STD-810G certification.

Rivals such as the Oukitel WP6 and Doogee S68 Pro may have more memory or a larger battery, but the Armor 7E provides greater balance thanks to a superior processor and overall feature set.

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The new iPhone SE is out today, and here’s how you can get one

Apple's new iPhone SE is available to buy now around the world. If you've been waiting to pick up a new iPhone that doesn't cost as much as a member of the iPhone 11 range, now is the time to do it.

The new iPhone SE has a 4.7-inch screen, the modern A13 Bionic chipset and a 12MP rear camera. In other words, it's an iPhone 8 that's been jazzed up a bit with some modern internal tech.

You can pick up the new iPhone SE (2020) from $ 399 / £419 / AU$ 749, which is a lot less than the $ 699 / £729 / AU$ 1,199 iPhone 11. In fact, this price is decidedly mid-range compared to the main-series phone, and while we'd struggle to call it 'cheap' given you can pick up a decent Android phone for half the price, it's still a low cost for people who want an Apple device.

How can I buy an iPhone SE (2020)?

If you've read the above, and our iPhone SE (2020) review, and you've decided it's the new phone for you, it's pretty easy to pick up the new iPhone.

We've prepared a page full of iPhone SE deals which should help you find a bargain in your region, whether that's with a carrier offering money back or a great contract. 

We're always scouring the internet for the best iPhone SE (2020) prices for you, and as well as in our deals page, you can find the best in your region below:

  • Everything you need to know about the iPhone 12

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Here’s the cheapest Core i5 laptop right now

We reviewed the Lhmzniy A9 not so long ago, and it remains one of the most promising laptops from China we’ve encountered in 2020. It comes with Windows 10 Pro, 16GB of RAM in dual channel, a webcam cover and a tiny charger – not to mention a premium finish that doesn't seem to match its affordable price tag.

Fast forward to April and a slightly larger clone has entered the market: the KUU K1.

The KUU K1 looks a lot like the bigger brother of the A9, with a 15.6-inch display and a full numeric keypad. The 256GB model is available for a mere $ 394.99 (around £350/AU$ 685) from Gearbest, using coupon code O4883112F39EB000 for a saving of $ 31.

The slightly more expensive 512GB model costs only $ 419.99 (roughly £375/AU$ 735) with coupon code D4883220F65EB001, which reduces the price by $ 36.

One key difference between the lookalike devices is the inclusion of a Core i5-5257U CPU in the KUU K1. It's an old CPU, launched in 2015, but with a base clock speed of 2.7GHz and a relatively powerful Iris Graphics 6100 GPU, it is still competitive with the likes of the Intel Core i5-7200U according to CPUBenchmark numbers. 

The rest of the specification is also unheard of at this price point: 8GB of RAM with a Magnesium Aluminum alloy, support for two SSDs (256GB or 512GB SSD), a fingerprint reader, and an IPS full HD display.

The machine also features 802.11ac, a 38Whr battery, two USB ports, a micro-HDMI interface, a card slot and a headphone jack. The webcam is located on the hinge, similar to the older Dell XPS 13 laptops, and should come with a privacy cover.

Note, Gearbest ships worldwide, but the exact cost in your local currency will be calculated in real time and displayed at checkout.

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Windows 10 updates could now slow down your PC – here’s how to fix them

Several recent Windows 10 updates are seriously impacting the speeds of PCs they are installed on.

According to Windows Latest, Windows 10 updates KB4535996, KB4540673 and KB4551762 could all make your PC slower to boot.

While KB4535996 is an optional update, and has been accused of introducing various problems into Windows 10 since its launch on February 27, Windows 10 KB4540673 and KB4551762 are standard updates, which means they are more likely to have been installed on your PC.

Not only are these updates making PCs slower to boot, when Windows 10 does load up, some people have noticed that their computers act more slowly than before – for example taking longer to load up apps or open folders.

Not everyone will be affected by these issues, but in its testing, Windows Latest found that Windows 10 KB4535996 was particularly bad at slowing down various PCs.

