The past week has been abnormally packed with hardware news, with several heavy-hitter items from Intel and AMD partners alike. The headlining story highlights Intel's prototype dGPU unveil -- something that we won't see more of for years, if at all -- and talks Intel's initial plans for its dGPU component. This comes shortly after Intel's very public hiring of former RTG Chief Raja Koduri, who recently set to work on Intel's new dGPU division. It is likely that the prototype discussed has been in the works for a while, but Koduri's work will no doubt be visible in the coming years.
Other news items include the accidental publication of Intel Celeron CPUs by Newegg, including a new G49X0 series (G4920, G4900), and the non-K alternatives of the 8500 and 8600 i5 CPUs. For AMD, we saw news reports about an upcoming EKWB Threadripper Monoblock for MSI motherboards, which should be useful in full loop scenarios where the VRM thermals must be controlled. Several other news items are also present in this round-up. Find the show notes below.
We previously went through the process of dismantling, draining, and refilling an Enermax Liqtech TR4 closed-loop liquid cooler (some call these "AIOs") in an attempt to determine how serviceable the CLCs are. This particular cooler wasn't too difficult to refill, as we showed in our accompanying video, but we still wanted to check thermal results to see if the cooler had worsened in performance. The goal wasn't to make it better, just to see if it could be serviced, and without negative impact to cooling ability.
Keep in mind that fluid selection will matter: If the CLC mixes metals, as many do, you'll want to include a biocide of some sort in your refill. There are plenty of mixtures that would achieve this. We used an EK Cryofuel with biocide additive, with distilled water as the primary component (>90%) for the liquid composition. Our thermal test methodology is the same as in all our Threadripper cooler reviews, including the Enermax 360 vs 240 review. If curious how we tested, head over there.
The recent trend in memory prices have put a major hold on our PC build guides. For years – most of its 10-year existence – GN has published nearly monthly gaming & workstation PC build guides. We haven’t published one for several months now, and that’s because of the simultaneous collision of memory and video card prices. The two all-time high price jumps on GPUs (miner+gamer joint demand) and RAM (supply shortage & process switch) made PC building nearly impossible to afford. There’s been some alleviation of that lately, but not in memory prices directly. The onslaught of Cyber Monday and Black Friday sales have brought down other components enough to more or less neutralize the insane RAM pricing; now, for instance, the 1950X is $200 off MSRP, which instantly counters the RAM pricing being 2x what it should be. For this reason, we decided to revisit our PC build guides with a Threadripper 1950X workstation, built for 3D rendering (Blender), H264 video encoding with Handbrake, and some other batch processing work and Adobe Premiere work.
A Note About PC Builds
PC builds always get comments from people who want to express their infinite wisdom and intelligence in comments fields, likely because, of all the things we publish, PC building is the item with which folks have the most experience. A note, here: We’re building based on two primary criteria, which include:
- - We have used and tested the parts, and trust them for this build.
- - We are using this build internally as a temporary encode/render system, which means that it’s mostly to suit our needs; if you can do better, great, but we’re going for a workstation that can get our jobs done, then be unbuilt.
There are places you can cut costs on this build. We’ll include alternative parts listings for those instances.
In the calm before the global celebration of consumerism, it would seem that the entire range of AMD processors has gone on sale – or most of it, anyway. Several of these have tempted us for internal machines, at this point. The Threadripper 1950X has been available as low as $800 (from the usual $1000) price-point, the R7 CPUs are cut into R5 prices -- $260 for the 1700X is now common, and R5 CPUs have also been dropping in price. The timing is excellent, too, as we just posted our Best CPUs of 2017 Awards, which include several of these sale items.
Enermax's Liqtech TR4 liquid cooler took us by surprise in our 240mm unit review, and again in our Liqtech 360 TR4 review. The cooler is the first noteworthy closed-loop liquid cooler to accommodate Threadripper, and testing proved that it's not just smoke and mirrors: The extra coldplate size enables the Liqtech to overwhelm any of the current-market Asetek CLCs, which use smaller coldplates that are more suitable to Ryzen or Intel CPUs.
We’re reviewing the 360mm Enermax TR4 Liqtech cooler today, matched-up against the 240mm variant and with a special appearance from the Noctua NH-U14S TR4 unit. We previously benchmarked the Enermax Liqtech 240 TR4 closed-loop liquid cooler versus the Noctua NH-U14S, resulting in somewhat interesting findings. The larger version of the Liqtech, the 360mm cooler, is now on the bench for comparison with an extra fan and a wider radiator. The NH-U14S returns, as does the X62 (mostly to demonstrate smaller coldplate performance).
