EVGA’s RTX 2070 XC Ultra gave us an opportunity to compare the differences between NVIDIA’s varied RTX 2070 SKUs, including a low-end TU106-400 and a higher-end TU106-400A. The difference between these, we’ve learned, is one of pre-selection for ability to attain higher clocks. The XC Ultra runs significantly higher under Boost behavior than the 2070 Black does, which means that there’s now more to consider in the $70 price gap between the cards than just the cooler. This appears to be one of the tools available to board partners so that they can reach the $500 MSRP floor, but there is a performance cost as a result. With Pascal, the performance cost effectively boiled-down to one predicated on thermal and power headroom, but not necessarily chip quality. Turing is different, and chip quality is now a potential limiter.
In this review of the EVGA RTX 2070 XC Ultra, we’ll also be discussing performance variability between the two 2070 GPU SKUs. These theories should extrapolate out to other NVIDIA cards with these sub-GPU options. Note that we are just going to focus on the 2070s today. If you want to see how we compare the 2070’s value versus Vega or Pascal, check our 2070 review and Vega 56 power mod content pieces.
The real discussion is going to be in overclocking and thermals, as gaming performance typically isn’t too varied intra-GPU. That said, the GPU changes between these two (technically), so that’ll make for an interesting data point.
We previously deep-dived on MCE (Multi-Core Enhancement) practices with the 8700K, revealing the performance variance that can occur when motherboard makers “cheat” results by boosting CPUs out of spec. MCE has become less of a problem with Z390 – namely because it is now disabled by default on all boards we’ve tested – but boosted BCLKs are the new issue.
If you think Cinebench is a reliable benchmark, we’ve got a histogram of all of our test results for the Intel i9-9900K at presumably stock settings:
(Yes, the scale starts at non-0 -- given a range of results of 1976 to 2300, we had to zoom-in on the axis for a better histogram view)
The scale is shrunken and non-0 as the results are so tightly clustered, but you can still see that we’re ranging from 1970 cb marks to 2300 cb marks, which is a massive range. That’s the difference between a heavily overclocked R7 2700 and an overclocked 7900X, except this is all on a single CPU. The only difference is that we used 5 different motherboards for these tests, along with a mix of auto, XMP, and MCE settings. The discussion today focuses on when it is considered “cheating” to modify CPU settings via BIOS without the user’s awareness of those changes. The most common change is to the base clock, where BIOS might report a value of 100.00, but actually produce a value of 100.8 or 100.9 on the CPU. This functionally pre-overclocks it, but does so in a way that is hard for most users to ever notice.
After the post-apocalyptic hellscape that was the RTX 2080 launch, NVIDIA is following it up with lessons learned for the RTX 2070 launch. By and large, technical media took issue with the 2080’s price hike without proper introduction to its namesake feature—that’d be “RTX”—which is still unused on the 2070. This time, however, the RTX 2070 launches at a much more tenable price of $500 to $600, putting it at rough price parity with the GTX 1080 hanger-on stock. It becomes easier to overlook missing features (provided the buyer isn’t purchasing for those features) when price and performance parity are achieved with existing products and rendering techniques. This is what the RTX 2070 looks forward to most.
Our EVGA RTX 2070 Black review will focus on gaming benchmarks vs. the GTX 1070, GTX 970, Vega 64, and other cards, as well as in-depth thermal testing and noise testing. We will not be recapping architecture in this content; instead, we recommend you check out our Turing architecture deep-dive from the RTX 2080 launch.
We're ramping into GPU testing hard this week, with many tests and plans in the pipe for the impending and now-obvious RTX launch. As we ramp those tests, and continue publishing our various liquid metal tests (corrosion and aging tests), we're still working on following hardware news in the industry.
This week's round-up includes a video-only inclusion of the EVGA iCX2 mislabeling discussion that popped-up on reddit (links are still below), with written summaries of IP theft and breach of trust affecting the silicon manufacturing business, "GTX" 2060 theories, the RTX Hydro Copper and Hybrid cards, Intel's 14nm shortage, and more.
We visited EVGA’s suite for a look at the new OC Robot and built-in BIOS stress testing update for the X299 Dark motherboards. For the new X299 Micro 2 motherboard, we also learned the following of the VRM spec:
- VCCIN : IR35201(Controller1 - 5PH double to 10PH) + IR3556 x10
- VSA+VCCIO : IR35204(Controller2 - 1+1PH) + IR3556 (1+1)
- VSM+VPP_C01 : IR35204(Controller3 - 1+1PH) + TDA88240 (1+1)
- VSM+VPP_C23 : IR35204(Controller4 - 1+1PH) + TDA88240 (1+1)
At EVGA’s headquarters in New Taipei City, Taiwan, GamersNexus received a hands-on overview of the company’s new semi-closed loop liquid nitrogen cooling setup. The setup was created by K|NGP|N and TiN, both of whom work in the Taiwan office, to increase overclocking efficiency and reduce LN2 usage to only necessary quantities. Typically, extreme overclocking involves manual pouring of liquid nitrogen (LN2) from a thermos, which the overclocker can either manually refill from the LN2 tanks or can refill from the exhaust. With this new system, K|NGP|N is able to circulate LN2 based upon software input of desired temperatures, with used LN2 getting pushed through a series of flexible steel tubing and out of an exit manifold. The result yields somewhat reusable LN2 and eliminates the hands-on thermos pouring element of XOCing, allowing overclockers to focus on the result and tuning. Theoretically, you could run off of large LN2 tanks (~180L) at conservative temperatures for weeks on end, then swap tanks and use the collected “runoff.”
