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My thoughts on Devil's Canyon

Posted on 14th Jul 2014 at 09:17 by Antony Leather with 19 comments

I think it's fair to say that Intel's latest CPUs have been met with a mixture of emotions by enthusiasts. At the crux of the issue is likely the fact that Intel is likely looking at markets away from the PC as tablets and smartphones take a big old slice of PC sales pie, despite the fact that PC sales have been predicted to and now seem to be stabilising.

That's not to say it's pulling out of the PC market - far from it. However, we haven't seen the kind of performance increases in new architectures or refreshes/ticks that we have done in the past. Even after AMD was placed firmly in catchup mode following the release of the first Core architecture, we still saw significant improvements in performance, for example, in the move from LGA775’s Penryn and Wolfdale to Clarkdale and again from Clarkdale/Lynnfield/Nehalem to Sandy Bridge.

My thoughts on Devil's Canyon My thoughts on Intel's new CPUs
Click to enlarge

There was a huge leap in performance going from a dual core Core 2 CPU to the dual core Core i5-530, which even gave previous generation quad cores such as the Q6600 a run for their money. Only in specific tests do we see anywhere near this level of performance increase in the post-Sandy Bridge era, and even then, the argument for upgrading, even including the LGA1155 to LGA1150 socket change, is only strong if you own a Sandy Bridge system: Ivy Bridge and Haswell owners needn't bother, although the additional features provided by the Z97 chipset may well temp you too.

However, there's another very good reason for upgrading to Devil's Canyon. Overclocking. It seems that as well as providing smoother power delivery and a better thermal interface material (I should add that people are still delidding these CPUs and seeing better cooling though), Intel has been speed-binning CPUs.

My thoughts on Devil's Canyon My thoughts on Intel's new CPUs
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In short, the widely varying overclocks we saw with Ivy Bridge and Haswell, which ranged from 4.3GHz to 5GHz, appear to be a thing of the past and the vast majority of new CPUs, the Pentium G3258 Anniversary Edition included, can reach 4.8GHz with relative ease. It's always been a lottery with CPUs and overclocking and retailers have often cherry picked CPUs too and sold them at higher prices for guaranteed overclocks. You'd need a good CPU cooler, and for some reason, 4.8GHz appear to be the limit unless you drastically boost the CPU voltage, but even so, this is 300-400MHz faster than you'd expect from a typical Core i5-4670K retail sample.

My thoughts on Devil's Canyon My thoughts on Intel's new CPUs
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To prove our point, as Intel annoyingly didn't ship out a Core i5-4690K to us, we bought our own retail copy and this performed exactly the same as our Core i7-4790K press sample. You only have to look at forum system spec signatures to see just how many people are having to be content with a 4.3GHz or 4.4GHz CPU. In addition, our 4.8GHz test system only drew 20W more at load and the CPU was much cooler than a 4.6GHz Core i5-4670K-based system, so it's quite feasible to have your CPU at 4.7GHz or 4.8GHz 24/7.

This on its own is a very appealing feature - after all, who wouldn't want a speed-binned CPU and in the past, retailers have even charged more for such sought-after silicon (remember G0-stepping Q6600's?) Yet Devil's Canyon CPUs didn't cost much more, if at all than their predecessors. Yes there’s not much if any improvement in IPC and most of the speed boosts at stock speed are due to increased CPU frequencies – the Core i7-4790K for example has a stock speed of 4GHz, which is a substancial 500MHz faster than its predecessor, but that’s the kind of thing you can do with a cherry-picked CPU.

There is, of course, the argument that Intel has shunned the PC and the PC enthusiast by just speed-binning Haswell cores, but if anything, this is showing that it still has a commitment to enthusiasts and in particular overclockers.

Yes I’d like to have seen more of a performance boost or shrunken manufacturing process, although the latter is what we'll be looking at with Broadwell, but I’d rather have a Devil’s Canyon CPU that’s guaranteed to hit 4.8GHz and provide some overclocking fun, than something that performs a few percent faster clock for clock than the previous round of LGA1150 CPUs and once again runs very hot under the collar once you’ve overclocked it along with being lucky to be able to get a stable overclock above 4.4GHz.

My thoughts on Devil's Canyon My thoughts on Intel's new CPUs
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This won’t be everyone’s cup of tea of course, but I’m willing to bet that most people reading this, especially those that are potential buyers of the new Core i5 and Core i7, would be overclocking their CPUs too. It probably cost Intel less to tweak the power delivery, use better thermal interface material and speed-bin some CPUs, than it would have done to make similar changes to what we saw moving from Sandy Bridge to Ivy Bridge, but I’m not really that bothered.

However, I do want to see some improvements with Broadwell. With Windows 9 due out at roughly the same time (although rumours are that K-series Broadwell CPUs may have been delayed yet again till next summer) and rumoured to be much more geared toward PC users, they could provide the perfect opportunity for pre-Haswell owners to reach for their wallets.