We’re still using our 1950X CPU on the Zenith platform, overclocked to 4.0GHz at 1.35Vcore. The point of the OC isn’t to drive the highest possible clock, but to generate a larger power load out of the CPU (thus stressing to a point of better demonstrating performance deltas).
At time of publication, the Enermax Liqtech 240 TR4 is priced at ~$130, with the 360 at ~$150, and with the NH-U14S at ~$80.
This testing kicked-off because we questioned the validity of some cooler testing results that we saw online. We previously tested two mostly identical Noctua air coolers against one another on Threadripper – one cooler had a TR4-sized plate, the other had an AM-sized plate – and saw differences upwards of 10 degrees Celsius. That said, until now, we hadn’t tested those Threadripper-specific CPU coolers versus liquid coolers, specifically including CLCs/AIOs with large coldplates.
The Enermax Liqtech 240 TR4 closed-loop liquid cooler arrived recently, marking the arrival of our first large coldplate liquid cooler for Threadripper. The Enermax Liqtech 240 TR4 unit will make for a more suitable air vs. liquid comparison versus the Noctua NH-U14S TR4 unit and, although liquid is objectively better at moving heat around, there’s still a major argument on the front of fans and noise. Our testing includes the usual flat-out performance test and 40dBA noise-normalized benchmarking, which matches the NH-U14S, NH-U12S, NZXT Kraken X62 (small coldplate), and Enermax Liqtech 240 at 40dBA for each.
This test will benchmark the Noctua NH-U14S TR4-SP3 and NH-U12S TR4-SP3 air coolers versus the Enermax Liqtech 240 TR4 & NZXT Kraken X62.
The units tested for today include:
Before Vega buried Threadripper, we noted interest in conducting a simple A/B comparison between Noctua’s new TR4-sized coldplate (the full-coverage plate) and their older LGA115X-sized coldplate. Clearly, the LGA115X cooler isn’t meant to be used with Threadripper – but it offered a unique opportunity, as the two units are largely the same aside from coldplate coverage. This grants an easy means to run an A/B comparison; although we can’t draw conclusions to all coldplates and coolers, we can at least see what Noctua’s efforts did for them on the Threadripper front.
Noctua’s NH-U14S cooler possesses the same heatpipe count and arrangement, the same (or remarkably similar) fin stack, and the same fan – though we controlled for that by using the same fan for each unit. The only difference is the coldplate, as far as we can tell, and so we’re able to more easily measure performance deltas resultant primarily from the coldplate coverage change. Noctua’s LGA115X version, clearly not for TR4, wouldn’t cover the entire die area of even one module under the HIS. The smaller plate maximally covers about 30% of the die area, just eyeballing it, and doesn’t make direct contact to the rest. This is less coverage than the Asetek CLCs, which at least make contact with the entire TR4 die area, if not the entire IHS. Noctua modified their unit to equip a full-coverage plate as a response, including the unique mounting hardware that TR4 needs.
The LGA115X NH-U14S doesn’t natively mount to Threadripper motherboards. We modded the NH-U14S TR4 cooler’s mounting hardware with a couple of holes, aligning those with the LGA115X holes, then routed screws and nuts through those. A rubber bumper was placed between the mounting hardware and the base of the cooler, used to help ensure even and adequate mounting pressure. We show a short clip of the modding process in our above video.
Storing multiple terabytes of video content monthly is, obviously, a drive-intensive business -- particularly when using RAID for local editing scratch disks, a NAS for internal server access, and web remote backup. Rather than buy more drives and build a data library that is both impossible to manage and impossible to search, we decided to use our disks smarter and begin compressing broll as it falls into disuse. Deletion is the final step, at some point, but the compression is small enough as to be a non-concern right now. We're able to compress our broll anywhere from 50-86%, depending on what kind of content is contained therein, and do so with nearly 0 perceptible impact to content quality. All that's required is a processor with a lot of threads, as that's what we wrote our compression script to use, and some extra power each month.
Threadripper saw use recently in a temporary compression rig for us, as we wanted to try the CPU out in a real-world use case for our day-to-day operations. The effort can be seen below:
Visiting AMD during the Threadripper announcement event gave us access to a live LN2-overclocking demonstration, where one of the early Threadripper CPUs hit 5.2GHz on LN2 and scored north of 4000 points in Cinebench. Overclocking was performed on two systems, one using an internal engineering sample motherboard and the other using an early ASRock board. LN2 pots will be made available by Der8auer and KINGPIN, though the LN2 pots used by AMD were custom-made for the task, given that the socket is completely new.
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