New Windows 10 KB4551762 issues

Windows Latest is also reporting on performance issues with the Windows 10 KB4551762 update. This update, which is for people running Windows 10 1903 and 1909 versions (the two latest major Windows 10 releases) is causing people to notice abnormal processor and disk usage – which can seriously impact the performance of the computer.

One of our biggest concerns is that Windows 10 KB4551762 is billed as an important update that is supposed to bring a number of fixes. That means Windows 10 users are being encouraged to install it.

People in Windows Latest’s comment section, as well as Microsoft’s support forums and on Reddit, have been complaining about issues their PCs are having after installing the update, including slow boot times, system crashes and the dreaded Blue Screen of Death.

Some people are also stating that the update itself fails to install, instead throwing up an error message. This might be a blessing in disguise.

How to fix these problems

For each of these faulty Windows 10 updates, the easiest way of fixing the problems they have brought is to uninstall the updates themselves. Once uninstalled, users have reported that the issues have cleared up.

Thankfully, the process of uninstalling a Windows 10 update is pretty simple. Open up the Settings app (the cog icon in the Start menu, or by pressing Windows + I on the keyboard), then click 'Update & security'.

From the window that appears, click 'Windows Update' on the left-hand menu, then 'View update history'. Click 'Uninstall updates' then select the name of the troublesome update to uninstall it. The problems should now be fixed.

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Here’s the biggest free cloud storage right now, 200GB exclusive to TechRadar readers

Cloud storage company Degoo may not be a household name, but it has managed to carve out a niche in the competitive cloud storage market, with its offerings attracting more than 15 million users over the past eight years.

The Swedish company has teamed up with TechRadar to deliver an even better package than usual – get 200GB free cloud storage for a year with no strings attached.

After 12 months, this will revert back to the regular 100GB package, which is still plenty for most.

One of the cheapest cloud storage offers

You can also get a staggering 10TB for two years at just $ 99.99, exclusive to TechRadar. That’s 58% off the standard price of $ 9.99 per month – blowing the cloud storage competition out of the water.

Unlike some rival services, there are no file size limits and you don’t need another Degoo account to receive files. 

Uploaded files are encrypted in chunks (zero knowledge encryption) and spread out to data centres on four continents to eliminate the risk of account compromise.

Carl Hasselkog, CEO of Degoo, told TechRadar its infrastructure is five times more efficient than Dropbox per stored byte.

It's worth noting the free version has basic storage replication and no zero knowledge encryption, plus a 90-day account inactivity limit. It also carries adverts in the feed on Android.

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The AMD Radeon RX 5600 XT launch is a mess: here’s what you need to know

AMD announced the Radeon RX 5600 XT back at CES 2020, and the pitch is solid: provide the ultimate 1080p gaming experience at a price that makes it competitive with the GTX 1660 Ti

And that's the way it would have played out, at least until Nvidia decided to drop the price on the GeForce RTX 2060 down to $ 299 (£274, AU$ 539) to put the pressure on AMD. That's where the drama starts – but it only gets spicier from here.

Now, when we reviewed the AMD Radeon RX 5600 XT, it actually holds its own against the RTX 2060, even beating it in several tests. But, after we did our tests for the review, aftermarket graphics card manufacturers pushed out VBIOS (VGA Basic Input Output System) updates that enhanced performance even further. If that sounded like a whole bunch of nonsensical jargon, that's because it was – which highlights a major problem with the launch of the AMD Radeon RX 5600 XT.

So, we thought it'd be a good idea to not only dive into the performance gains that we found when we updated the VBIOS of the Sapphire Pulse model of the Radeon RX 5600 XT we reviewed, but also dive into the often confusing world of aftermarket graphics cards. Our end goal is to help you make the right decision, so if you do buy a Radeon RX 5600 XT or any other graphics card, you can make sure you get one that doesn't ultimately disappoint you. 

What's the deal with aftermarket graphics cards, anyway?