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Why mechanical keyboards aren't for me

Posted on 22nd May 2014 at 09:36 by Antony Leather with 85 comments

I've been in somewhat of a dilemma recently. My aging Saitek Eclipse membrane keyboard has been slowly giving up the ghost (falling to pieces is more accurate, but then it is over five years old) and I've been doing some research into what to get next. Being a tech journalist, having a good keyboard is akin to a carpenter owning a good set of tools - as such, money isn't really an object (you'd struggle to find a typical gaming keyboard that costs much more than £100 anyway).

The main issue, though, is that despite countless keyboards having come through our lab, I haven't really used one that I like - Matt can attest to this as I've been tapping on every keyboard that I could find and walking away disappointed. This is mainly because we, like most other tech review sites, are primarily focused on looking at mechanical switch keyboards - blue, black, red, brown etc. Cherry MX switches are certainly all the rage, but like quite a few other people I've come across, I haven't taken to the craze at all.

Why mechanical keyboards aren't for me *Mechanical Gaming Keyboards Aren't For Me
One of the variants of the Saitek Eclipse - a pretty good, if basic, membrane keyboard - click to enlarge

This is mainly because of the noise they make, and I've tried all four main switch colours on various different keyboards. I do have a thing about this, though - noise is one of my pet hates when it comes to PCs and it's one reason my main PC has been fully water-cooled since about 2003. However, I've seen and heard of plenty of instances of office colleagues receiving complaints about their noisy keyboards too.

Why mechanical keyboards aren't for me *Mechanical Gaming Keyboards Aren't For Me
Out of all the Cherry switches, the black was my favourite but even it was quite loud - click to enlarge

Even during a weekend recently when I borrowed a black switch keyboard for the weekend, my better half noticed instantly when I switched from membrane to Cherry switches, and spent the rest of the weekend in the garden. Admittedly, it was very pleasant weather outside but she knew exactly when I was on the PC from the noise. The noise isn't just annoying to other people, though - I find it pretty intrusive to type on these keyboards too, however more tactile and responsive they are.

This leaves people like me in a bit of a desperate situation. I love some of the features that are being added to the latest keyboards - USB hubs and backlighting especially, but finding a decent membrane keyboard with these features is extremely difficult. Recently, though, I found a possible solution - Cherry switch dampeners - specifically rubber o-rings that you can insert under the keys that reduce the noise caused when the keys bottom out.

Why mechanical keyboards aren't for me *Mechanical Gaming Keyboards Aren't For Me
The o-rings sit under the key caps preventing them from bottoming out - click to enlarge

I purchased a pack from OcUK and spent half an hour or so adding them to a Mionix Zibal 60 keyboard with black switches. The difference in noise was certainly noticeable - the bottoming out tapping noise was nearly eliminated and the feel of the black switches wasn't altered too much either, although it was still much noisier than my old Saitek Eclipse.

Why mechanical keyboards aren't for me *Mechanical Gaming Keyboards Aren't For Me
It takes a while to fit the o-rings but it's easy to do and does reduce noise without completely ruining the tactile feel - click to enlarge

However, my ears were now focusing on the upwards tapping noise - when you release a Cherry switch key, there's quite a thwack as the key bounces back up to its rest position. Sadly, there's nothing I know of that you can do about this and it seems that, for now, I'll have to give up my quest of modding a mechanical keyboard to suit my needs. Thankfully, the Saitek Eclipse is still available, albeit in a slightly revised version in the form of the Cyborg V5, so I now have one sitting on my desk.

Why mechanical keyboards aren't for me *Mechanical Gaming Keyboards Aren't For Me
The Cyborg V5 is still readily available and it's membrane feel has been tweaked compared to the older models and is quieter and more tactile - click to enlarge

It's even quieter than the original Eclipse - in fact it's keys are practically silent compared to my dampened Mionix Zibal 60. Have you struggled to get on with mechanical keyboards? Have you modded yours or found a good membrane alternative? Let me know in the comments.

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Do case manufacturers really understand water cooling?

Posted on 10th Apr 2014 at 08:59 by Antony Leather with 25 comments

After a couple of years of mediocre progress, we're seeing some genuine innovation with cases that are leaning ever more towards water cooling. Pretty much every medium to large case that's released these days - even smaller mini-ITX ones on occasion - sports double, triple or even quadruple fan mounts, and though these of course boost air cooling potential too, they also allow for larger radiators to be installed.

Manufacturers such as Corsair and NZXT are now in the habit of listing radiator compatibility in their case instruction manuals too - they're clearly taking it seriously and rightly so. Water cooling is one area of the PC industry that has certainly been growing over the last few years with all-in-one liquid coolers and full-on custom water cooling topping cooler graphs and featuring in many eye candy-filled systems - both modding projects and standard builds alike.