Recapping our previous X299 VRM thermal coverage, we found the ASUS X299 Rampage Extreme motherboard to operate against its throttle point when pushing higher overclocks (>4GHz) on the i9-7980XE CPU. The conclusion of that content was, ultimately, that ASUS wasn’t necessarily at fault, but that we must ask whether it is reasonable to assume such a board can take the 500-600W throughput of an overclocked 7980XE CPU. EVGA has now arrived on the scene with its X299 DARK motherboard, which is seemingly the first motherboard of this year to use a fully finned VRM heatsink in a non-WS board. Our EVGA X299 DARK review will initially look at temperatures and VRM throttling on the board, and ultimately look into how much the heatsink design impacts performance.
EVGA went crazy with its X299 DARK motherboard. The craziest thing they did, evidently, was add a real heatsink to it: The heatsink has actual fins, through which a heatpipe routes toward the IO and into another large aluminum block, which is decidedly less finned. The tiny fans on top of the board look a little silly, but we also found them to be unnecessary in most use cases: Just having a real heatsink gets the board far enough, it turns out, and the brilliance of the PCH fan is that it pushes air through M.2 slots and the heatsink near the IO.
EVGA’s X299 DARK motherboard uses some brilliant designs, but also stuff that’s pretty basic. A heatsink with fins, for one, is about as obvious as it gets: More surface area means more spread of heat, and also means fans can more readily dissipate that heat. The extra four phases on the motherboard further support EVGA in dissipating heat over a wider area. EVGA individually places thermal pads on each MOSFET rather than use a large strip, which is mostly just good attention to detail; theoretically, this does improve the cooling performance, but it is not necessarily measurable. Two fans sit atop the heatsink and run upwards of 10,000RPM, with a third, larger fan located over the PCH. The PCH only consumes a few watts and has no need for active cooling, but the fan is located in such a way that (A) it’s larger, and therefore quieter and more effective, and (B) it can push air down the M.2 chamber for active cooling, then force that air into the IO shroud. A second half of the VRM heatsink (connected via heatpipe to the finned sink) is hidden under the shroud, through which the airflow from the PCH fan may flow. That’s exhausted out of the IO shield. Making a 90-degree turn does mean losing about 30% pressure, and the heatsink is far away from the PCH, but it’s enough to get heat out of the hotbox that the shroud creates.
Here's an example of what clock throttling looks like when encountering VRM temperature limits, as demonstrated in our Rampage VI Extreme content:
Having gone over the best CPUs, cases, some motherboards, and soon coolers, we’re now looking at the best GTX 1080 Tis of the year. Contrary to popular belief, the model of cooler does actually matter for video cards. We’ll be going through thermal and noise data for a few of the 1080 Tis we’ve tested this year, including MOSFET, VRAM, and GPU temperatures, noise-normalized performance at 40dBA, and the PCB and VRM quality. As always with these guides, you can find links to all products discussed in the description below.
Rounding-up the GTX 1080 Tis means that we’re primarily going to be focused on cooler and PCB build quality: Noise, noise-normalized thermals, thermals, and VRM design are the forefront of competition among same-GPU parts. Ultimately, as far as gaming and overclocking performance, much of that is going to be dictated by silicon-level quality variance, and that’s nearly random. For that reason, we must differentiate board partner GPUs with thermals, noise, and potential for low-thermal overclocking (quality VRMs).
Today, we’re rounding-up the best GTX 1080 Ti graphics cards that we’ve reviewed this year, including categories of Best Overall, Best for Modding, Best Value, Best Technology, and Best PCB. Gaming performance is functionally the same on all of them, as silicon variance is the larger dictator of performance, with thermals being the next governor of performance; after all, a Pascal GPU under 60C is a higher-clocked, happier Pascal GPU, and that’ll lead framerate more than advertised clocks will.
There aren’t many ways for cooling manufacturers to differentiate atop of a supplier’s product, like the Asetek Gen5 pumps, but you’d be surprised at how much goes into them behind the scenes. NZXT was the first manufacturer permitted to build a fully custom and complex PCB for its RGB-illuminated Kraken coolers, followed-up in short order by EVGA, who dropped the price significantly for the same-size radiators. We’re reviewing the new EVGA CLC 240 today, following-up our previous (positive) CLC 280 and (negative) CLC 120 reviews.
Although they’re all ultimately Asetek products, the EVGA CLC series has thus far competed well with the NZXT Kraken and Corsair H-series coolers. EVGA aimed to strike a balance between the higher-cost features of the Kraken coolers (like manufacturer-customized lighting) and the more function-focused Corsair H-series coolers. The effort yielded ~$130 280mm closed-loop liquid coolers, coming in below the $150-$160 Kraken X52/X62 units and around the H115i (presently $140).
We generally liked the price:performance positioning of the CLC 280 unit, but found the CLC 120 nearly impossible to justify. The 120 wasn’t a far step from good 240mm coolers, like the H100i V2, but EVGA only recently began shipping CLC 240 units.
This week's hardware news recap includes some follow-up discussion from our Intel i7-8700K review, primarily focused on addressing incorrect references of thermal testing cross-review/cross-reviewer. We also talk Coffee Lake availability and pricing, as it was unknown at time of finalizing the review, and dive into some of the new Z370 motherboards. EVGA's Z370 FTW and Classified K have both been announced (and we followed-up with EVGA to get pricing information), alongside a new Micro board in Z370 format.
Beyond this, we've got the usual listing of new product announcements and industry news, including USB3.2's specification, headless video cards, Star Citizen 3.0 alpha pushed to Evocati, and AIM's death.
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