Imagine this: you're in a Best Buy and you walk into the computing section. You've always been tempted to get into PC gaming, and you heard a whole bunch of people tell you that you have to buy your own. When you look at the graphics cards, not only do you see AMD and Nvidia graphics cards, but there are other brand names on the boxes like EVGA, Sapphire, XFX or MSI. 

For anyone that's just getting into the PC components scene, this can definitely be a point of confusion. So, here's the deal: 

Both AMD and Nvidia design GPUs, or graphics processing units, which is how they've both have built their reputation (AMD also makes CPUs). And, while both Team Red and Team Green will produce their own graphics cards, they only typically tend to do so for the higher end of their respective founders stacks. For Nvidia, these graphics cards are called "Founders Edition," which right now are exclusively found with the GeForce RTX 2060 and above. AMD will also manufacture its own versions of its high-end GPUs, though right now it's limited to the Radeon RX 5700 and RX 5700 XT. 

AMD and Nvidia both tackle these differently, though. Nvidia's Founders Edition cards feature premium coolers and are overclocked over the base spec, whereas AMD's cards are the basic spec. These are both the versions of the cards Nvidia and AMD will send us for review when a new GPU hits the market. For the most part, you can pick up these versions of the graphics cards, and you're pretty much guaranteed a good experience.

But, what about the lower end of the market? 

Well, with more affordable graphics cards like the recently-released AMD Radeon RX 5600 XT, both graphics card manufacturers will simply design the GPU, along with a general design for the board with power requirements, VRAM capacity, and so on. Everything else beyond the GPU, like the cooler design, BIOS, any additional overclock or lighting – that's all up to aftermarket graphics card manufacturers. Which is why you'll see so many different versions of every GPU. 

Typically, when Nvidia or AMD announce a graphics card at, say, $ 300, that's going to be the base-level price. You will be able to find graphics cards at this price point, but they'll typically be very basic. You'll get the bare minimum base clock speeds, along with a cooler that will get the job done but won't leave a ton of room for overclocking. 

You'll also find the same GPU in graphics cards that are much more expensive, too. These will typically have extremely beefy coolers with up to three fans and hefty overclocks that can see them perform much faster than the base-level spec, sometimes even seeing double-digit performance improvements.

What's the deal with the Radeon RX 5600 XT?

Seemingly in response to Nvidia dropping the price of the GeForce RTX 2060, AMD gave the green light to its aftermarket partners to release new VBIOS software, raising power consumption and performance to have a performance edge over Team Green's card. 

So, there will be a small window of time where users may have to update the VBIOS of their own graphics cards. Because historically this has been a risky procedure, we reached out to Sapphire, the manufacturer behind the specific Radeon RX 5600 XT we reviewed and we were told "The good news is that cards on sale in NA have already been updated to the latest BIOS". There is a chance, though, that a card slipped through the cracks and didn't get the update. But, in those cases Sapphire is still recommending customers make the update.

For the specific model we reviewed, we were assured that "with the card having dual BIOS the chances of causing a non-repairable error is very limited." We did specifically ask whether or not the cards would be covered by warranty if the BIOS flash went wrong, however, and we didn't get a very assuring answer. Instead we were just told that if anyone has any concerns to just "contact regional support". 

So, it seems like most of the Sapphire Pulse graphics cards that are out there either have the VBIOS already, or will be easy to update. And, of course, going forward, you won't have to worry about the whole VBIOS mess at all. But, the Sapphire Pulse is one graphics card in a sea of Radeon RX 5600 XTs.

Obviously, if there's a deluge of graphics cards out there, and only some of them are going to be updated with these new clock speeds and power targets, that would make it extremely confusing to consumers who are going to be jumping into the market for the first time. When we think of the people that would be going for a graphics card in this price range, there's probably a sizable portion that are just going to buy it right off the shelf at Best Buy for their first PC build. 

This isn't the same enthusiast audience that would go for an RTX 2080 Ti, who we expect would relentlessly scan through product pages to make sure it has the highest clock speeds and most robust cooling. 