However, there is one small issue with many cases - specifically their radiator mounts. They're usually designed only for half-height radiators, which lack surface area and thus cooling potential compared to their full-height siblings, and many cases also seem to be listing radiator and water cooling compatibility as little more than tick-box features.

Do case manufacturers really understand water cooling?
Some manufacturers are shunning space for large air coolers in favour of radiator mounts such as Lian Li with is PC-V360 - Click to enlarge

My point here is that when you try to install a water cooling system in one, there's so little space that tube kinks become a real issue and there's also little thought as to where to put pumps and reservoirs. One big factor here is that case manufacturers aren't actually that concerned with custom water cooling loops (as in separate components connected together at home) and rather more with all-in-one systems such as a Corsair H80i.

It's not just Corsair and NZXT, who incidentally make some of the best all-in-one liquid coolers out there, that are doing this. After all, you can forgive them for promoting a combination of their own case and cooler, but plenty of other manufacturers are doing it too.

Do case manufacturers really understand water cooling?
Many all-in-one liquid coolers come equipped with half-height radiators while larger radiators are available with custom water cooling that can provide additional cooling capacity

For instance, I've recently borrowed the Lian Li PC-V360 we looked at recently to see how well it can cope with a water cooling system, seeing as it has a dedicated dual 120mm-fan radiator mount in the side panel and is too slim to fit large air coolers.

In short, it wasn't easy at all and I had to use anti-kinking springs on the tubing for everything to fit inside - and that's using the skinniest radiator I could find. Also, this turned out to be only just capable of cooling my overclocked Core i5-3570K and GeForce 660 Ti with the fans on full blast, which for me half defeats the point of water cooling, which is noise reduction.

Do case manufacturers really understand water cooling?
You usually have to opt for larger cases such as Corsair's Graphite 760T, but just a few changes could mean smaller cases are just as water cooling-friendly - click to enlarge

Even with an all-in-one liquid cooler things would be tricky, but as we speak I'm in the process of dismantling the system to go back to my trusted BitFenix Prodigy, which is much more water cooling friendly. Of course, that's my point; some cases do work well with water cooling, the Prodigy being one of them. It's also far from being a large case - the PC-V360 is taller and deeper but can't quite decide whether to jump off the fence on the air cooling side or water cooling side.

A lot of the issues, then, revolve around radiator depth, and at the moment, many case manufacturers are content to leave their cases with the bare minimum. You probably can't blame them to some extent as the vast majority of all-in-one liquid coolers use skinny radiators - one reason why a custom kit with a full-height double or triple 120mm-fan radiator will likely perform much better and quieter with an overclocked CPU.

So, what would I like to see? Better consideration for water cooling enthusiasts for one, but this could just as easily be brought about by all-in-one liquid cooler manufacturers beefing up their radiators too, especially where double fan radiators are concerned. That way, we don't only get better cooling from their own coolers, but you won't have to opt for enormous cases or go through the hassle of having to use multiple radiators too. It wouldn't require massive changes either - a few small modifications to existing case designs could make a world of difference.

How do you think current cases could be improved for water cooling purposes? Let us know in the forum.

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Intel's 2014 line-up: It's looking good for enthusiasts

Posted on 7th Apr 2014 at 13:20 by Antony Leather with 22 comments

As we reported here, Intel has announced the rest of its 2014 line-up. However, I for one am extremely excited by what the future holds for LGA1150.

With Broadwell being delayed and Haswell seemingly focusing more on power efficiency than giving anything significantly new to the enthusiast and performance user, I was pretty amazed when I read the finer details of Intel's latest roadmap that was announced on 19th March.

In the press release, the company has announced its intentions to better-support the enthusiast and overclocking communities and has detailed a couple of very interesting products.

The first is a new Pentium that will feature an unlocked multiplier to celebrate 20 years of the brand. Could this be the first cheap overclockable CPU since the likes of the Pentium G9650, all the way back on LGA1156? If so, it could prove a huge boon to those looking to overclock on a budget and give a massive boost to overclocking and the enthusiast market.

Intel's 2014 line-up: It's looking good for enthusiasts
Click to enlarge

At the moment we're forced to buy comparatively expensive K-series CPUs, and there have only been two to choose from for each of the last several generations too. It never used to be this way and certainly for the majority of my overclocking life, it wasn't a case of if you could overclock a CPU, it was a question of which one out of an entire range of CPUs was the best at it.

If the Pentium retails for current Pentium prices - ie around £80-100, but you can add 500-1000MHz to the clock speed, this could potentially match the performance of a Core i5, at least in software that isn't massively multi-threaded, and give AMD's cheap FX-series CPUs some competition too.

