With days to go before we fly out to Taipei, Taiwan for this year's Computex show, EVGA's new 1080 Ti SC2 Hybrid card arrived for tear-down and analysis. We might not have time to get the review dialed-in on this one before the show, but we figured the least we could do is our inaugural disassembly of the card.
EVGA's 1080 Ti SC2 Hybrid makes a few changes over previous Hybrid cards, as it seems the liquid+air amalgams have grown in popularity over the past few generations. Immediately of note, the shroud now carries some 'tessellation' paint embellishments, an illuminated name plate, and a cable tether for the radiator fan. Small increments.
Fractal’s Celsius S36 debuts alongside the company’s S24, coolers sized at 360mm and 240mm, respectively. The Celsius series uses an Asetek Gen5 pump, identical to the pump found on the EVGA CLC, NZXT X42/52/62, and Corsair H115i/H100iV2 coolers. This is a semi-custom Asetek solution that’s been loosely customized by Fractal Design, primarily focusing on the addition of G1/4” fittings (rad-side only), on-pump speed tuning, and an on-rad fan hub. It’s not as customized as, say, the NZXT Kraken series, but NZXT’s products also run more expensive. Fractal is looking at a launch price of $120 for the S36 that we’re reviewing today, and $110 for the S24.
Our focuses are on thermals and noise – not that you can focus on much else when talking coolers – with some new testing that looks at normalized noise output. We debuted this testing in our ASUS ROG Strix review and have carried it over to coolers.
Fractal’s coolers use 120mm fans that run a maximum RPM nearing 2000, with variable pump RPM from ~2000~3000. In our testing, though, it seemed a little simpler than that – pump RPM is based on liquid temp, and as we found in our 7700K review (the hottest CPU we've tested), liquid temp never really exceeds 30C. Given Fractal's curve, that means the pump stays at 2000RPM almost all the time. Rather than use software or suggest straight BIOS control – which we prefer – Fractal’s gone with a toggleable pump plate that switches into auto or PWM options. We’ve tested variable pump speeds in the past and haven’t found major differences in cooling efficacy, which is more heavily relegated to the fan spec and radiator size than anything else. This is more of a noise impact. We tested using the default, out-of-box “auto” setting, which kept our pump RPM fixed nearly perfectly at ~1960 throughout the tests (liquid temperature doesn't ramp up enough to push higher).
Fan speeds were manually controlled for the tests, though users could connect the fans to the on-rad hub. More on this in the conclusion.
Let’s get on with the testing, then run through the accessories and conclusion.
Our Titan Xp Hybrid mod is done, soon to be shipped back to its owner in its new condition. Liquid cooling mods in the past have served as a means to better understand where a GPU could perform given a good cooler, and are often conducted on cards with reference coolers. The Titan Xp won’t have AIB partner cooler models, and so building a Hybrid card gives us a glimpse into what could have been.
In today’s benchmarks and conclusion of the Titan Xp Hybrid mod, we’ll cover thermals and noise levels extensively, overclocking, and throw in some gaming benchmarks.
We just posted our second part of the Titan Xp Hybrid mod, detailing the build-up process for adding CLCs to the Titan Xp. The process is identical to the one we detailed for the GTX 1080 Ti FE card, since the PCB is effectively equal between the two devices.
For this build, we added thermocouples to the VRAM and VRM components to try and determine if Hybrid mods help or hurt VRAM temperatures (and, with that part of testing done, we have some interesting results). Final testing and benchmarking is being run now, with plans to publish by Monday.
In the meantime, check out part 2 below:
We’ve been one of the most active in modding newly-launched GPUs with “hybrid” cooling solutions, and even recently began running thermal tests on VRM components alongside said mods. Before we ever did hybrid mods, NZXT launched its G10 bracket – back in 2013 – to tremendous success and adoption. That adoption died off over time, mostly due to new GPU launches that weren’t clear on compatibility, and NZXT eventually was met by competition from Corsair’s HG10.
