Steve started GamersNexus back when it was just a cool name, and now it's grown into an expansive website with an overwhelming amount of features. He recalls his first difficult decision with GN's direction: "I didn't know whether or not I wanted 'Gamers' to have a possessive apostrophe -- I mean, grammatically it should, but I didn't like it in the name. It was ugly. I also had people who were typing apostrophes into the address bar - sigh. It made sense to just leave it as 'Gamers.'"
First world problems, Steve. First world problems.
AMD’s X570 chipset marks the arrival of some technology that was first deployed on Epyc, although that was done through the CPU as there isn’t a traditional chipset. With the shift to PCIe 4, X570 motherboards have grown more complex than X370 and X470, furthered by difficulties cooling the higher power consumption of X570. All of these changes mean that it’s time to compare the differences between X370, X470, and X570 motherboard chipsets, hopefully helping newcomers to Ryzen understand the changes.
The persistence of AMD’s AM4 socket, still slated for life through 2020, means that new CPUs are compatible with older chipsets (provided the motherboard makers update BIOS for detection). It also means that older CPUs (like the reduced price R5 2600X) are compatible with new motherboards, if you for some reason ended up with that combination. The only real downside, aside from potential cost of the latter option, is that new CPUs on old motherboards will mean no PCIe Gen4 support. AMD is disabling it in AGESA at launch, and unless a motherboard manufacturers finds the binary switch to flip in AGESA, it’ll be off for good. Realistically, this isn’t all that relevant: Most users will never touch the bandwidth of Gen4 for this round of products (in the future, maybe), and so the loss of running a new CPU on an old motherboard may be outweighed by the cost savings of keeping an already known-good board, provided the VRM is sufficient.
AMD’s technical press event bore information for both AMD Ryzen and AMD Navi, including overclocking information for Ryzen, Navi base, boost, and average clocks, architectural information and block diagrams, product-level specifications, and extreme overclocking information for Ryzen with liquid nitrogen. We understand both lines better now than before and can brief you on what AMD is working on. We’ll start with Navi specs, die size, and top-level architectural information, then move on to Ryzen. AMD also talked about ray tracing during its tech day, throwing some casual shade at NVIDIA in so doing, and we’ll also cover that here.
First, note that AMD did not give pricing to the press ahead of its livestream at E3, so this content will be live right around when the prices are announced. We’ll try to update with pricing information as soon as we see it, although we anticipate our video’s comments section will have the information immediately. UPDATE: Prices are $450 for the RX 5700 XT, $380 for the RX 5700.
AMD’s press event yielded a ton of interesting, useful information, especially on the architecture side. There was some marketing screwery in there, but a surprisingly low amount for this type of event. The biggest example was taking a thermographic image of two heatsinks to try and show comparative CPU temperature, even though the range was 23 to 27 degrees, which makes the delta look astronomically large despite being in common measurement error. Also, the heatsink actually should be hot because that means it’s working, and taking a thermographic image of a shiny metal object means you’re more showing reflected room temperature or encountering issues with emissivity, and ultimately they should just be showing junction temperature, anyway. This was our only major gripe with the event -- otherwise, the information was technical, detailed, and generally free of marketing BS. Not completely free of it, but mostly. The biggest issue with the comparison was the 28-degree result that exited the already silly 23-27 degree range, making it look like 28 degrees was somehow massively overheating.
Let’s start with the GPU side.
Our viewers have long requested that we add standardized case fan placement testing in our PC case reviews. We’ve previously talked about why this is difficult – largely logistically, as it’s neither free in cost nor free in time – but we are finally in a good position to add the testing. The tests, we think, clearly must offer some value, because it is one of our most-requested test items over the past two years. We ultimately want to act on community interests and explore what the audience is curious about, and so we’ve added tests for standardized case fan benchmarking and for noise normalized thermal testing.
Normalizing for noise and running thermal tests has been our main, go-to benchmark for PC cooler testing for about 2-3 years now, and we’ve grown to really appreciate the approach to benchmarking. Coolers are simpler than cases, as there’s not really much in the way of “fan placement,” and normalizing for a 40dBA level has allowed us to determine which coolers have the most efficient means of cooling when under identical noise conditions. As we’ve shown in our cooler reviews, this bypasses the issue where a cooler with significantly higher RPM always chart-tops. It’s not exactly fair if a cooler at 60dBA “wins” the thermal charts versus a bunch of coolers at, say, 35-40dBA, and so normalizing the noise level allows us to see if any proper differences emerge when the user is subjected to the same “volume” from their PC cooling products. We have also long used these for GPU cooler reviews. It’s time to introduce it to case reviews, we think, and we’ll be doing that by sticking with the stock case fan configuration and reducing case fan RPMs equally to meet the target noise level (CPU and GPU cooler fans remain unchanged, as these most heavily dictate CPU and GPU coolers; they are fixed speeds constantly).
This content piece started with Buildzoid’s suggestion for us to install a custom VBIOS on our RX 570 for timing tuning tests. Our card proved temperamental with the custom VBIOS, so we ended up instead – for now – testing AMD’s built-in timing level options in the drivers. AMD’s GPU drivers have a drop-down option featuring “automatic,” “timing level 1,” and “timing level 2” settings for Radeon cards, all of which lack any formal definition within the drivers. We ran an RX 570 and a Vega 56 card through most of our tests with these timings options, using dozens of test passes across the 3DMark suite (for each line item) to minimize the error margins and help narrow-in the range of statistically significant results. We also ran “real” gaming workloads in addition to these 3DMark passes.
Were we to step it up, the next goal would be to use third-party tools to manually tune the memory timings, whether GDDR5 or HBM2, or custom VBIOSes on cards that are more stable. For now, we’ll focus on AMD’s built-in options.
AMD didn’t claim that its R7 2700X Gold Edition would be special in any frequency or binning sense of the word, but exposure to the Intel i7-8086K has obviously led us to project our hopes onto AMD that it would be binned. This is, of course, a fault of our own and not of AMD’s, as it’s not like the company claimed binning, but we still wanted to try and see if we could get a golden Gold Edition sample. In this content, we’ll be establishing that the special 50th anniversary edition 2700X doesn’t come with higher clocks than stock (but it’s not like AMD claimed otherwise), then attempting to find more overclocking headroom than our 2700X and 2700 original samples.
For the most part, this CPU was released as a commemorative item. It has a laser engraving of CEO Lisa Su’s signature (not an actual signature), which clearly illustrates its purpose as more of one for display than some special bin. Despite the 50th Anniversary gift being gold, it would seem the 2700X Gold Edition is named more for its bundling with The Division 2 Gold Edition and a 1-year season pass, alongside World War Z. If you were buying these anyway, it’s not a bad deal. If not, you’d still be better off buying a 2700 and overclocking it – purely from a financial standpoint – than spending the extra money on the Gold Edition. That said, you wouldn’t get the box or laser-etched name, so once again, this is very obviously priced higher for AMD purists and fans.
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