The new Pentium will be supported by current 8-series chipsets and also forthcoming 9-series chipsets, presumably Z97, although we'll have to wait and see whether it will need a BIOS update to run in current boards.

Intel's 2014 line-up: It's looking good for enthusiasts
Click to enlarge

Another gleeful bit of information is that Intel will also be launching its first 8-core desktop CPU. The monster will likely feature hyper-threading, for 16 threads in total, will also support DDR4 and will be supported by the new X99 chipset.

Ivy Bridge and Haswell CPUs meanwhile have suffered from hot-running chips, especially when you've overclocked them. It's fairly common for people to de-lid their CPUs - having done so with my Core i5-3570K, I can honestly say it made a huge difference. However, Intel appears to have admitted the issue as it will be introducing 'Improved thermal interface material' to the expected Haswell refresh CPUs, codenamed Devil's Canyon, due out this summer.

Intel's 2014 line-up: It's looking good for enthusiasts
Click to enlarge

As well as the expected performance boost that comes with every refresh, this could mean better overclocking too. The new CPUs are slated to be supported by a new Intel 9-series chipset, although it's likely Z87-based boards will support them via a BIOS update too.

Finally, there was scant information on Broadwell - Intel's 5th gen Core processor range. However, it did confirm the new CPUs would be based on a 14nm manufacturing process, will feature unlocked CPUs, and for the first time, offer its Iris Pro Graphics to socketed unlocked processors too, which could give AMD some competition in the APU department.

It looks like we could have some exciting new products just around the corner. Let us know your thoughts in the comments.

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Is 2014 the year that 4K goes mainstream?

Posted on 6th Mar 2014 at 08:42 by Antony Leather with 67 comments

Antony Leather
We’ve been lucky enough to have a resident 4K monitor here at bit-tech for a while and I’ve written about the so-called Ultra HD experience elsewhere too. It is, for the most part, mightily impressive and not just in games either.

Anything that benefits from a higher pixel density is markedly improved, from viewing images and movies, to simple content creation. The sharpness on offer compared to current 30in 2,560 x 1,600 displays that boast some of the highest pixel densities is palpable, even staring at the desktop.

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Are low-power desktop CPUs worth buying?

Posted on 6th Oct 2013 at 12:43 by Antony Leather with 22 comments

Antony Leather
It's easy to forget that Intel and AMD have low-power versions of most of their current line-up of CPUs. For most of us there's little reason to consider them, with them only registering on our radar when it comes to thinking about all-in-ones, media PCs or net tops. There's a good reason for this too. While they have lower power consumption, these CPUs are very often clocked slower than their full-fat counterparts but cost noticeably more.

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Super-wide monitors - the next big thing?

Posted on 11th Jul 2013 at 08:24 by Antony Leather with 55 comments

Antony Leather
The whole 16:9 vs 16:10 argument is a long-raging one. However, there’s a new kid on the block which looks set to create a whole new camp in the exchange of words over which aspect ratio is best. Super-wide monitors are still pretty scarce, with just a handful available at the moment, but before 16:10 fans dismiss them as stretched heresy, take it from this Dell U2412M owner that you shouldn’t knock them till you’ve tried one.

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Don’t be fooled by Laptop CPUs

Posted on 25th May 2013 at 16:31 by Antony Leather with 64 comments

Antony Leather
I was speaking to a friend recently and we started discussing laptops. Specifically, he wanted something to replace his desktop PC, which sported an Intel Core-i3 2100 Sandy Bridge CPU.

He was moving to a flat and didn’t have the space for a PC, but still wanted something with some grunt to edit photos and videos. He’d clearly given it some consideration, but I was shocked when he started quoting laptop specs and how he thought they’d be twice or even three times as fast as his PC.

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The downside to cheap storage

Posted on 17th May 2013 at 08:16 by Antony Leather with 51 comments

Antony Leather
Casting my mind back 20 years or so, I remember when hard disks were barely breaching the 1GB barrier. Even though programs at the time generally took up a lot less space than they do today, space was very much a premium.

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A Week With Windows 8

Posted on 28th Apr 2013 at 16:26 by Antony Leather with 91 comments

Antony Leather
Windows 7 was largely well received from the moment it was released. It looked and felt a lot like XP and Vista, but with some noticeable and useful tweaks including everything from Snap (aligning two windows side by side in a matter of seconds) to Snipping tool and decent SSD support. It’s little wonder, then, that Windows 7 sold very well indeed.

With Windows 8, however, Microsoft has made the most significant visible changes to the OS that we’ve seen in over a decade, and most reviews have been far less glowing. So when ordering my new laptop the plan was to install Windows 7 on it as soon as it arrived. But, not one to blindly take other people's word for it, when the laptop did arrive I thought I’d relent on my original plan and actually give Windows 8 a go for a week. Here’s how I got on.

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