Corsair, NZXT, Thermaltake, and EVGA closed-loop liquid coolers presently have no official AM4 retention kit support, leaving the companies exposed to questions from customers waiting to build Ryzen systems. This delay has affected the most popular coolers presently on the market, to include the Corsair H100iV2, H115i, NZXT X62/52/42, and new EVGA CLCs, but hasn’t affected all CLCs available. Some SIs, for instance, have blown throw stock of CoolIT-supplied CLCs from Corsair (like the H110i and H60), but haven’t been able to fill orders of units that use a four-screw mounting mechanism.
We have details for you on when your brackets will be available and on what caused the delays to begin with. This content contains several official comments and statements from the affected cooling manufacturers.
We’ve fixed the GTX 1080 Ti Founders Edition ($700) card. As stated in the initial review, the card performed reasonably close to nVidia’s “35% > 1080” metric when at 4K resolutions, but generally fell closer to 25-30% faster at 4K. That’s really not bad – but it could be better, even with the reference PCB. It’s the cooler that’s holding nVidia’s card back, as seems to be the trend given GPU Boost 3.0 + FE cooler designs. A reference card is more versatile for deployment to the SIs and wider channel, but for our audience, we can rebuild it. We have the technology.
“Technology,” here, mostly meaning “propylene glycol.”
Our review of the nVidia GTX 1080 Ti Founders Edition card went live earlier this morning, largely receiving praise for jaunts in performance while remaining the subject of criticism from a thermal standpoint. As we've often done, we decided to fix it. Modding the GTX 1080 Ti will bring our card up to higher native clock-rates by eliminating the thermal limitation, and can be done with the help of an EVGA Hybrid kit and a reference design. We've got both, and started the project prior to departing for PAX East this weekend.
This is part 1, the tear-down. As the content is being published, we are already on-site in Boston for the event, so part 2 will not see light until early next week. We hope to finalize our data on VRM/FET and GPU temperatures (related to clock speed) immediately following PAX East. These projects are always exciting, as they help us learn more about how a GPU behaves. We did similar projects for the RX 480 and GTX 1080 at launch last year.
Here's part 1:
EVGA’s CLC 120 cooler fell on our bench shortly after the EVGA CLC 280 ($130), which we reviewed last week against the NZXT X62 & Corsair H115i. The EVGA CLC 120 prices itself at $90, making it competitive with other RGB-illuminated coolers, but perhaps a bit steep in comparison to the cheaper 120mm AIOs on the market. Regardless, 120mm territory is where air coolers start to claw back their value in performance-to-dollar; EVGA’s chosen a tough market to debut a low-end cooler, despite the exceptionally strong positioning of their CLC 280 (as stated in our review).
EVGA’s closed-loop liquid cooler, named “Closed-Loop Liquid Cooler,” will begin shipping this month in 280mm and 120mm variants. We’ve fully benchmarked the new EVGA CLC 280mm versus NZXT’s Kraken X62 & Corsair’s H115iV2 280mm coolers, including temperature and noise testing. The EVGA CLC 280, like both of these primary competitors, is built atop Asetek’s Gen5 pump technology and primarily differentiates itself in the usual ways: Fan design and pump plate/LED design. We first discussed the new EVGA CLCs at CES last month (where we also detailed the new ICX coolers), including some early criticism of the software’s functionality, but EVGA made several improvements prior to our receipt of the review product.
The EVGA CLC 280 enters the market at $130 MSRP, partnered with the EVGA CLC 120 at $90 MSRP. For frame of reference, the competing-sized NZXT Kraken X62 is priced at ~$160, with the Corsair H115i priced at ~$120. Note that we also have A/B cowling tests toward the bottom for performance analysis of the unique fan design.
Relatedly, we would strongly recommend reading our Kraken X42, X52, & X62 review for further background on the competition.