To that end, we reached out to AMD for some clarity on this. Most importantly, we wanted to know if the entire Radeon RX 5600 XT lineup would be featuring this new VBIOS. AMD stopped short of confirming this is the case, instead telling us that "AMD has made the VBIOS update available to all its AIB partners. AIBs can choose to update select existing or upcoming RX 5600 XT models, depending on their respective product plans."

This basically tells us nothing. Of course AMD made the update available to all of its AIB, or aftermarket, partners. From the sound of it, though, this VBIOS update wasn't mandated for the 5600 XT lineup, which means that they won't all be created equal. 

Over the next few months, then, we're probably going to see a vast majority of Radeon RX 5600 XTs out there with the new VBIOS that are absolute beasts. However, particularly right around the lower end of the Radeon RX 5600 XT pricing scale, it's possible that some of the graphics cards won't be rocking this new software. 

Now, we have to be abundantly clear here. At TechRadar, we don't typically review a wide range of aftermarket graphics cards. There are simply too many of them, and we on the computing team simply don't have the bandwidth for that many graphics cards. As a general rule, if you want to be safe when buying a graphics card we've reviewed, you should go with the specific model we reviewed. We understand that there are a ton out there, and we definitely want to help if you have questions, so please reach out on Twitter or through email if you have any questions about any particular graphics card. 

There are plenty of outlets out there, however, that do review a wide swath of graphics card for every GPU, like our friends over at Tom's Hardware. We urge you to make sure you read reviews of the specific graphics card you're looking at to make sure it's up to snuff.  

Is the Radeon RX 5600 XT still worth getting?

Like we mentioned earlier, we tested the Radeon RX 5600 XT out of the box with the old VBIOS, so our star rating is entirely based on that basic VBIOS. Even if you get a basic Radeon RX 5600 XT, you can still expect a strong 1080p performer. 

After hearing about all of this commotion surrounding the Radeon RX 5600 XT, we went back, flashed the new VBIOS onto our review sample and ran through all of our testing again, and we included the new numbers down below. 

As you can see, after the new VBIOS, the Sapphire Pulse Radeon RX 5600 XT is now very comfortably ahead of the RTX 2060 in all tests except for Time Spy Ultra and Middle Earth: Shadow of War – and that's due to the limited 6GB VRAM. And, it's also important to keep in mind that the Sapphire Pulse Radeon RX 5600 XT is $ 289 (£269, about AU$ 420), rather than the $ 299 (£274, about AU$ 440) of the RTX 2060 Founders Edition. 

Especially here in a couple months when all of the cards on the market have the new VBIOS and customers are no longer at risk of bricking their cards by flashing the wrong VBIOS, this performance advantage puts AMD in the lead. Nvidia still has the RTX feature, though, something that AMD's cards simply can't do right now, no matter the VBIOS. 

So if ray tracing is a thing you're into, and it is very freaking cool, our advice is the same as what we came to in our review: buy Nvidia 100% of the time. But, if you just want raw performance and you're comfortable with potentially flashing the VBIOS, the AMD Radeon RX 5600 XT is potentially significantly faster and less expensive. 

Of course, that recommendation comes with a meaty caveat. You should absolutely do some research into the Radeon RX 5600 XT model you buy. At the end of the day, we've only tested one, so we can only speak to that specific unit. 

All the Radeon RX 5600 XT cards will be using the same GPU, however, so the variance isn't going to be like night and day. At the bare minimum, you should still be able to expect a passable 1080p experience, you just might not get as much as someone with a more expensive version of the card. So be wary, and again, feel free to reach out to us on the TechRadar computing team if you have any questions at all, and we'll be happy to give you some advice. 

At the end of the day, the way AMD handled this launch was not great, and it wasn't very consumer-friendly. The fact that it is willing to launch out a VBIOS update last minute like this, potentially putting consumer's purchases at risk is not a good look. But we still don't think it's a deal breaker, and the Radeon RX 5600 XT is still a beast of a graphics card – just make sure you do your research before jumping in. In fact, we think that's good advice for any graphics card you buy, period.

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